Monnier Group Research Wiki - User contributions [en]

Etalon Engineering Run 2014Jun

2014-06-16T10:31:24Z

192.153.157.220:

This CHARA run is for installing and testing the Etalon.

by John Monnier

I arrived on 2014Jun07 with the hardware. I discovered a small clearance issue -- the edge of the mount clipped V6. see image below

[[File:etalon_clearance_problem.jpg]]

Etalon Engineering Run 2014Jun

2014-06-16T10:28:46Z

192.153.157.220: Created page with " This CHARA run is for installing and testing the Etalon. John arrived on 2014Jun07 with the hardware."

This CHARA run is for installing and testing the Etalon.

John arrived on 2014Jun07 with the hardware.

MIRC

2014-06-16T07:25:17Z

192.153.157.220:

[[MIRC:INFO|Information for MIRC Observers]]

[[MIRC:Bugs|MIRC Bugs to fix and Features to add]]

[[MIRC:UserReports|User Reports]]

[[MIRC:Reference|Reference]]

[[MIRC:DataPipeline| Data Pipeline]]

[[Calibrator sizes]]

[[Luminos stages control]]

[[Media:CHARA_UM_IP_Addresses.txt]]

[[MIRC Shutter]]

[[MIRC Log Files]]: *.mirclog for data reduction

[[MIRC/PAVO]]

[[MIRC/VEGA]]

[[MIRKWOOD disks status]]

[[MIRC and Xchan status]]

[[New computers: MIRC, CHAMP, Wolverine]] ***New***

[[Media:MIRC_Backup_Records.txt]]

[[Code Snapshots]]

[[Screenshots of MIRC and CHAMP guis]]

[[Documentation 6T data recording gui]]

[[MIRC pci card]]

[[MIRC xenomai computer upgrade 2011]]

[[MIRC 6T upgrade]]

[[Engineering 2012MayJun]]

[[Engineering 2013July]]

[[Etalon Engineering Run 2014Jun]]

Lab alignment procedure

2013-10-20T19:13:54Z

192.153.157.220:

'''1. make sure the input collimated beam is parallel to the table:'''

It is relatively easy to mount the camera parallel to the optical table, so I think it is useful to align the beam parallel to the table too. I also find it is useful to mount the input beam source on a linear stage so that when you align the beam parallel to the table, you can
easily move the beam around to shoot it into the camera.

Depending on the detailed setup, the alignment procedure could be different. Usually it is useful to have a mirror or the source
that can be steered in tiptilt. Then a common alignment procedure will be to use the tiptilt control to align the same target close to and far away from the beam source. The procedure takes several iteration steps.

'''2. make sure the home-made front metal panel is perpendicular to the beam.'''

2a. assemble the metal pieces, no lens or camera. 
2b. keep the beam size as small as possible (<~ 1mm) 
2c. put in the hole-made cylindrical target into the S mount on front metal panel, and move the beam source to be aligned to
the target. This step can be rough.
2d. install the lens tube with flat mirror (edmund, #45598, #63951) to the S mount on the front metal panel 
2e. loose the four screws that tight the metal baseplate to the linear xyz stage (newport ultra 562). Rotate the whole metal piece so that the reflected beam matches the incoming beam 

'''3. align the beam with the camera'''

3a. attach the camera to the front metal panel 
3b. install the first reimaging lens, you should be able to see a spot on the detector. Then loose
the screws on the camera, try to move the camera to put the spot at the center
of the final readout area. the readout size should start with full frame so that you can see where the spot is on the detector. Note: we are in crop mode, so if you see
light in a subarray readout, this doesn't mean the light is really in the subarray area. That's why you want to start out with full frame. 
3c. Then take out the lens, you will be see a pupil on the detector. try to move the linear xyz stage of the camera to move the center of the pupil to match
where the spot was. 
3d. put on the lens again to check if the spot has moved. If it has moved a little, iterate the above steps to get the spot match the center of the pupil.
Here is my understanding of how this step works.
[[File: WFS_lens_misalign_handdrawing.JPG]]

'''5. align the reimaging lens pair with the camera.'''

5a. Then put on the second lens, you will see the pupil again on the detector. The center of the pupil should
be close to the spot (< 5 pixels). If not, there must be some misalignment in the previous steps. 

'''6. align the lenslet array'''

6a. install the lenslet array, and you should be able to see many spots from the lenslets. 
6b. un-tighten the screws holds the rotation stage to move the rotation stage so that the spots-of-interest are not on the edge of the detector readout array. Usually I will keep at least 3 pixels away from the edge. 

'''7. align the collimated lens'''

7a. The device (optosigma, # 111-1310) that holds the collimated lens is not very secure. It is good enough for lab test, but probably not enough for on sky. So use glue to attach the lens to the optosigma device. 
7b. The device has a long arm, and doesn't have the adjustment of fine rotation. The question is how do I know if the collimated lens is parallel to the lenslet array. The method I used is to perfect vertical reference like a ruler, and a piece of very thin paper like lens paper. Then push the ruler against the device and use the paper to feel the friction on the top and bottom part of the touched places. If you feel strong friction on both part, then the lens is placed vertically and parallel to the lenslet array.

[[File: alignment_of_collimated_lens1_2013Oct20.jpg]]

[[File: alignment_of_collimated_lens2_2013Oct20.jpg]]

Lab alignment procedure

2013-10-20T19:13:10Z

192.153.157.220:

'''1. make sure the input collimated beam is parallel to the table:'''

It is relatively easy to mount the camera parallel to the optical table, so I think it is useful to align the beam parallel to the table too. I also find it is useful to mount the input beam source on a linear stage so that when you align the beam parallel to the table, you can
easily move the beam around to shoot it into the camera.

Depending on the detailed setup, the alignment procedure could be different. Usually it is useful to have a mirror or the source
that can be steered in tiptilt. Then a common alignment procedure will be to use the tiptilt control to align the same target close to and far away from the beam source. The procedure takes several iteration steps.

'''2. make sure the home-made front metal panel is perpendicular to the beam.'''

2a. assemble the metal pieces, no lens or camera. 
2b. keep the beam size as small as possible (<~ 1mm) 
2c. put in the hole-made cylindrical target into the S mount on front metal panel, and move the beam source to be aligned to
the target. This step can be rough.
2d. install the lens tube with flat mirror (edmund, #45598, #63951) to the S mount on the front metal panel 
2e. loose the four screws that tight the metal baseplate to the linear xyz stage (newport ultra 562). Rotate the whole metal piece so that the reflected beam matches the incoming beam 

'''3. align the beam with the camera'''

3a. attach the camera to the front metal panel 
3b. install the first reimaging lens, you should be able to see a spot on the detector. Then loose
the screws on the camera, try to move the camera to put the spot at the center
of the final readout area. the readout size should start with full frame so that you can see where the spot is on the detector. Note: we are in crop mode, so if you see
light in a subarray readout, this doesn't mean the light is really in the subarray area. That's why you want to start out with full frame. 
3c. Then take out the lens, you will be see a pupil on the detector. try to move the linear xyz stage of the camera to move the center of the pupil to match
where the spot was. 
3d. put on the lens again to check if the spot has moved. If it has moved a little, iterate the above steps to get the spot match the center of the pupil.
Here is my understanding of how this step works.
[[File: WFS_lens_misalign_handdrawing.JPG]]

'''5. align the reimaging lens pair with the camera.'''

5a. Then put on the second lens, you will see the pupil again on the detector. The center of the pupil should
be close to the spot (< 5 pixels). If not, there must be some misalignment in the previous steps. 

'''6. align the lenslet array'''

6a. install the lenslet array, and you should be able to see many spots from the lenslets. 
6b. un-tighten the screws holds the rotation stage to move the rotation stage so that the spots-of-interest are not on the edge of the detector readout array. Usually I will keep at least 3 pixels away from the edge. 

'''7. align the collimated lens'''

7a. The device (optosigma, # 111-1310) that holds the collimated lens is not very secure. It is good enough for lab test, but probably not enough for on sky. So use glue to attach the lens to the optosigma device. 
7b. The device has a long arm, and doesn't have the adjustment of fine rotation. The question is how do I know if the collimated lens is parallel to the lenslet array. The method I used is to perfect vertical reference like a ruler, and a piece of very thin paper like lens paper. Then push the ruler against the device and use the paper to feel the friction on the top and bottom part of the touched places. If you feel strong friction on both part, then the lens is placed vertically and parallel to the lenslet array.

[[File: alignment_of_collimated_lens1_2013Oct20.png]]
[[File: alignment_of_collimated_lens2_2013Oct20.png]]

Lab alignment procedure

2013-10-20T19:06:10Z

192.153.157.220:

'''1. make sure the input collimated beam is parallel to the table:'''

It is relatively easy to mount the camera parallel to the optical table, so I think it is useful to align the beam parallel to the table too. I also find it is useful to mount the input beam source on a linear stage so that when you align the beam parallel to the table, you can
easily move the beam around to shoot it into the camera.

Depending on the detailed setup, the alignment procedure could be different. Usually it is useful to have a mirror or the source
that can be steered in tiptilt. Then a common alignment procedure will be to use the tiptilt control to align the same target close to and far away from the beam source. The procedure takes several iteration steps.

'''2. make sure the home-made front metal panel is perpendicular to the beam.'''

2a. assemble the metal pieces, no lens or camera. 
2b. keep the beam size as small as possible (<~ 1mm) 
2c. put in the hole-made cylindrical target into the S mount on front metal panel, and move the beam source to be aligned to
the target. This step can be rough.
2d. install the lens tube with flat mirror (edmund, #45598, #63951) to the S mount on the front metal panel 
2e. loose the four screws that tight the metal baseplate to the linear xyz stage (newport ultra 562). Rotate the whole metal piece so that the reflected beam matches the incoming beam 

'''3. align the beam with the camera'''

3a. attach the camera to the front metal panel 
3b. install the first reimaging lens, you should be able to see a spot on the detector. Then loose
the screws on the camera, try to move the camera to put the spot at the center
of the final readout area. the readout size should start with full frame so that you can see where the spot is on the detector. Note: we are in crop mode, so if you see
light in a subarray readout, this doesn't mean the light is really in the subarray area. That's why you want to start out with full frame. 
3c. Then take out the lens, you will be see a pupil on the detector. try to move the linear xyz stage of the camera to move the center of the pupil to match
where the spot was. 
3d. put on the lens again to check if the spot has moved. If it has moved a little, iterate the above steps to get the spot match the center of the pupil.
Here is my understanding of how this step works.
[[File: WFS_lens_misalign_handdrawing.JPG]]

'''5. align the reimaging lens pair with the camera.'''

5a. Then put on the second lens, you will see the pupil again on the detector. The center of the pupil should
be close to the spot (< 5 pixels). If not, there must be some misalignment in the previous steps. 

'''6. align the lenslet array'''

6a. install the lenslet array, and you should be able to see many spots from the lenslets. 
6b. un-tighten the screws holds the rotation stage to move the rotation stage so that the spots-of-interest are not on the edge of the detector readout array. Usually I will keep at least 3 pixels away from the edge. 

'''7. align the collimated lens'''

7a. The device (optosigma, # 111-1310) that holds the collimated lens is not very secure. It is good enough for lab test, but probably not enough for on sky. So use glue to attach the lens to the optosigma device. 
7b. The device has a long arm, and doesn't have the adjustment of fine rotation, so it is hard to put it parallel to the lenslet array. What I did is to visually check if the lens is

[[File:pupil_nolens_2013Jun07.png]]
[[File:focus_onelens_2013Jun07.png]]
[[File:pupil_twolens_2013Jun07.png]]
[[File: alignment_of_collimated_lens_2013Oct20.png]]

Lab alignment procedure

2013-10-20T18:42:31Z

192.153.157.220:

'''1. make sure the input collimated beam is parallel to the table:'''

It is relatively easy to mount the camera parallel to the optical table, so I think it is useful to align the beam parallel to the table too. I also find it is useful to mount the input beam source on a linear stage so that when you align the beam parallel to the table, you can
easily move the beam around to shoot it into the camera.

Depending on the detailed setup, the alignment procedure could be different. Usually it is useful to have a mirror or the source
that can be steered in tiptilt. Then a common alignment procedure will be to use the tiptilt control to align the same target close to and far away from the beam source. The procedure takes several iteration steps.

'''2. make sure the home-made front metal panel is perpendicular to the beam.'''

2a. assemble the metal pieces, no lens or camera. 
2b. keep the beam size as small as possible (<~ 1mm) 
2c. put in the hole-made cylindrical target into the S mount on front metal panel, and move the beam source to be aligned to
the target. This step can be rough.
2d. install the lens tube with flat mirror (edmund, #45598, #63951) to the S mount on the front metal panel 
2e. loose the four screws that tight the metal baseplate to the linear xyz stage (newport ultra 562). Rotate the whole metal piece so that the reflected beam matches the incoming beam 

'''3. align the center of the beam to the center of the threaded hole of the front metal panel (rough)'''

3a. put a second iris close to the camera (theoretically you can first iris, but it is too far away to reach), and beam size small ~1mm. And fully
open the first iris. 
3b. put the cylindrical target into the hole of the front metal panel. Note, the target doesn't tightly fit into the hole, it can be shaken, that's why
this step is rough. 
3c. move the second iris to put the laser beam at the center of the target. 

'''4. align the beam with the camera'''

4a. attach the camera to the front metal panel 
4b. install the first reimaging lens, you should be able to see a spot on the detector. Then loose
the screws on the camera, try to move the camera to put the spot at the center
of the final readout area. the readout size should start with full frame so that you can see where the spot is on the detector. Note: we are in crop mode, so if you see
light in a subarray readout, this doesn't mean the light is really in the subarray area. That's why you want to start out with full frame. 
4c. Then take out the lens, you will be see a pupil on the detector. try to move the linear xyz stage of the camera to move the center of the pupil to match
where the spot was. 
4d. put on the lens again to check if the spot has moved. If it has moved a little, iterate the above steps to get the spot match the center of the pupil.
Here is my understanding of how this step works.
[[File: WFS_lens_misalign_handdrawing.JPG]]

'''5. align the reimaging lens pair with the camera.'''

5a. Then put on the second lens, you will see the pupil again on the detector. The center of the pupil should automatically
match the spot. 

[[File:pupil_nolens_2013Jun07.png]]
[[File:focus_onelens_2013Jun07.png]]
[[File:pupil_twolens_2013Jun07.png]]

Lab alignment procedure

2013-10-20T17:52:05Z

192.153.157.220:

'''1. make sure the input collimated beam is parallel to the table:'''

It is relatively easy to mount the camera parallel to the table, so I think it is useful to align the beam parallel to the table too. I also find it is useful to

1a. put an iris in front of the beam to shrink the laser beam size to ~1mm 
1b. iteratively place the same target at two places along the beam, the two places have to be far apart for high precision
and the connection of the two places has to be parallel to the table 
1c. adjust the tiptilt of the mirror to make sure the beam hit the same position of the target at the two places. The last
mirror is for fine adjustment for target at farther position, and the second to last mirror is for coarse adjustment for the target
at closer position. 

'''2. make sure the home-made front metal panel is perpendicular to the beam.'''

2a. assemble the metal pieces, no lens or camera. 
2b. open the iris to be about 5 mm 
2c. use the edge of a rectangular card to block half of the beam, and let the other half pass through 
2d. put a flat mirror tightly against the front metal panel (I used one hand to hold and push the mirror) to reflect the passed-through
half beam 
2e. loose the four screws that tight the metal baseplate to the linear xyz stage. Rotate the whole metal piece so that the reflected half beam
matches the blocked half beam horizontally (meaning they become a circle, but it is not true if they are not vertically aligned) 
2f. If the reflected beam and blocked beam don't match vertically, we can put some shims between the triangles panels and the front metal panel.
But I didn't find it necessary this time. 

'''3. align the center of the beam to the center of the threaded hole of the front metal panel (rough)'''

3a. put a second iris close to the camera (theoretically you can first iris, but it is too far away to reach), and beam size small ~1mm. And fully
open the first iris. 
3b. put the cylindrical target into the hole of the front metal panel. Note, the target doesn't tightly fit into the hole, it can be shaken, that's why
this step is rough. 
3c. move the second iris to put the laser beam at the center of the target. 

'''4. align the beam with the camera'''

4a. attach the camera to the front metal panel 
4b. install the first reimaging lens, you should be able to see a spot on the detector. Then loose
the screws on the camera, try to move the camera to put the spot at the center
of the final readout area. the readout size should start with full frame so that you can see where the spot is on the detector. Note: we are in crop mode, so if you see
light in a subarray readout, this doesn't mean the light is really in the subarray area. That's why you want to start out with full frame. 
4c. Then take out the lens, you will be see a pupil on the detector. try to move the linear xyz stage of the camera to move the center of the pupil to match
where the spot was. 
4d. put on the lens again to check if the spot has moved. If it has moved a little, iterate the above steps to get the spot match the center of the pupil.
Here is my understanding of how this step works.
[[File: WFS_lens_misalign_handdrawing.JPG]]

'''5. align the reimaging lens pair with the camera.'''

5a. Then put on the second lens, you will see the pupil again on the detector. The center of the pupil should automatically
match the spot. 

[[File:pupil_nolens_2013Jun07.png]]
[[File:focus_onelens_2013Jun07.png]]
[[File:pupil_twolens_2013Jun07.png]]

2012Nov04

2012-11-04T19:09:37Z

192.153.157.220:

note: the PCs are very bad before the adjustment,
the peaks of PCs are about the same or less than the peak of MIRC light

[[Media:b1_2012Nov04.png]]

[[Media:b2_2012Nov04.png]]

[[Media:b12_2012Nov04.png]]

[[Media:b3_2012Nov04.png]]

[[Media:b4_2012Nov04.png]]

[[Media:b34_2012Nov04.png]]

[[Media:b5_2012Nov04.png]]

[[Media:b6_2012Nov04.png]]

[[Media:b56_2012Nov04.png]]

2012Nov04

2012-11-04T19:08:32Z

192.153.157.220: Created page with "note: the PCs are very bad before the adjustment, the peaks of PCs are about the same or less than the peak of MIRC light"

note: the PCs are very bad before the adjustment,
the peaks of PCs are about the same or less than the peak of MIRC light

MIRC and Xchan status

2012-11-04T19:07:07Z

192.153.157.220:

[[2010Dec09]]

[[2010Dec12]]

[[2011Nov2]]

[[2012Apr04]]

[[2012Nov04]]

Observing History and Target Files

2012-08-01T03:53:45Z

192.153.157.220:

'''Physical location of the MIRC paper logs'''

----

Stefan Kraus: ---

Fabien Baron: 15 Sept 2005 to May 2007, 2-4 Dec 2009, 2-17 Aug 2010

Xiao Che: ---

John Monnier: all others

'''CLASSIC observing history:'''

----

'''Observation logs:'''

[[CLASSIC Observing Run 2009Jun]]

[[CLASSIC Observing Run 2009OctNov]]

[[CLIMB/CLASSIC Observing Run 2010Jun]]

[[CLIMB/CLASSIC Observing Run 2010Jul]]

[[CLIMB/CLASSIC Observing Run 2010SepOct]] (scans from Yamina's logs)

[[CLIMB/CLASSIC Observing Run 2010Nov-Dec]]

[[CLIMB Observing Run 2011Apr]]

[[CLIMB Observing Run 2011Jun-Jul-Aug]]

[[CLIMB Observing Run UT2011Dec06]]

[[CLIMB Observing Run 2011 Oct 25 - 28]]

[[CLIMB Observing Run 2011 Dec 20 - 24]]

[[CLIMB Observing Run 2012 Jun 27 - Jul 01]]

----
'''CHAMP/MIRC observing runs:'''

[[CHAMP/MIRC Observing Run 2011May]]

[[CHAMP/MIRC Observing Run 2011July]]

----

'''CHARA observing history:'''

[[Media:CHARA_Target_History.2012Jul.txt]]

[[Media:CHARA_Observing_History.2012Jul.txt]]

----

'''MIRC observation logs:'''

[[MIRC/VEGA Observing Run 2010Oct]]

[[MIRC Observing Run 2011Dec]]

[[MIRC Observing Run 2012Jun]]

----

'''MIRC observing history:'''

[[Media:MIRC_Target_History_2012Jul.txt]] updated 2012Jul

[[Media:MIRC_Observing_History_2012Jul.txt]] updated 2012Jul

[[Media: MIRC_src.txt]] update 2010Jun
* Ming's list of mirc targets with information

----

'''PAVO observing history:'''

[[Media: PAVO_Target_History_2011Feb.txt]]

[[Media: PAVO_Observing_History_2011Feb.txt]]
----

'''Keck Interferometer Observing Summary (from Rafael):'''

[[Media: ki_ysos_summary.txt]] updated 2010Oct

----

'''VEGA/CLIMB:'''

[[Media: VEGA_CLIMB_observing_history_2010Dec.txt]] updated 2010Dec

----

'''Good targets for 6T MIRC'''

[[Media: KMdwarf_100pc_1mas.txt]] K,M dwarf stars within 100pc with size larger than 1mas

----

'''Photometry Observations of Exoplanets'''

[[Media: Photometry_target_history.txt]] Photometry observing history of transiting planets (last update: 04/26/2011)

Engineering 2012MayJun

2012-06-26T00:31:40Z

192.153.157.220: /* MIRC high-res Engineering */

== Computer OSes ==

* May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.

* May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.

* May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)

* May 28: also upgraded lothlorien to ease work on CHAMP

== CHAMP -- hardware ==

* May 26: Larry started pumping CHAMP

* May 27: vacuum ~ 2e-3

* May 28: vacuum reached 1.0e-3, so not quite ready for pumping.

* May 29: CHAMP cool, pressure ~7e-7

* May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

== CHAMP -- software ==

* May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).

* May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".

* May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.

* May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.

* Jun 1-2 : been working on the aligment GUI, fixed many bugs, see
https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

* Jun 2-12: code for new pzts, cophasing with MIRC (see below).

* Jun 12: W1(B1)-W2(B2), ref= W1, delay line fringes W1: 2.200000m, W2: 2.007073, gain is +0.25 on B1B2 to track fringes.

Thresholding tests:

* lowering SLtoS threshold at 2-3 instead of 4 helps to not loose weak fringes.

== Final final cophasing of MIRC+CHAMP with CHARA ==

Work on June 10, 2012 (JDM/XC)

REFS: MIRC IR6 87750, CHAMP IR6 is not adjustable

BEAMS RETRO MIRC CHAMP

5&6 5.720 mm IR5: 55250 IR5: 136685

4&5 5.841 mm IR4: 84450 IR4: 146754

3&4 5.375 mm IR3: 58262 IR3: 155554

2&3 5.940 mm IR2: 77030 IR2: 171589

1&2 5.024 mm IR1: 68580 IR1: 179630

6&1 DL below ---- BC: 44300

DL: W1(B1)-W2(B6), W1:1.00000m, W2:1.222532m

Starting 5:07pm

Prep: Homing RETRO

----

'''BEAM 5-6'''

MIRC Quality Control checks

Beam 5: 66 cts peak / 732 cts, FWHM 7.6 mu (Fluxes here are xchan / fringe quad)

Beam 6: 51 cts peak / 642 cts, FWHM 7.1 mu

FRINGES (VIS~90%, very little dispersion):

ir5 67750, ir 6 87750, retro 4.723.

Goal: FIX IR6 87750, RETRO 5.720mm, adjust IR5: 55250 (CALIBRATION: 12.5 microns IR% per 10 microns of RETRO)

CHAMP alignment:

Beam5 image quality is great.

Beam5 R6 comment says "image clean" but actually two spots. I will choose bottom one (top one seems to lead to failure)

Beam6 L6 image looks very elongated... vignetting? ugh.

Looking for fringes...
FOUND: champ IR5 136685, RETRO 5.720

----

'''BEAM 4-5'''

MIRC Quality Control checck

Beam 4: 85 cts peak / 950 cts, FWHM 6.7 mu (Fluxes here are xchan / fringe quad)

Beam 5: 75 cts peak / 860 cts, FWHM 6.6 mu

Fringes (vis ~ 70%, detectable but small dispersion)!:
MIRC-IR4: 84450, RETRO 5.841

CHAMP Alignment:

Problems getting all spots to overlap. It hink the soluiont was to choose different spot for B5 R5...
champ ir4: 146754, RETRO 5.841

finished 6:45pm

----

'''BEAM 3-4'''

MIRC Quality Control checck

Beam 3: 130 cts peak / 1240 cts, FWHM 7.9 mu (Fluxes here are xchan / fringe quad)

Beam 4: 65 cts peak / 770 cts, FWHM 7.7 mu

FRINGES!: (VIS~60%, no obvious dispersion)
MIRC IR3: 58262 RETRO 5.375

CHAMP FRINGS:
CHAMP IR3: 155554 RETRO 5.375

----

'''BEAM 2-3'''

MIRC Quality Control checck

Beam 2: 110 cts peak / 1200 cts, FWHM 6.5 mu (Fluxes here are xchan / fringe quad)

Beam 3: 107 cts peak / 1180 cts, FWHM 7.5 mu

FRINGES!: (VIS~90%, most dispersion so far...)
MIRC IR2: 77030 RETRO 5.940

CHAMP FRINGE:
CHAMP IR2: 171589 RETRO 5.94

----

'''BEAM 1-2'''

MIRC Quality Control checck

Beam 1: 98 cts peak / 1250 cts, FWHM 6.9 mu (Fluxes here are xchan / fringe quad)

Beam 2: 113 cts peak / 1100 cts, FWHM 7.7 mu

FRINGES!: (VIS~85%, little dispersion....)
MIRC IR1: 68580 RETRO 5.024

CHAMP FRINGE:
CHAMP IR1: 179630 RETRO 5.94

----

'''BEAM 6-1'''

Delay line fringes on W1(B1)-W2(B6) with W1 at 1.000000 m and W2 at 1.222532 m.

MIRC IR1 68580, IR6 87750

CHAMP BC: 44300 (-1000 on BC is equivalent to +50 um on W2)

== Data Analysis ==

*UT2012Jun14

Looked at BEAM Ratios for MWC 361 on sky performance.

Beam order; W1 S2 S1 E1 E2 W2

Note that B2/S2 has the worst quality. B5/E2 is the best.

with a camera rate of 250Hz:

Based on shutters, approximately champ files 00081 to 0096

{|
| || B1 W1 || B2 S2 || B3 S1 || B4 E1 || B5 E2 || B6 W2
|-
|Total || 149.2 || 54.1 || 87.6 || 69.3 || 112.7 || 91.3
|-
|Li || 0.37 || '''0.28''' || '''0.28''' || 0.39 || 0.35 || 0.36
|-
|Ri || 0.23 || 0.27 || 0.23 || 0.24 || 0.33 || 0.25
|-
|Li+1 || 0.14 || 0.12 || '''0.06''' || 0.12 || '''0.05''' || 0.17
|-
|Ri+1 || 0.26 || 0.33 || '''0.44''' || 0.25 || 0.27 || 0.22
|}

(JDM)

based on these funny results on B3 especially we are looking carefully at engineering beam.
we arechecking flux ratios for beam 3 and image quality.

== Nightly Log ==

*UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

----
*UT June 14, 2012

goal track fringes with CHAMP.

problems: software accumulator for envelope was corrupted by a recent change. spent time tracking that down.

W1 telescope has constant tracking problems between 30-42 degrees or so. frustrating.

MIRC found fringes on one CAL but not on MWC 631 (except one cross fringe).

Now trying to get fringes on a new cal.

MWC361 had about 50 counts at 250Hz. but coudln't find fringes

problems with tracking W1 and S1.

12:15am

Now going to a cal that is closer to mwc 361: hd 205776

MIRC is tracking fringes fine. CHAMP found fringes for champ IR4: 147084 IR5: 136845. BC: 44660 IR1: 179550

GAINS: BC1 +0.25, BC2: -0.25 BC3: +0.25, BC4: -0.25, BC5: +0.25, BC6: -0.25

MIRC: 00291 champ 0004-005..
SHUTTERS: mirc 309->408

champ is taking data during shutters.. will have to sort this out! at 0006-> 0040 or something.

note: W1 was not tweaked at all so the fluxes will not be representative of performance except E2W2 were optimized.

hd 200775

W1 tracking fine above 41 m.

mirc is optimizing.

MIRC: S2 5.89 E1 2.38 E2 1.92 W1 1.25 W2 ref S1 XX

FT offsets: BC1 -.325 BC2 BC3 XX BC4 XX BC5 .209 BC6 .060

We found fringes between W2-W1, e1-e2, e2-w2.. but not for w1-s2.
We

We could never find S2-W1 fringes. not sure why. we found on calibrator but could not find on mwc 361.
probably too resolved !!

taking shutter sequence.. mirc data + champ (champ0081=>).

plan is to next re-optimize fluxes and search for fringes on mirc.

note -- signal on L2 was VERY WEAK.. maybe alignment?
beam 6 L1 also weak

maybe mwc 361 is resolved W1-S2 baseline... try another option?

Switching S1 <-> S2

back on sky. we changed pops too .

3:43am. peaking up on the

found fringes on cal.
found fringes on mwc361 but NOT S2-E1 .. no fringes again .
BC1: -0.756 BC2 XX BC3 XX BC4 (cal) -1.071 BC5 -0.023 BC6 0.227

but no S2-E1 fringes... mwc 361 fringes must be too weak for long baselines!

we took 250Hz data champ 0165-182 as a test to see if its better to go slower.
so we are taking more data at 125Hz. 70mu scans weres saturateda bout 3/4 of the way through on mwc361 (k=4.6) -- so not too practical.

(sorry these logs are bad -- but wiki logs suck and I am tired...!)

==

*UT June 15, 2012

cal: HD 156928. got fringes on mirc and champ -- cophased.

now trying mwc 275.

we got fringes easily on S1 S2. saw weak fringes on W2W1 and E2W2. (E1 was out of delay).

at 250Hz we had about 60-100 counts on each channel.

our algorithm did not 'see' or lock on the weak fringes. but maybe we can tweak the algorithm.

we tried 500Hz to see if the SNR improved. but seems ot have gotten worse. we no longer saw the weaker fringes.

tomorrow we will improve our fringe detedtion algorithm for intermiittant weak fringes in a way more like how classic/climb works.

we took some 500Hz data for later study on mwc 275 but .. it caused some odd display problems on ft gui so not sure if it saved properly.

*UT Jun 16 2012

using H pass dicroic for beams 1-2. using HK pass for beam 3-6 to allow test of J band mode.

HD 156928 (JHK 4.1 4.0 4.2): all 6 fringes !! CHAMP 0005->0007.

in file 8 we will do a by-hand shutter... BG.. B1 B2 B3 B4 B5 B6 ALL

NEXT we are putting j band bfilter and the 1.3mu SWP on beams 1-2 only. the others are close dbeause they
are swamped with laser light.

MWC 275 (JHK 6.2 5.5 4.8). CRAPPY J band fringes ! in B1 B2 (BC2) !!!
Can't keep the fringes .. but we are going to take a little data for posterity.

we are using ~40micron opd amp..

champ 00009-> 10.

Trying a longer stroke mode and also at 500Hz to see if the fringes will stay put for tracking before trying MWC 275.

fringes look cleaner.. but still FAINT!!!

WE CANT SAVE DATA! it seems for this longer stroke the spooler is hanging the system.

more debugging is needed !!

now on MWC 275: we have very few counts .. at 500Hz on BC2 (w1-s2) , 6 counts ! (yes.. 6 counts). on the calibrator we had about 50 counts per channel. This does not look good.

Next up. v1295 Aql Calibrator.

1:19am

HD 187923 using 50 micron, 250Hz scanning.

Found 3 fringes but the others eluded us... That is IT for the 2011 CHAMP RUN.

*good things:

new PZTS work really well

new 1.3micron filter works

first J band fringes

tracked 4T for MIRC on mwc 361

software more robust

good cophasing with mirc and chara system -- well documented

*bad things:

couldn't track mwc 275 firnges -- saw 3 out of 5..

seeing did not cooperate at the end

tracking algorithms not optimal for super faint fringes (come and go)

stubborn software bugs (accum, saving large scans,

j band mwc 275 looked hopelessly weak

*to do:

check fluxes using the saved files. how far away are we from performance of climb? this is crucial to know what to focus on next run !

== MIRC high-res Engineering ==
'''2012Jun24 afternoon'''

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 5, # of frames: 350., frames per reset: 350.
We deinterlace routine in real time code so that it will read the top two quadrants as the mirc and PCs quadrants. On the python gui side,
nothing requires changing and everything looks exactly the same as before.

Note: under high-res mode, the # of rows should be 72 rows (in camera setting, it should be 72*2=144), but the integration time is 48ms
which is too long, so we reduced the # of rows to half, and the integration time is now 24ms.

Method: we move fringe to one of the edges as the beginning point, and then take 10 files. Then move 30/40 micron each step,
and take 10 files until the fringe reaches the other end. The relative offsets are saved in the header of each file.

Experiment 1 (LDC was in):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1220.4mm
file number: 83 - 142

Experiment 2(LDC was in):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1005mm
filen number: 168 - 242

'''2012Jun25 morning'''

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 4, # of frames: 400, frames per reset: 400.

Experiment 1 (LDC was out):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1222.8mm
file number: 864-923

Experiment 2 (LDC was out):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1007mm
filen number: 924 - 983
note: we just realized that we were tracking the side fringe, so the fringes was very weak,
don't use the experiment 2 data.
----

'''2012Jun25 afternoon'''

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 4, # of frames: 400., frames per reset: 400.

Experiment 1 (LDC was out):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1222.5mm
file number: 984 - 1033

Experiment 2 (LDC was out):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1007mm
filen number: 1055 - 1093 (UT2012Jun25), 0001 - 0060(UT2012Jun26)
note: UT day changed during data taking, so we redo the experiment
and the files are saved on UT2012Jun26. UT2012Jun25 is still usable,
but only contains partial experiment data.

Engineering 2012MayJun

2012-06-26T00:14:22Z

192.153.157.220: /* MIRC high-res Engineering */

Engineering 2012MayJun

2012-06-25T13:43:42Z

192.153.157.220: /* MIRC high-res Engineering */

== Computer OSes ==

* May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.

* May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.

* May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)

* May 28: also upgraded lothlorien to ease work on CHAMP

== CHAMP -- hardware ==

* May 26: Larry started pumping CHAMP

* May 27: vacuum ~ 2e-3

* May 28: vacuum reached 1.0e-3, so not quite ready for pumping.

* May 29: CHAMP cool, pressure ~7e-7

* May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

== CHAMP -- software ==

* May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).

* May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".

* May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.

* May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.

* Jun 1-2 : been working on the aligment GUI, fixed many bugs, see
https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

* Jun 2-12: code for new pzts, cophasing with MIRC (see below).

* Jun 12: W1(B1)-W2(B2), ref= W1, delay line fringes W1: 2.200000m, W2: 2.007073, gain is +0.25 on B1B2 to track fringes.

Thresholding tests:

* lowering SLtoS threshold at 2-3 instead of 4 helps to not loose weak fringes.

== Final final cophasing of MIRC+CHAMP with CHARA ==

Work on June 10, 2012 (JDM/XC)

REFS: MIRC IR6 87750, CHAMP IR6 is not adjustable

BEAMS RETRO MIRC CHAMP

5&6 5.720 mm IR5: 55250 IR5: 136685

4&5 5.841 mm IR4: 84450 IR4: 146754

3&4 5.375 mm IR3: 58262 IR3: 155554

2&3 5.940 mm IR2: 77030 IR2: 171589

1&2 5.024 mm IR1: 68580 IR1: 179630

6&1 DL below ---- BC: 44300

DL: W1(B1)-W2(B6), W1:1.00000m, W2:1.222532m

Starting 5:07pm

Prep: Homing RETRO

----

'''BEAM 5-6'''

MIRC Quality Control checks

Beam 5: 66 cts peak / 732 cts, FWHM 7.6 mu (Fluxes here are xchan / fringe quad)

Beam 6: 51 cts peak / 642 cts, FWHM 7.1 mu

FRINGES (VIS~90%, very little dispersion):

ir5 67750, ir 6 87750, retro 4.723.

Goal: FIX IR6 87750, RETRO 5.720mm, adjust IR5: 55250 (CALIBRATION: 12.5 microns IR% per 10 microns of RETRO)

CHAMP alignment:

Beam5 image quality is great.

Beam5 R6 comment says "image clean" but actually two spots. I will choose bottom one (top one seems to lead to failure)

Beam6 L6 image looks very elongated... vignetting? ugh.

Looking for fringes...
FOUND: champ IR5 136685, RETRO 5.720

----

'''BEAM 4-5'''

MIRC Quality Control checck

Beam 4: 85 cts peak / 950 cts, FWHM 6.7 mu (Fluxes here are xchan / fringe quad)

Beam 5: 75 cts peak / 860 cts, FWHM 6.6 mu

Fringes (vis ~ 70%, detectable but small dispersion)!:
MIRC-IR4: 84450, RETRO 5.841

CHAMP Alignment:

Problems getting all spots to overlap. It hink the soluiont was to choose different spot for B5 R5...
champ ir4: 146754, RETRO 5.841

finished 6:45pm

----

'''BEAM 3-4'''

MIRC Quality Control checck

Beam 3: 130 cts peak / 1240 cts, FWHM 7.9 mu (Fluxes here are xchan / fringe quad)

Beam 4: 65 cts peak / 770 cts, FWHM 7.7 mu

FRINGES!: (VIS~60%, no obvious dispersion)
MIRC IR3: 58262 RETRO 5.375

CHAMP FRINGS:
CHAMP IR3: 155554 RETRO 5.375

----

'''BEAM 2-3'''

MIRC Quality Control checck

Beam 2: 110 cts peak / 1200 cts, FWHM 6.5 mu (Fluxes here are xchan / fringe quad)

Beam 3: 107 cts peak / 1180 cts, FWHM 7.5 mu

FRINGES!: (VIS~90%, most dispersion so far...)
MIRC IR2: 77030 RETRO 5.940

CHAMP FRINGE:
CHAMP IR2: 171589 RETRO 5.94

----

'''BEAM 1-2'''

MIRC Quality Control checck

Beam 1: 98 cts peak / 1250 cts, FWHM 6.9 mu (Fluxes here are xchan / fringe quad)

Beam 2: 113 cts peak / 1100 cts, FWHM 7.7 mu

FRINGES!: (VIS~85%, little dispersion....)
MIRC IR1: 68580 RETRO 5.024

CHAMP FRINGE:
CHAMP IR1: 179630 RETRO 5.94

----

'''BEAM 6-1'''

Delay line fringes on W1(B1)-W2(B6) with W1 at 1.000000 m and W2 at 1.222532 m.

MIRC IR1 68580, IR6 87750

CHAMP BC: 44300 (-1000 on BC is equivalent to +50 um on W2)

== Data Analysis ==

*UT2012Jun14

Looked at BEAM Ratios for MWC 361 on sky performance.

Beam order; W1 S2 S1 E1 E2 W2

Note that B2/S2 has the worst quality. B5/E2 is the best.

with a camera rate of 250Hz:

Based on shutters, approximately champ files 00081 to 0096

{|
| || B1 W1 || B2 S2 || B3 S1 || B4 E1 || B5 E2 || B6 W2
|-
|Total || 149.2 || 54.1 || 87.6 || 69.3 || 112.7 || 91.3
|-
|Li || 0.37 || '''0.28''' || '''0.28''' || 0.39 || 0.35 || 0.36
|-
|Ri || 0.23 || 0.27 || 0.23 || 0.24 || 0.33 || 0.25
|-
|Li+1 || 0.14 || 0.12 || '''0.06''' || 0.12 || '''0.05''' || 0.17
|-
|Ri+1 || 0.26 || 0.33 || '''0.44''' || 0.25 || 0.27 || 0.22
|}

(JDM)

based on these funny results on B3 especially we are looking carefully at engineering beam.
we arechecking flux ratios for beam 3 and image quality.

== Nightly Log ==

*UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

----
*UT June 14, 2012

goal track fringes with CHAMP.

problems: software accumulator for envelope was corrupted by a recent change. spent time tracking that down.

W1 telescope has constant tracking problems between 30-42 degrees or so. frustrating.

MIRC found fringes on one CAL but not on MWC 631 (except one cross fringe).

Now trying to get fringes on a new cal.

MWC361 had about 50 counts at 250Hz. but coudln't find fringes

problems with tracking W1 and S1.

12:15am

Now going to a cal that is closer to mwc 361: hd 205776

MIRC is tracking fringes fine. CHAMP found fringes for champ IR4: 147084 IR5: 136845. BC: 44660 IR1: 179550

GAINS: BC1 +0.25, BC2: -0.25 BC3: +0.25, BC4: -0.25, BC5: +0.25, BC6: -0.25

MIRC: 00291 champ 0004-005..
SHUTTERS: mirc 309->408

champ is taking data during shutters.. will have to sort this out! at 0006-> 0040 or something.

note: W1 was not tweaked at all so the fluxes will not be representative of performance except E2W2 were optimized.

hd 200775

W1 tracking fine above 41 m.

mirc is optimizing.

MIRC: S2 5.89 E1 2.38 E2 1.92 W1 1.25 W2 ref S1 XX

FT offsets: BC1 -.325 BC2 BC3 XX BC4 XX BC5 .209 BC6 .060

We found fringes between W2-W1, e1-e2, e2-w2.. but not for w1-s2.
We

We could never find S2-W1 fringes. not sure why. we found on calibrator but could not find on mwc 361.
probably too resolved !!

taking shutter sequence.. mirc data + champ (champ0081=>).

plan is to next re-optimize fluxes and search for fringes on mirc.

note -- signal on L2 was VERY WEAK.. maybe alignment?
beam 6 L1 also weak

maybe mwc 361 is resolved W1-S2 baseline... try another option?

Switching S1 <-> S2

back on sky. we changed pops too .

3:43am. peaking up on the

found fringes on cal.
found fringes on mwc361 but NOT S2-E1 .. no fringes again .
BC1: -0.756 BC2 XX BC3 XX BC4 (cal) -1.071 BC5 -0.023 BC6 0.227

but no S2-E1 fringes... mwc 361 fringes must be too weak for long baselines!

we took 250Hz data champ 0165-182 as a test to see if its better to go slower.
so we are taking more data at 125Hz. 70mu scans weres saturateda bout 3/4 of the way through on mwc361 (k=4.6) -- so not too practical.

(sorry these logs are bad -- but wiki logs suck and I am tired...!)

==

*UT June 15, 2012

cal: HD 156928. got fringes on mirc and champ -- cophased.

now trying mwc 275.

we got fringes easily on S1 S2. saw weak fringes on W2W1 and E2W2. (E1 was out of delay).

at 250Hz we had about 60-100 counts on each channel.

our algorithm did not 'see' or lock on the weak fringes. but maybe we can tweak the algorithm.

we tried 500Hz to see if the SNR improved. but seems ot have gotten worse. we no longer saw the weaker fringes.

tomorrow we will improve our fringe detedtion algorithm for intermiittant weak fringes in a way more like how classic/climb works.

we took some 500Hz data for later study on mwc 275 but .. it caused some odd display problems on ft gui so not sure if it saved properly.

*UT Jun 16 2012

using H pass dicroic for beams 1-2. using HK pass for beam 3-6 to allow test of J band mode.

HD 156928 (JHK 4.1 4.0 4.2): all 6 fringes !! CHAMP 0005->0007.

in file 8 we will do a by-hand shutter... BG.. B1 B2 B3 B4 B5 B6 ALL

NEXT we are putting j band bfilter and the 1.3mu SWP on beams 1-2 only. the others are close dbeause they
are swamped with laser light.

MWC 275 (JHK 6.2 5.5 4.8). CRAPPY J band fringes ! in B1 B2 (BC2) !!!
Can't keep the fringes .. but we are going to take a little data for posterity.

we are using ~40micron opd amp..

champ 00009-> 10.

Trying a longer stroke mode and also at 500Hz to see if the fringes will stay put for tracking before trying MWC 275.

fringes look cleaner.. but still FAINT!!!

WE CANT SAVE DATA! it seems for this longer stroke the spooler is hanging the system.

more debugging is needed !!

now on MWC 275: we have very few counts .. at 500Hz on BC2 (w1-s2) , 6 counts ! (yes.. 6 counts). on the calibrator we had about 50 counts per channel. This does not look good.

Next up. v1295 Aql Calibrator.

1:19am

HD 187923 using 50 micron, 250Hz scanning.

Found 3 fringes but the others eluded us... That is IT for the 2011 CHAMP RUN.

*good things:

new PZTS work really well

new 1.3micron filter works

first J band fringes

tracked 4T for MIRC on mwc 361

software more robust

good cophasing with mirc and chara system -- well documented

*bad things:

couldn't track mwc 275 firnges -- saw 3 out of 5..

seeing did not cooperate at the end

tracking algorithms not optimal for super faint fringes (come and go)

stubborn software bugs (accum, saving large scans,

j band mwc 275 looked hopelessly weak

*to do:

check fluxes using the saved files. how far away are we from performance of climb? this is crucial to know what to focus on next run !

== MIRC high-res Engineering ==
'''2012Jun24 afternoon'''

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 5, # of frames: 350., frames per reset: 350.
We deinterlace routine in real time code so that it will read the top two quadrants as the mirc and PCs quadrants. On the python gui side,
nothing requires changing and everything looks exactly the same as before.

Note: under high-res mode, the # of rows should be 72 rows (in camera setting, it should be 72*2=144), but the integration time is 48ms
which is too long, so we reduced the # of rows to half, and the integration time is now 24ms.

Method: we move fringe to one of the edges as the beginning point, and then take 10 files. Then move 30/40 micron each step,
and take 10 files until the fringe reaches the other end. The relative offsets are saved in the header of each file.

Experiment 1 (LDC was in):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1220.4mm
file number: 83 - 142

Experiment 2(LDC was in):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1005mm
filen number: 168 - 242

'''2012Jun25 morning'''

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 4, # of frames: 350., frames per reset: 350.

Experiment 1 (LDC was out):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1222.8mm
file number: 864-923

Experiment 1 (LDC was out):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1007mm
filen number: 924 - 983

Engineering 2012MayJun

2012-06-25T13:14:11Z

192.153.157.220: /* MIRC high-res Engineering */

== Computer OSes ==

* May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.

* May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.

* May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)

* May 28: also upgraded lothlorien to ease work on CHAMP

== CHAMP -- hardware ==

* May 26: Larry started pumping CHAMP

* May 27: vacuum ~ 2e-3

* May 28: vacuum reached 1.0e-3, so not quite ready for pumping.

* May 29: CHAMP cool, pressure ~7e-7

* May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

== CHAMP -- software ==

* May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).

* May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".

* May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.

* May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.

* Jun 1-2 : been working on the aligment GUI, fixed many bugs, see
https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

* Jun 2-12: code for new pzts, cophasing with MIRC (see below).

* Jun 12: W1(B1)-W2(B2), ref= W1, delay line fringes W1: 2.200000m, W2: 2.007073, gain is +0.25 on B1B2 to track fringes.

Thresholding tests:

* lowering SLtoS threshold at 2-3 instead of 4 helps to not loose weak fringes.

== Final final cophasing of MIRC+CHAMP with CHARA ==

Work on June 10, 2012 (JDM/XC)

REFS: MIRC IR6 87750, CHAMP IR6 is not adjustable

BEAMS RETRO MIRC CHAMP

5&6 5.720 mm IR5: 55250 IR5: 136685

4&5 5.841 mm IR4: 84450 IR4: 146754

3&4 5.375 mm IR3: 58262 IR3: 155554

2&3 5.940 mm IR2: 77030 IR2: 171589

1&2 5.024 mm IR1: 68580 IR1: 179630

6&1 DL below ---- BC: 44300

DL: W1(B1)-W2(B6), W1:1.00000m, W2:1.222532m

Starting 5:07pm

Prep: Homing RETRO

----

'''BEAM 5-6'''

MIRC Quality Control checks

Beam 5: 66 cts peak / 732 cts, FWHM 7.6 mu (Fluxes here are xchan / fringe quad)

Beam 6: 51 cts peak / 642 cts, FWHM 7.1 mu

FRINGES (VIS~90%, very little dispersion):

ir5 67750, ir 6 87750, retro 4.723.

Goal: FIX IR6 87750, RETRO 5.720mm, adjust IR5: 55250 (CALIBRATION: 12.5 microns IR% per 10 microns of RETRO)

CHAMP alignment:

Beam5 image quality is great.

Beam5 R6 comment says "image clean" but actually two spots. I will choose bottom one (top one seems to lead to failure)

Beam6 L6 image looks very elongated... vignetting? ugh.

Looking for fringes...
FOUND: champ IR5 136685, RETRO 5.720

----

'''BEAM 4-5'''

MIRC Quality Control checck

Beam 4: 85 cts peak / 950 cts, FWHM 6.7 mu (Fluxes here are xchan / fringe quad)

Beam 5: 75 cts peak / 860 cts, FWHM 6.6 mu

Fringes (vis ~ 70%, detectable but small dispersion)!:
MIRC-IR4: 84450, RETRO 5.841

CHAMP Alignment:

Problems getting all spots to overlap. It hink the soluiont was to choose different spot for B5 R5...
champ ir4: 146754, RETRO 5.841

finished 6:45pm

----

'''BEAM 3-4'''

MIRC Quality Control checck

Beam 3: 130 cts peak / 1240 cts, FWHM 7.9 mu (Fluxes here are xchan / fringe quad)

Beam 4: 65 cts peak / 770 cts, FWHM 7.7 mu

FRINGES!: (VIS~60%, no obvious dispersion)
MIRC IR3: 58262 RETRO 5.375

CHAMP FRINGS:
CHAMP IR3: 155554 RETRO 5.375

----

'''BEAM 2-3'''

MIRC Quality Control checck

Beam 2: 110 cts peak / 1200 cts, FWHM 6.5 mu (Fluxes here are xchan / fringe quad)

Beam 3: 107 cts peak / 1180 cts, FWHM 7.5 mu

FRINGES!: (VIS~90%, most dispersion so far...)
MIRC IR2: 77030 RETRO 5.940

CHAMP FRINGE:
CHAMP IR2: 171589 RETRO 5.94

----

'''BEAM 1-2'''

MIRC Quality Control checck

Beam 1: 98 cts peak / 1250 cts, FWHM 6.9 mu (Fluxes here are xchan / fringe quad)

Beam 2: 113 cts peak / 1100 cts, FWHM 7.7 mu

FRINGES!: (VIS~85%, little dispersion....)
MIRC IR1: 68580 RETRO 5.024

CHAMP FRINGE:
CHAMP IR1: 179630 RETRO 5.94

----

'''BEAM 6-1'''

Delay line fringes on W1(B1)-W2(B6) with W1 at 1.000000 m and W2 at 1.222532 m.

MIRC IR1 68580, IR6 87750

CHAMP BC: 44300 (-1000 on BC is equivalent to +50 um on W2)

== Data Analysis ==

*UT2012Jun14

Looked at BEAM Ratios for MWC 361 on sky performance.

Beam order; W1 S2 S1 E1 E2 W2

Note that B2/S2 has the worst quality. B5/E2 is the best.

with a camera rate of 250Hz:

Based on shutters, approximately champ files 00081 to 0096

{|
| || B1 W1 || B2 S2 || B3 S1 || B4 E1 || B5 E2 || B6 W2
|-
|Total || 149.2 || 54.1 || 87.6 || 69.3 || 112.7 || 91.3
|-
|Li || 0.37 || '''0.28''' || '''0.28''' || 0.39 || 0.35 || 0.36
|-
|Ri || 0.23 || 0.27 || 0.23 || 0.24 || 0.33 || 0.25
|-
|Li+1 || 0.14 || 0.12 || '''0.06''' || 0.12 || '''0.05''' || 0.17
|-
|Ri+1 || 0.26 || 0.33 || '''0.44''' || 0.25 || 0.27 || 0.22
|}

(JDM)

based on these funny results on B3 especially we are looking carefully at engineering beam.
we arechecking flux ratios for beam 3 and image quality.

== Nightly Log ==

*UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

----
*UT June 14, 2012

goal track fringes with CHAMP.

problems: software accumulator for envelope was corrupted by a recent change. spent time tracking that down.

W1 telescope has constant tracking problems between 30-42 degrees or so. frustrating.

MIRC found fringes on one CAL but not on MWC 631 (except one cross fringe).

Now trying to get fringes on a new cal.

MWC361 had about 50 counts at 250Hz. but coudln't find fringes

problems with tracking W1 and S1.

12:15am

Now going to a cal that is closer to mwc 361: hd 205776

MIRC is tracking fringes fine. CHAMP found fringes for champ IR4: 147084 IR5: 136845. BC: 44660 IR1: 179550

GAINS: BC1 +0.25, BC2: -0.25 BC3: +0.25, BC4: -0.25, BC5: +0.25, BC6: -0.25

MIRC: 00291 champ 0004-005..
SHUTTERS: mirc 309->408

champ is taking data during shutters.. will have to sort this out! at 0006-> 0040 or something.

note: W1 was not tweaked at all so the fluxes will not be representative of performance except E2W2 were optimized.

hd 200775

W1 tracking fine above 41 m.

mirc is optimizing.

MIRC: S2 5.89 E1 2.38 E2 1.92 W1 1.25 W2 ref S1 XX

FT offsets: BC1 -.325 BC2 BC3 XX BC4 XX BC5 .209 BC6 .060

We found fringes between W2-W1, e1-e2, e2-w2.. but not for w1-s2.
We

We could never find S2-W1 fringes. not sure why. we found on calibrator but could not find on mwc 361.
probably too resolved !!

taking shutter sequence.. mirc data + champ (champ0081=>).

plan is to next re-optimize fluxes and search for fringes on mirc.

note -- signal on L2 was VERY WEAK.. maybe alignment?
beam 6 L1 also weak

maybe mwc 361 is resolved W1-S2 baseline... try another option?

Switching S1 <-> S2

back on sky. we changed pops too .

3:43am. peaking up on the

found fringes on cal.
found fringes on mwc361 but NOT S2-E1 .. no fringes again .
BC1: -0.756 BC2 XX BC3 XX BC4 (cal) -1.071 BC5 -0.023 BC6 0.227

but no S2-E1 fringes... mwc 361 fringes must be too weak for long baselines!

we took 250Hz data champ 0165-182 as a test to see if its better to go slower.
so we are taking more data at 125Hz. 70mu scans weres saturateda bout 3/4 of the way through on mwc361 (k=4.6) -- so not too practical.

(sorry these logs are bad -- but wiki logs suck and I am tired...!)

==

*UT June 15, 2012

cal: HD 156928. got fringes on mirc and champ -- cophased.

now trying mwc 275.

we got fringes easily on S1 S2. saw weak fringes on W2W1 and E2W2. (E1 was out of delay).

at 250Hz we had about 60-100 counts on each channel.

our algorithm did not 'see' or lock on the weak fringes. but maybe we can tweak the algorithm.

we tried 500Hz to see if the SNR improved. but seems ot have gotten worse. we no longer saw the weaker fringes.

tomorrow we will improve our fringe detedtion algorithm for intermiittant weak fringes in a way more like how classic/climb works.

we took some 500Hz data for later study on mwc 275 but .. it caused some odd display problems on ft gui so not sure if it saved properly.

*UT Jun 16 2012

using H pass dicroic for beams 1-2. using HK pass for beam 3-6 to allow test of J band mode.

HD 156928 (JHK 4.1 4.0 4.2): all 6 fringes !! CHAMP 0005->0007.

in file 8 we will do a by-hand shutter... BG.. B1 B2 B3 B4 B5 B6 ALL

NEXT we are putting j band bfilter and the 1.3mu SWP on beams 1-2 only. the others are close dbeause they
are swamped with laser light.

MWC 275 (JHK 6.2 5.5 4.8). CRAPPY J band fringes ! in B1 B2 (BC2) !!!
Can't keep the fringes .. but we are going to take a little data for posterity.

we are using ~40micron opd amp..

champ 00009-> 10.

Trying a longer stroke mode and also at 500Hz to see if the fringes will stay put for tracking before trying MWC 275.

fringes look cleaner.. but still FAINT!!!

WE CANT SAVE DATA! it seems for this longer stroke the spooler is hanging the system.

more debugging is needed !!

now on MWC 275: we have very few counts .. at 500Hz on BC2 (w1-s2) , 6 counts ! (yes.. 6 counts). on the calibrator we had about 50 counts per channel. This does not look good.

Next up. v1295 Aql Calibrator.

1:19am

HD 187923 using 50 micron, 250Hz scanning.

Found 3 fringes but the others eluded us... That is IT for the 2011 CHAMP RUN.

*good things:

new PZTS work really well

new 1.3micron filter works

first J band fringes

tracked 4T for MIRC on mwc 361

software more robust

good cophasing with mirc and chara system -- well documented

*bad things:

couldn't track mwc 275 firnges -- saw 3 out of 5..

seeing did not cooperate at the end

tracking algorithms not optimal for super faint fringes (come and go)

stubborn software bugs (accum, saving large scans,

j band mwc 275 looked hopelessly weak

*to do:

check fluxes using the saved files. how far away are we from performance of climb? this is crucial to know what to focus on next run !

== MIRC high-res Engineering ==
'''2012Jun24 afternoon'''

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 5, # of frames: 350., frames per reset: 350.
We deinterlace routine in real time code so that it will read the top two quadrants as the mirc and PCs quadrants. On the python gui side,
nothing requires changing and everything looks exactly the same as before.

Note: under high-res mode, the # of rows should be 72 rows (in camera setting, it should be 72*2=144), but the integration time is 48ms
which is too long, so we reduced the # of rows to half, and the integration time is now 24ms.

Method: we move fringe to one of the edges as the beginning point, and then take 10 files. Then move 30/40 micron each step,
and take 10 files until the fringe reaches the other end. The relative offsets are saved in the header of each file.

Experiment 1 (LDC was in):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1220.4mm
file number: 83 - 142

Experiment 2(LDC was in):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1005mm
filen number: 168 - 242

'''2012Jun25 morning'''
Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 4, # of frames: 350., frames per reset: 350.

Experiment 1 (LDC was out):
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1222.8mm
file number: 864-923

Engineering 2012MayJun

2012-06-25T03:25:55Z

192.153.157.220: /* MIRC high-res Engineering */

== Computer OSes ==

* May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.

* May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.

* May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)

* May 28: also upgraded lothlorien to ease work on CHAMP

== CHAMP -- hardware ==

* May 26: Larry started pumping CHAMP

* May 27: vacuum ~ 2e-3

* May 28: vacuum reached 1.0e-3, so not quite ready for pumping.

* May 29: CHAMP cool, pressure ~7e-7

* May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

== CHAMP -- software ==

* May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).

* May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".

* May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.

* May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.

* Jun 1-2 : been working on the aligment GUI, fixed many bugs, see
https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

* Jun 2-12: code for new pzts, cophasing with MIRC (see below).

* Jun 12: W1(B1)-W2(B2), ref= W1, delay line fringes W1: 2.200000m, W2: 2.007073, gain is +0.25 on B1B2 to track fringes.

Thresholding tests:

* lowering SLtoS threshold at 2-3 instead of 4 helps to not loose weak fringes.

== Final final cophasing of MIRC+CHAMP with CHARA ==

Work on June 10, 2012 (JDM/XC)

REFS: MIRC IR6 87750, CHAMP IR6 is not adjustable

BEAMS RETRO MIRC CHAMP

5&6 5.720 mm IR5: 55250 IR5: 136685

4&5 5.841 mm IR4: 84450 IR4: 146754

3&4 5.375 mm IR3: 58262 IR3: 155554

2&3 5.940 mm IR2: 77030 IR2: 171589

1&2 5.024 mm IR1: 68580 IR1: 179630

6&1 DL below ---- BC: 44300

DL: W1(B1)-W2(B6), W1:1.00000m, W2:1.222532m

Starting 5:07pm

Prep: Homing RETRO

----

'''BEAM 5-6'''

MIRC Quality Control checks

Beam 5: 66 cts peak / 732 cts, FWHM 7.6 mu (Fluxes here are xchan / fringe quad)

Beam 6: 51 cts peak / 642 cts, FWHM 7.1 mu

FRINGES (VIS~90%, very little dispersion):

ir5 67750, ir 6 87750, retro 4.723.

Goal: FIX IR6 87750, RETRO 5.720mm, adjust IR5: 55250 (CALIBRATION: 12.5 microns IR% per 10 microns of RETRO)

CHAMP alignment:

Beam5 image quality is great.

Beam5 R6 comment says "image clean" but actually two spots. I will choose bottom one (top one seems to lead to failure)

Beam6 L6 image looks very elongated... vignetting? ugh.

Looking for fringes...
FOUND: champ IR5 136685, RETRO 5.720

----

'''BEAM 4-5'''

MIRC Quality Control checck

Beam 4: 85 cts peak / 950 cts, FWHM 6.7 mu (Fluxes here are xchan / fringe quad)

Beam 5: 75 cts peak / 860 cts, FWHM 6.6 mu

Fringes (vis ~ 70%, detectable but small dispersion)!:
MIRC-IR4: 84450, RETRO 5.841

CHAMP Alignment:

Problems getting all spots to overlap. It hink the soluiont was to choose different spot for B5 R5...
champ ir4: 146754, RETRO 5.841

finished 6:45pm

----

'''BEAM 3-4'''

MIRC Quality Control checck

Beam 3: 130 cts peak / 1240 cts, FWHM 7.9 mu (Fluxes here are xchan / fringe quad)

Beam 4: 65 cts peak / 770 cts, FWHM 7.7 mu

FRINGES!: (VIS~60%, no obvious dispersion)
MIRC IR3: 58262 RETRO 5.375

CHAMP FRINGS:
CHAMP IR3: 155554 RETRO 5.375

----

'''BEAM 2-3'''

MIRC Quality Control checck

Beam 2: 110 cts peak / 1200 cts, FWHM 6.5 mu (Fluxes here are xchan / fringe quad)

Beam 3: 107 cts peak / 1180 cts, FWHM 7.5 mu

FRINGES!: (VIS~90%, most dispersion so far...)
MIRC IR2: 77030 RETRO 5.940

CHAMP FRINGE:
CHAMP IR2: 171589 RETRO 5.94

----

'''BEAM 1-2'''

MIRC Quality Control checck

Beam 1: 98 cts peak / 1250 cts, FWHM 6.9 mu (Fluxes here are xchan / fringe quad)

Beam 2: 113 cts peak / 1100 cts, FWHM 7.7 mu

FRINGES!: (VIS~85%, little dispersion....)
MIRC IR1: 68580 RETRO 5.024

CHAMP FRINGE:
CHAMP IR1: 179630 RETRO 5.94

----

'''BEAM 6-1'''

Delay line fringes on W1(B1)-W2(B6) with W1 at 1.000000 m and W2 at 1.222532 m.

MIRC IR1 68580, IR6 87750

CHAMP BC: 44300 (-1000 on BC is equivalent to +50 um on W2)

== Data Analysis ==

*UT2012Jun14

Looked at BEAM Ratios for MWC 361 on sky performance.

Beam order; W1 S2 S1 E1 E2 W2

Note that B2/S2 has the worst quality. B5/E2 is the best.

with a camera rate of 250Hz:

Based on shutters, approximately champ files 00081 to 0096

{|
| || B1 W1 || B2 S2 || B3 S1 || B4 E1 || B5 E2 || B6 W2
|-
|Total || 149.2 || 54.1 || 87.6 || 69.3 || 112.7 || 91.3
|-
|Li || 0.37 || '''0.28''' || '''0.28''' || 0.39 || 0.35 || 0.36
|-
|Ri || 0.23 || 0.27 || 0.23 || 0.24 || 0.33 || 0.25
|-
|Li+1 || 0.14 || 0.12 || '''0.06''' || 0.12 || '''0.05''' || 0.17
|-
|Ri+1 || 0.26 || 0.33 || '''0.44''' || 0.25 || 0.27 || 0.22
|}

(JDM)

based on these funny results on B3 especially we are looking carefully at engineering beam.
we arechecking flux ratios for beam 3 and image quality.

== Nightly Log ==

*UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

----
*UT June 14, 2012

goal track fringes with CHAMP.

problems: software accumulator for envelope was corrupted by a recent change. spent time tracking that down.

W1 telescope has constant tracking problems between 30-42 degrees or so. frustrating.

MIRC found fringes on one CAL but not on MWC 631 (except one cross fringe).

Now trying to get fringes on a new cal.

MWC361 had about 50 counts at 250Hz. but coudln't find fringes

problems with tracking W1 and S1.

12:15am

Now going to a cal that is closer to mwc 361: hd 205776

MIRC is tracking fringes fine. CHAMP found fringes for champ IR4: 147084 IR5: 136845. BC: 44660 IR1: 179550

GAINS: BC1 +0.25, BC2: -0.25 BC3: +0.25, BC4: -0.25, BC5: +0.25, BC6: -0.25

MIRC: 00291 champ 0004-005..
SHUTTERS: mirc 309->408

champ is taking data during shutters.. will have to sort this out! at 0006-> 0040 or something.

note: W1 was not tweaked at all so the fluxes will not be representative of performance except E2W2 were optimized.

hd 200775

W1 tracking fine above 41 m.

mirc is optimizing.

MIRC: S2 5.89 E1 2.38 E2 1.92 W1 1.25 W2 ref S1 XX

FT offsets: BC1 -.325 BC2 BC3 XX BC4 XX BC5 .209 BC6 .060

We found fringes between W2-W1, e1-e2, e2-w2.. but not for w1-s2.
We

We could never find S2-W1 fringes. not sure why. we found on calibrator but could not find on mwc 361.
probably too resolved !!

taking shutter sequence.. mirc data + champ (champ0081=>).

plan is to next re-optimize fluxes and search for fringes on mirc.

note -- signal on L2 was VERY WEAK.. maybe alignment?
beam 6 L1 also weak

maybe mwc 361 is resolved W1-S2 baseline... try another option?

Switching S1 <-> S2

back on sky. we changed pops too .

3:43am. peaking up on the

found fringes on cal.
found fringes on mwc361 but NOT S2-E1 .. no fringes again .
BC1: -0.756 BC2 XX BC3 XX BC4 (cal) -1.071 BC5 -0.023 BC6 0.227

but no S2-E1 fringes... mwc 361 fringes must be too weak for long baselines!

we took 250Hz data champ 0165-182 as a test to see if its better to go slower.
so we are taking more data at 125Hz. 70mu scans weres saturateda bout 3/4 of the way through on mwc361 (k=4.6) -- so not too practical.

(sorry these logs are bad -- but wiki logs suck and I am tired...!)

==

*UT June 15, 2012

cal: HD 156928. got fringes on mirc and champ -- cophased.

now trying mwc 275.

we got fringes easily on S1 S2. saw weak fringes on W2W1 and E2W2. (E1 was out of delay).

at 250Hz we had about 60-100 counts on each channel.

our algorithm did not 'see' or lock on the weak fringes. but maybe we can tweak the algorithm.

we tried 500Hz to see if the SNR improved. but seems ot have gotten worse. we no longer saw the weaker fringes.

tomorrow we will improve our fringe detedtion algorithm for intermiittant weak fringes in a way more like how classic/climb works.

we took some 500Hz data for later study on mwc 275 but .. it caused some odd display problems on ft gui so not sure if it saved properly.

*UT Jun 16 2012

using H pass dicroic for beams 1-2. using HK pass for beam 3-6 to allow test of J band mode.

HD 156928 (JHK 4.1 4.0 4.2): all 6 fringes !! CHAMP 0005->0007.

in file 8 we will do a by-hand shutter... BG.. B1 B2 B3 B4 B5 B6 ALL

NEXT we are putting j band bfilter and the 1.3mu SWP on beams 1-2 only. the others are close dbeause they
are swamped with laser light.

MWC 275 (JHK 6.2 5.5 4.8). CRAPPY J band fringes ! in B1 B2 (BC2) !!!
Can't keep the fringes .. but we are going to take a little data for posterity.

we are using ~40micron opd amp..

champ 00009-> 10.

Trying a longer stroke mode and also at 500Hz to see if the fringes will stay put for tracking before trying MWC 275.

fringes look cleaner.. but still FAINT!!!

WE CANT SAVE DATA! it seems for this longer stroke the spooler is hanging the system.

more debugging is needed !!

now on MWC 275: we have very few counts .. at 500Hz on BC2 (w1-s2) , 6 counts ! (yes.. 6 counts). on the calibrator we had about 50 counts per channel. This does not look good.

Next up. v1295 Aql Calibrator.

1:19am

HD 187923 using 50 micron, 250Hz scanning.

Found 3 fringes but the others eluded us... That is IT for the 2011 CHAMP RUN.

*good things:

new PZTS work really well

new 1.3micron filter works

first J band fringes

tracked 4T for MIRC on mwc 361

software more robust

good cophasing with mirc and chara system -- well documented

*bad things:

couldn't track mwc 275 firnges -- saw 3 out of 5..

seeing did not cooperate at the end

tracking algorithms not optimal for super faint fringes (come and go)

stubborn software bugs (accum, saving large scans,

j band mwc 275 looked hopelessly weak

*to do:

check fluxes using the saved files. how far away are we from performance of climb? this is crucial to know what to focus on next run !

== MIRC high-res Engineering ==
2012Jun25

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 5, # of frames: 350., frames per reset: 350.
We deinterlace routine in real time code so that it will read the top two quadrants as the mirc and PCs quadrants. On the python gui side,
nothing requires changing and everything looks exactly the same as before.

Note: under high-res mode, the # of rows should be 72 rows (in camera setting, it should be 72*2=144), but the integration time is 48ms
which is too long, so we reduced the # of rows to half, and the integration time is now 24ms.

Method: we move fringe to one of the edges as the beginning point, and then take 10 files. Then move 30 micron each step,
and take 10 files until the fringe reaches the other end.

Experiment 1:
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1220.4mm
file number: 83 - 142

Experiment 2:
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1005mm
filen number: 168 - 242

Engineering 2012MayJun

2012-06-25T02:27:52Z

192.153.157.220: /* MIRC high-res Engineering */

== Computer OSes ==

* May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.

* May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.

* May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)

* May 28: also upgraded lothlorien to ease work on CHAMP

== CHAMP -- hardware ==

* May 26: Larry started pumping CHAMP

* May 27: vacuum ~ 2e-3

* May 28: vacuum reached 1.0e-3, so not quite ready for pumping.

* May 29: CHAMP cool, pressure ~7e-7

* May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

== CHAMP -- software ==

* May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).

* May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".

* May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.

* May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.

* Jun 1-2 : been working on the aligment GUI, fixed many bugs, see
https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

* Jun 2-12: code for new pzts, cophasing with MIRC (see below).

* Jun 12: W1(B1)-W2(B2), ref= W1, delay line fringes W1: 2.200000m, W2: 2.007073, gain is +0.25 on B1B2 to track fringes.

Thresholding tests:

* lowering SLtoS threshold at 2-3 instead of 4 helps to not loose weak fringes.

== Final final cophasing of MIRC+CHAMP with CHARA ==

Work on June 10, 2012 (JDM/XC)

REFS: MIRC IR6 87750, CHAMP IR6 is not adjustable

BEAMS RETRO MIRC CHAMP

5&6 5.720 mm IR5: 55250 IR5: 136685

4&5 5.841 mm IR4: 84450 IR4: 146754

3&4 5.375 mm IR3: 58262 IR3: 155554

2&3 5.940 mm IR2: 77030 IR2: 171589

1&2 5.024 mm IR1: 68580 IR1: 179630

6&1 DL below ---- BC: 44300

DL: W1(B1)-W2(B6), W1:1.00000m, W2:1.222532m

Starting 5:07pm

Prep: Homing RETRO

----

'''BEAM 5-6'''

MIRC Quality Control checks

Beam 5: 66 cts peak / 732 cts, FWHM 7.6 mu (Fluxes here are xchan / fringe quad)

Beam 6: 51 cts peak / 642 cts, FWHM 7.1 mu

FRINGES (VIS~90%, very little dispersion):

ir5 67750, ir 6 87750, retro 4.723.

Goal: FIX IR6 87750, RETRO 5.720mm, adjust IR5: 55250 (CALIBRATION: 12.5 microns IR% per 10 microns of RETRO)

CHAMP alignment:

Beam5 image quality is great.

Beam5 R6 comment says "image clean" but actually two spots. I will choose bottom one (top one seems to lead to failure)

Beam6 L6 image looks very elongated... vignetting? ugh.

Looking for fringes...
FOUND: champ IR5 136685, RETRO 5.720

----

'''BEAM 4-5'''

MIRC Quality Control checck

Beam 4: 85 cts peak / 950 cts, FWHM 6.7 mu (Fluxes here are xchan / fringe quad)

Beam 5: 75 cts peak / 860 cts, FWHM 6.6 mu

Fringes (vis ~ 70%, detectable but small dispersion)!:
MIRC-IR4: 84450, RETRO 5.841

CHAMP Alignment:

Problems getting all spots to overlap. It hink the soluiont was to choose different spot for B5 R5...
champ ir4: 146754, RETRO 5.841

finished 6:45pm

----

'''BEAM 3-4'''

MIRC Quality Control checck

Beam 3: 130 cts peak / 1240 cts, FWHM 7.9 mu (Fluxes here are xchan / fringe quad)

Beam 4: 65 cts peak / 770 cts, FWHM 7.7 mu

FRINGES!: (VIS~60%, no obvious dispersion)
MIRC IR3: 58262 RETRO 5.375

CHAMP FRINGS:
CHAMP IR3: 155554 RETRO 5.375

----

'''BEAM 2-3'''

MIRC Quality Control checck

Beam 2: 110 cts peak / 1200 cts, FWHM 6.5 mu (Fluxes here are xchan / fringe quad)

Beam 3: 107 cts peak / 1180 cts, FWHM 7.5 mu

FRINGES!: (VIS~90%, most dispersion so far...)
MIRC IR2: 77030 RETRO 5.940

CHAMP FRINGE:
CHAMP IR2: 171589 RETRO 5.94

----

'''BEAM 1-2'''

MIRC Quality Control checck

Beam 1: 98 cts peak / 1250 cts, FWHM 6.9 mu (Fluxes here are xchan / fringe quad)

Beam 2: 113 cts peak / 1100 cts, FWHM 7.7 mu

FRINGES!: (VIS~85%, little dispersion....)
MIRC IR1: 68580 RETRO 5.024

CHAMP FRINGE:
CHAMP IR1: 179630 RETRO 5.94

----

'''BEAM 6-1'''

Delay line fringes on W1(B1)-W2(B6) with W1 at 1.000000 m and W2 at 1.222532 m.

MIRC IR1 68580, IR6 87750

CHAMP BC: 44300 (-1000 on BC is equivalent to +50 um on W2)

== Data Analysis ==

*UT2012Jun14

Looked at BEAM Ratios for MWC 361 on sky performance.

Beam order; W1 S2 S1 E1 E2 W2

Note that B2/S2 has the worst quality. B5/E2 is the best.

with a camera rate of 250Hz:

Based on shutters, approximately champ files 00081 to 0096

{|
| || B1 W1 || B2 S2 || B3 S1 || B4 E1 || B5 E2 || B6 W2
|-
|Total || 149.2 || 54.1 || 87.6 || 69.3 || 112.7 || 91.3
|-
|Li || 0.37 || '''0.28''' || '''0.28''' || 0.39 || 0.35 || 0.36
|-
|Ri || 0.23 || 0.27 || 0.23 || 0.24 || 0.33 || 0.25
|-
|Li+1 || 0.14 || 0.12 || '''0.06''' || 0.12 || '''0.05''' || 0.17
|-
|Ri+1 || 0.26 || 0.33 || '''0.44''' || 0.25 || 0.27 || 0.22
|}

(JDM)

based on these funny results on B3 especially we are looking carefully at engineering beam.
we arechecking flux ratios for beam 3 and image quality.

== Nightly Log ==

*UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

----
*UT June 14, 2012

goal track fringes with CHAMP.

problems: software accumulator for envelope was corrupted by a recent change. spent time tracking that down.

W1 telescope has constant tracking problems between 30-42 degrees or so. frustrating.

MIRC found fringes on one CAL but not on MWC 631 (except one cross fringe).

Now trying to get fringes on a new cal.

MWC361 had about 50 counts at 250Hz. but coudln't find fringes

problems with tracking W1 and S1.

12:15am

Now going to a cal that is closer to mwc 361: hd 205776

MIRC is tracking fringes fine. CHAMP found fringes for champ IR4: 147084 IR5: 136845. BC: 44660 IR1: 179550

GAINS: BC1 +0.25, BC2: -0.25 BC3: +0.25, BC4: -0.25, BC5: +0.25, BC6: -0.25

MIRC: 00291 champ 0004-005..
SHUTTERS: mirc 309->408

champ is taking data during shutters.. will have to sort this out! at 0006-> 0040 or something.

note: W1 was not tweaked at all so the fluxes will not be representative of performance except E2W2 were optimized.

hd 200775

W1 tracking fine above 41 m.

mirc is optimizing.

MIRC: S2 5.89 E1 2.38 E2 1.92 W1 1.25 W2 ref S1 XX

FT offsets: BC1 -.325 BC2 BC3 XX BC4 XX BC5 .209 BC6 .060

We found fringes between W2-W1, e1-e2, e2-w2.. but not for w1-s2.
We

We could never find S2-W1 fringes. not sure why. we found on calibrator but could not find on mwc 361.
probably too resolved !!

taking shutter sequence.. mirc data + champ (champ0081=>).

plan is to next re-optimize fluxes and search for fringes on mirc.

note -- signal on L2 was VERY WEAK.. maybe alignment?
beam 6 L1 also weak

maybe mwc 361 is resolved W1-S2 baseline... try another option?

Switching S1 <-> S2

back on sky. we changed pops too .

3:43am. peaking up on the

found fringes on cal.
found fringes on mwc361 but NOT S2-E1 .. no fringes again .
BC1: -0.756 BC2 XX BC3 XX BC4 (cal) -1.071 BC5 -0.023 BC6 0.227

but no S2-E1 fringes... mwc 361 fringes must be too weak for long baselines!

we took 250Hz data champ 0165-182 as a test to see if its better to go slower.
so we are taking more data at 125Hz. 70mu scans weres saturateda bout 3/4 of the way through on mwc361 (k=4.6) -- so not too practical.

(sorry these logs are bad -- but wiki logs suck and I am tired...!)

==

*UT June 15, 2012

cal: HD 156928. got fringes on mirc and champ -- cophased.

now trying mwc 275.

we got fringes easily on S1 S2. saw weak fringes on W2W1 and E2W2. (E1 was out of delay).

at 250Hz we had about 60-100 counts on each channel.

our algorithm did not 'see' or lock on the weak fringes. but maybe we can tweak the algorithm.

we tried 500Hz to see if the SNR improved. but seems ot have gotten worse. we no longer saw the weaker fringes.

tomorrow we will improve our fringe detedtion algorithm for intermiittant weak fringes in a way more like how classic/climb works.

we took some 500Hz data for later study on mwc 275 but .. it caused some odd display problems on ft gui so not sure if it saved properly.

*UT Jun 16 2012

using H pass dicroic for beams 1-2. using HK pass for beam 3-6 to allow test of J band mode.

HD 156928 (JHK 4.1 4.0 4.2): all 6 fringes !! CHAMP 0005->0007.

in file 8 we will do a by-hand shutter... BG.. B1 B2 B3 B4 B5 B6 ALL

NEXT we are putting j band bfilter and the 1.3mu SWP on beams 1-2 only. the others are close dbeause they
are swamped with laser light.

MWC 275 (JHK 6.2 5.5 4.8). CRAPPY J band fringes ! in B1 B2 (BC2) !!!
Can't keep the fringes .. but we are going to take a little data for posterity.

we are using ~40micron opd amp..

champ 00009-> 10.

Trying a longer stroke mode and also at 500Hz to see if the fringes will stay put for tracking before trying MWC 275.

fringes look cleaner.. but still FAINT!!!

WE CANT SAVE DATA! it seems for this longer stroke the spooler is hanging the system.

more debugging is needed !!

now on MWC 275: we have very few counts .. at 500Hz on BC2 (w1-s2) , 6 counts ! (yes.. 6 counts). on the calibrator we had about 50 counts per channel. This does not look good.

Next up. v1295 Aql Calibrator.

1:19am

HD 187923 using 50 micron, 250Hz scanning.

Found 3 fringes but the others eluded us... That is IT for the 2011 CHAMP RUN.

*good things:

new PZTS work really well

new 1.3micron filter works

first J band fringes

tracked 4T for MIRC on mwc 361

software more robust

good cophasing with mirc and chara system -- well documented

*bad things:

couldn't track mwc 275 firnges -- saw 3 out of 5..

seeing did not cooperate at the end

tracking algorithms not optimal for super faint fringes (come and go)

stubborn software bugs (accum, saving large scans,

j band mwc 275 looked hopelessly weak

*to do:

check fluxes using the saved files. how far away are we from performance of climb? this is crucial to know what to focus on next run !

== MIRC high-res Engineering ==
2012Jun25

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 5, # of frames: 350., frames per reset: 350.
We deinterlace routine in real time code so that it will read the top two quadrants as the mirc and PCs quadrants. On the python gui side,
nothing requires changing and everything looks exactly the same as before.

Note: under high-res mode, the # of rows should be 72 rows (in camera setting, it should be 72*2=144), but the integration time is 48ms
which is too long, so we reduced the # of rows to half, and the integration time is now 24ms.

Method: we move fringe to one of the edges as the beginning point, and then take 10 files. Then move 30 micron each step,
and take 10 files until the fringe reaches the other end.

Experiment 1:
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1220.4mm
file number: 83 - 142

Experiment 2:
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1200 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1005mm
filen number: 168 -

Engineering 2012MayJun

2012-06-25T01:41:53Z

192.153.157.220: /* MIRC high-res Engineering */

== Computer OSes ==

* May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.

* May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.

* May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)

* May 28: also upgraded lothlorien to ease work on CHAMP

== CHAMP -- hardware ==

* May 26: Larry started pumping CHAMP

* May 27: vacuum ~ 2e-3

* May 28: vacuum reached 1.0e-3, so not quite ready for pumping.

* May 29: CHAMP cool, pressure ~7e-7

* May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

== CHAMP -- software ==

* May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).

* May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".

* May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.

* May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.

* Jun 1-2 : been working on the aligment GUI, fixed many bugs, see
https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

* Jun 2-12: code for new pzts, cophasing with MIRC (see below).

* Jun 12: W1(B1)-W2(B2), ref= W1, delay line fringes W1: 2.200000m, W2: 2.007073, gain is +0.25 on B1B2 to track fringes.

Thresholding tests:

* lowering SLtoS threshold at 2-3 instead of 4 helps to not loose weak fringes.

== Final final cophasing of MIRC+CHAMP with CHARA ==

Work on June 10, 2012 (JDM/XC)

REFS: MIRC IR6 87750, CHAMP IR6 is not adjustable

BEAMS RETRO MIRC CHAMP

5&6 5.720 mm IR5: 55250 IR5: 136685

4&5 5.841 mm IR4: 84450 IR4: 146754

3&4 5.375 mm IR3: 58262 IR3: 155554

2&3 5.940 mm IR2: 77030 IR2: 171589

1&2 5.024 mm IR1: 68580 IR1: 179630

6&1 DL below ---- BC: 44300

DL: W1(B1)-W2(B6), W1:1.00000m, W2:1.222532m

Starting 5:07pm

Prep: Homing RETRO

----

'''BEAM 5-6'''

MIRC Quality Control checks

Beam 5: 66 cts peak / 732 cts, FWHM 7.6 mu (Fluxes here are xchan / fringe quad)

Beam 6: 51 cts peak / 642 cts, FWHM 7.1 mu

FRINGES (VIS~90%, very little dispersion):

ir5 67750, ir 6 87750, retro 4.723.

Goal: FIX IR6 87750, RETRO 5.720mm, adjust IR5: 55250 (CALIBRATION: 12.5 microns IR% per 10 microns of RETRO)

CHAMP alignment:

Beam5 image quality is great.

Beam5 R6 comment says "image clean" but actually two spots. I will choose bottom one (top one seems to lead to failure)

Beam6 L6 image looks very elongated... vignetting? ugh.

Looking for fringes...
FOUND: champ IR5 136685, RETRO 5.720

----

'''BEAM 4-5'''

MIRC Quality Control checck

Beam 4: 85 cts peak / 950 cts, FWHM 6.7 mu (Fluxes here are xchan / fringe quad)

Beam 5: 75 cts peak / 860 cts, FWHM 6.6 mu

Fringes (vis ~ 70%, detectable but small dispersion)!:
MIRC-IR4: 84450, RETRO 5.841

CHAMP Alignment:

Problems getting all spots to overlap. It hink the soluiont was to choose different spot for B5 R5...
champ ir4: 146754, RETRO 5.841

finished 6:45pm

----

'''BEAM 3-4'''

MIRC Quality Control checck

Beam 3: 130 cts peak / 1240 cts, FWHM 7.9 mu (Fluxes here are xchan / fringe quad)

Beam 4: 65 cts peak / 770 cts, FWHM 7.7 mu

FRINGES!: (VIS~60%, no obvious dispersion)
MIRC IR3: 58262 RETRO 5.375

CHAMP FRINGS:
CHAMP IR3: 155554 RETRO 5.375

----

'''BEAM 2-3'''

MIRC Quality Control checck

Beam 2: 110 cts peak / 1200 cts, FWHM 6.5 mu (Fluxes here are xchan / fringe quad)

Beam 3: 107 cts peak / 1180 cts, FWHM 7.5 mu

FRINGES!: (VIS~90%, most dispersion so far...)
MIRC IR2: 77030 RETRO 5.940

CHAMP FRINGE:
CHAMP IR2: 171589 RETRO 5.94

----

'''BEAM 1-2'''

MIRC Quality Control checck

Beam 1: 98 cts peak / 1250 cts, FWHM 6.9 mu (Fluxes here are xchan / fringe quad)

Beam 2: 113 cts peak / 1100 cts, FWHM 7.7 mu

FRINGES!: (VIS~85%, little dispersion....)
MIRC IR1: 68580 RETRO 5.024

CHAMP FRINGE:
CHAMP IR1: 179630 RETRO 5.94

----

'''BEAM 6-1'''

Delay line fringes on W1(B1)-W2(B6) with W1 at 1.000000 m and W2 at 1.222532 m.

MIRC IR1 68580, IR6 87750

CHAMP BC: 44300 (-1000 on BC is equivalent to +50 um on W2)

== Data Analysis ==

*UT2012Jun14

Looked at BEAM Ratios for MWC 361 on sky performance.

Beam order; W1 S2 S1 E1 E2 W2

Note that B2/S2 has the worst quality. B5/E2 is the best.

with a camera rate of 250Hz:

Based on shutters, approximately champ files 00081 to 0096

{|
| || B1 W1 || B2 S2 || B3 S1 || B4 E1 || B5 E2 || B6 W2
|-
|Total || 149.2 || 54.1 || 87.6 || 69.3 || 112.7 || 91.3
|-
|Li || 0.37 || '''0.28''' || '''0.28''' || 0.39 || 0.35 || 0.36
|-
|Ri || 0.23 || 0.27 || 0.23 || 0.24 || 0.33 || 0.25
|-
|Li+1 || 0.14 || 0.12 || '''0.06''' || 0.12 || '''0.05''' || 0.17
|-
|Ri+1 || 0.26 || 0.33 || '''0.44''' || 0.25 || 0.27 || 0.22
|}

(JDM)

based on these funny results on B3 especially we are looking carefully at engineering beam.
we arechecking flux ratios for beam 3 and image quality.

== Nightly Log ==

*UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

----
*UT June 14, 2012

goal track fringes with CHAMP.

problems: software accumulator for envelope was corrupted by a recent change. spent time tracking that down.

W1 telescope has constant tracking problems between 30-42 degrees or so. frustrating.

MIRC found fringes on one CAL but not on MWC 631 (except one cross fringe).

Now trying to get fringes on a new cal.

MWC361 had about 50 counts at 250Hz. but coudln't find fringes

problems with tracking W1 and S1.

12:15am

Now going to a cal that is closer to mwc 361: hd 205776

MIRC is tracking fringes fine. CHAMP found fringes for champ IR4: 147084 IR5: 136845. BC: 44660 IR1: 179550

GAINS: BC1 +0.25, BC2: -0.25 BC3: +0.25, BC4: -0.25, BC5: +0.25, BC6: -0.25

MIRC: 00291 champ 0004-005..
SHUTTERS: mirc 309->408

champ is taking data during shutters.. will have to sort this out! at 0006-> 0040 or something.

note: W1 was not tweaked at all so the fluxes will not be representative of performance except E2W2 were optimized.

hd 200775

W1 tracking fine above 41 m.

mirc is optimizing.

MIRC: S2 5.89 E1 2.38 E2 1.92 W1 1.25 W2 ref S1 XX

FT offsets: BC1 -.325 BC2 BC3 XX BC4 XX BC5 .209 BC6 .060

We found fringes between W2-W1, e1-e2, e2-w2.. but not for w1-s2.
We

We could never find S2-W1 fringes. not sure why. we found on calibrator but could not find on mwc 361.
probably too resolved !!

taking shutter sequence.. mirc data + champ (champ0081=>).

plan is to next re-optimize fluxes and search for fringes on mirc.

note -- signal on L2 was VERY WEAK.. maybe alignment?
beam 6 L1 also weak

maybe mwc 361 is resolved W1-S2 baseline... try another option?

Switching S1 <-> S2

back on sky. we changed pops too .

3:43am. peaking up on the

found fringes on cal.
found fringes on mwc361 but NOT S2-E1 .. no fringes again .
BC1: -0.756 BC2 XX BC3 XX BC4 (cal) -1.071 BC5 -0.023 BC6 0.227

but no S2-E1 fringes... mwc 361 fringes must be too weak for long baselines!

we took 250Hz data champ 0165-182 as a test to see if its better to go slower.
so we are taking more data at 125Hz. 70mu scans weres saturateda bout 3/4 of the way through on mwc361 (k=4.6) -- so not too practical.

(sorry these logs are bad -- but wiki logs suck and I am tired...!)

==

*UT June 15, 2012

cal: HD 156928. got fringes on mirc and champ -- cophased.

now trying mwc 275.

we got fringes easily on S1 S2. saw weak fringes on W2W1 and E2W2. (E1 was out of delay).

at 250Hz we had about 60-100 counts on each channel.

our algorithm did not 'see' or lock on the weak fringes. but maybe we can tweak the algorithm.

we tried 500Hz to see if the SNR improved. but seems ot have gotten worse. we no longer saw the weaker fringes.

tomorrow we will improve our fringe detedtion algorithm for intermiittant weak fringes in a way more like how classic/climb works.

we took some 500Hz data for later study on mwc 275 but .. it caused some odd display problems on ft gui so not sure if it saved properly.

*UT Jun 16 2012

using H pass dicroic for beams 1-2. using HK pass for beam 3-6 to allow test of J band mode.

HD 156928 (JHK 4.1 4.0 4.2): all 6 fringes !! CHAMP 0005->0007.

in file 8 we will do a by-hand shutter... BG.. B1 B2 B3 B4 B5 B6 ALL

NEXT we are putting j band bfilter and the 1.3mu SWP on beams 1-2 only. the others are close dbeause they
are swamped with laser light.

MWC 275 (JHK 6.2 5.5 4.8). CRAPPY J band fringes ! in B1 B2 (BC2) !!!
Can't keep the fringes .. but we are going to take a little data for posterity.

we are using ~40micron opd amp..

champ 00009-> 10.

Trying a longer stroke mode and also at 500Hz to see if the fringes will stay put for tracking before trying MWC 275.

fringes look cleaner.. but still FAINT!!!

WE CANT SAVE DATA! it seems for this longer stroke the spooler is hanging the system.

more debugging is needed !!

now on MWC 275: we have very few counts .. at 500Hz on BC2 (w1-s2) , 6 counts ! (yes.. 6 counts). on the calibrator we had about 50 counts per channel. This does not look good.

Next up. v1295 Aql Calibrator.

1:19am

HD 187923 using 50 micron, 250Hz scanning.

Found 3 fringes but the others eluded us... That is IT for the 2011 CHAMP RUN.

*good things:

new PZTS work really well

new 1.3micron filter works

first J band fringes

tracked 4T for MIRC on mwc 361

software more robust

good cophasing with mirc and chara system -- well documented

*bad things:

couldn't track mwc 275 firnges -- saw 3 out of 5..

seeing did not cooperate at the end

tracking algorithms not optimal for super faint fringes (come and go)

stubborn software bugs (accum, saving large scans,

j band mwc 275 looked hopelessly weak

*to do:

check fluxes using the saved files. how far away are we from performance of climb? this is crucial to know what to focus on next run !

== MIRC high-res Engineering ==
2012Jun25

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 5, # of frames: 350., frames per reset: 350.
We deinterlace routine in real time code so that it will read the top two quadrants as the mirc and PCs quadrants. On the python gui side,
nothing requires changing and everything looks exactly the same as before.

Note: under high-res mode, the # of rows should be 72 rows (in camera setting, it should be 72*2=144), but the integration time is 48ms
which is too long, so we reduced the # of rows to half, and the integration time is now 24ms.

Method: we move fringe to one of the edges as the beginning point, and then take 10 files. Then move 30 micron each step,
and take 10 files until the fringe reaches the other end.

Experiment 1:
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 6), ealing: 87750, delay line offsets on MIRC gui: 1220.4mm
file number: 83 - 142

Experiment 2:
W1 (beam 1), ealing: 68580, delay line offsets on MIRC gui: 1000 mm
W2 (beam 2), ealing: 77030, delay line offsets on MIRC gui: 1220.4mm

Engineering 2012MayJun

2012-06-25T01:26:53Z

192.153.157.220:

== Computer OSes ==

* May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.

* May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.

* May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)

* May 28: also upgraded lothlorien to ease work on CHAMP

== CHAMP -- hardware ==

* May 26: Larry started pumping CHAMP

* May 27: vacuum ~ 2e-3

* May 28: vacuum reached 1.0e-3, so not quite ready for pumping.

* May 29: CHAMP cool, pressure ~7e-7

* May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

== CHAMP -- software ==

* May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).

* May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".

* May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.

* May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.

* Jun 1-2 : been working on the aligment GUI, fixed many bugs, see
https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

* Jun 2-12: code for new pzts, cophasing with MIRC (see below).

* Jun 12: W1(B1)-W2(B2), ref= W1, delay line fringes W1: 2.200000m, W2: 2.007073, gain is +0.25 on B1B2 to track fringes.

Thresholding tests:

* lowering SLtoS threshold at 2-3 instead of 4 helps to not loose weak fringes.

== Final final cophasing of MIRC+CHAMP with CHARA ==

Work on June 10, 2012 (JDM/XC)

REFS: MIRC IR6 87750, CHAMP IR6 is not adjustable

BEAMS RETRO MIRC CHAMP

5&6 5.720 mm IR5: 55250 IR5: 136685

4&5 5.841 mm IR4: 84450 IR4: 146754

3&4 5.375 mm IR3: 58262 IR3: 155554

2&3 5.940 mm IR2: 77030 IR2: 171589

1&2 5.024 mm IR1: 68580 IR1: 179630

6&1 DL below ---- BC: 44300

DL: W1(B1)-W2(B6), W1:1.00000m, W2:1.222532m

Starting 5:07pm

Prep: Homing RETRO

----

'''BEAM 5-6'''

MIRC Quality Control checks

Beam 5: 66 cts peak / 732 cts, FWHM 7.6 mu (Fluxes here are xchan / fringe quad)

Beam 6: 51 cts peak / 642 cts, FWHM 7.1 mu

FRINGES (VIS~90%, very little dispersion):

ir5 67750, ir 6 87750, retro 4.723.

Goal: FIX IR6 87750, RETRO 5.720mm, adjust IR5: 55250 (CALIBRATION: 12.5 microns IR% per 10 microns of RETRO)

CHAMP alignment:

Beam5 image quality is great.

Beam5 R6 comment says "image clean" but actually two spots. I will choose bottom one (top one seems to lead to failure)

Beam6 L6 image looks very elongated... vignetting? ugh.

Looking for fringes...
FOUND: champ IR5 136685, RETRO 5.720

----

'''BEAM 4-5'''

MIRC Quality Control checck

Beam 4: 85 cts peak / 950 cts, FWHM 6.7 mu (Fluxes here are xchan / fringe quad)

Beam 5: 75 cts peak / 860 cts, FWHM 6.6 mu

Fringes (vis ~ 70%, detectable but small dispersion)!:
MIRC-IR4: 84450, RETRO 5.841

CHAMP Alignment:

Problems getting all spots to overlap. It hink the soluiont was to choose different spot for B5 R5...
champ ir4: 146754, RETRO 5.841

finished 6:45pm

----

'''BEAM 3-4'''

MIRC Quality Control checck

Beam 3: 130 cts peak / 1240 cts, FWHM 7.9 mu (Fluxes here are xchan / fringe quad)

Beam 4: 65 cts peak / 770 cts, FWHM 7.7 mu

FRINGES!: (VIS~60%, no obvious dispersion)
MIRC IR3: 58262 RETRO 5.375

CHAMP FRINGS:
CHAMP IR3: 155554 RETRO 5.375

----

'''BEAM 2-3'''

MIRC Quality Control checck

Beam 2: 110 cts peak / 1200 cts, FWHM 6.5 mu (Fluxes here are xchan / fringe quad)

Beam 3: 107 cts peak / 1180 cts, FWHM 7.5 mu

FRINGES!: (VIS~90%, most dispersion so far...)
MIRC IR2: 77030 RETRO 5.940

CHAMP FRINGE:
CHAMP IR2: 171589 RETRO 5.94

----

'''BEAM 1-2'''

MIRC Quality Control checck

Beam 1: 98 cts peak / 1250 cts, FWHM 6.9 mu (Fluxes here are xchan / fringe quad)

Beam 2: 113 cts peak / 1100 cts, FWHM 7.7 mu

FRINGES!: (VIS~85%, little dispersion....)
MIRC IR1: 68580 RETRO 5.024

CHAMP FRINGE:
CHAMP IR1: 179630 RETRO 5.94

----

'''BEAM 6-1'''

Delay line fringes on W1(B1)-W2(B6) with W1 at 1.000000 m and W2 at 1.222532 m.

MIRC IR1 68580, IR6 87750

CHAMP BC: 44300 (-1000 on BC is equivalent to +50 um on W2)

== Data Analysis ==

*UT2012Jun14

Looked at BEAM Ratios for MWC 361 on sky performance.

Beam order; W1 S2 S1 E1 E2 W2

Note that B2/S2 has the worst quality. B5/E2 is the best.

with a camera rate of 250Hz:

Based on shutters, approximately champ files 00081 to 0096

{|
| || B1 W1 || B2 S2 || B3 S1 || B4 E1 || B5 E2 || B6 W2
|-
|Total || 149.2 || 54.1 || 87.6 || 69.3 || 112.7 || 91.3
|-
|Li || 0.37 || '''0.28''' || '''0.28''' || 0.39 || 0.35 || 0.36
|-
|Ri || 0.23 || 0.27 || 0.23 || 0.24 || 0.33 || 0.25
|-
|Li+1 || 0.14 || 0.12 || '''0.06''' || 0.12 || '''0.05''' || 0.17
|-
|Ri+1 || 0.26 || 0.33 || '''0.44''' || 0.25 || 0.27 || 0.22
|}

(JDM)

based on these funny results on B3 especially we are looking carefully at engineering beam.
we arechecking flux ratios for beam 3 and image quality.

== Nightly Log ==

*UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

----
*UT June 14, 2012

goal track fringes with CHAMP.

problems: software accumulator for envelope was corrupted by a recent change. spent time tracking that down.

W1 telescope has constant tracking problems between 30-42 degrees or so. frustrating.

MIRC found fringes on one CAL but not on MWC 631 (except one cross fringe).

Now trying to get fringes on a new cal.

MWC361 had about 50 counts at 250Hz. but coudln't find fringes

problems with tracking W1 and S1.

12:15am

Now going to a cal that is closer to mwc 361: hd 205776

MIRC is tracking fringes fine. CHAMP found fringes for champ IR4: 147084 IR5: 136845. BC: 44660 IR1: 179550

GAINS: BC1 +0.25, BC2: -0.25 BC3: +0.25, BC4: -0.25, BC5: +0.25, BC6: -0.25

MIRC: 00291 champ 0004-005..
SHUTTERS: mirc 309->408

champ is taking data during shutters.. will have to sort this out! at 0006-> 0040 or something.

note: W1 was not tweaked at all so the fluxes will not be representative of performance except E2W2 were optimized.

hd 200775

W1 tracking fine above 41 m.

mirc is optimizing.

MIRC: S2 5.89 E1 2.38 E2 1.92 W1 1.25 W2 ref S1 XX

FT offsets: BC1 -.325 BC2 BC3 XX BC4 XX BC5 .209 BC6 .060

We found fringes between W2-W1, e1-e2, e2-w2.. but not for w1-s2.
We

We could never find S2-W1 fringes. not sure why. we found on calibrator but could not find on mwc 361.
probably too resolved !!

taking shutter sequence.. mirc data + champ (champ0081=>).

plan is to next re-optimize fluxes and search for fringes on mirc.

note -- signal on L2 was VERY WEAK.. maybe alignment?
beam 6 L1 also weak

maybe mwc 361 is resolved W1-S2 baseline... try another option?

Switching S1 <-> S2

back on sky. we changed pops too .

3:43am. peaking up on the

found fringes on cal.
found fringes on mwc361 but NOT S2-E1 .. no fringes again .
BC1: -0.756 BC2 XX BC3 XX BC4 (cal) -1.071 BC5 -0.023 BC6 0.227

but no S2-E1 fringes... mwc 361 fringes must be too weak for long baselines!

we took 250Hz data champ 0165-182 as a test to see if its better to go slower.
so we are taking more data at 125Hz. 70mu scans weres saturateda bout 3/4 of the way through on mwc361 (k=4.6) -- so not too practical.

(sorry these logs are bad -- but wiki logs suck and I am tired...!)

==

*UT June 15, 2012

cal: HD 156928. got fringes on mirc and champ -- cophased.

now trying mwc 275.

we got fringes easily on S1 S2. saw weak fringes on W2W1 and E2W2. (E1 was out of delay).

at 250Hz we had about 60-100 counts on each channel.

our algorithm did not 'see' or lock on the weak fringes. but maybe we can tweak the algorithm.

we tried 500Hz to see if the SNR improved. but seems ot have gotten worse. we no longer saw the weaker fringes.

tomorrow we will improve our fringe detedtion algorithm for intermiittant weak fringes in a way more like how classic/climb works.

we took some 500Hz data for later study on mwc 275 but .. it caused some odd display problems on ft gui so not sure if it saved properly.

*UT Jun 16 2012

using H pass dicroic for beams 1-2. using HK pass for beam 3-6 to allow test of J band mode.

HD 156928 (JHK 4.1 4.0 4.2): all 6 fringes !! CHAMP 0005->0007.

in file 8 we will do a by-hand shutter... BG.. B1 B2 B3 B4 B5 B6 ALL

NEXT we are putting j band bfilter and the 1.3mu SWP on beams 1-2 only. the others are close dbeause they
are swamped with laser light.

MWC 275 (JHK 6.2 5.5 4.8). CRAPPY J band fringes ! in B1 B2 (BC2) !!!
Can't keep the fringes .. but we are going to take a little data for posterity.

we are using ~40micron opd amp..

champ 00009-> 10.

Trying a longer stroke mode and also at 500Hz to see if the fringes will stay put for tracking before trying MWC 275.

fringes look cleaner.. but still FAINT!!!

WE CANT SAVE DATA! it seems for this longer stroke the spooler is hanging the system.

more debugging is needed !!

now on MWC 275: we have very few counts .. at 500Hz on BC2 (w1-s2) , 6 counts ! (yes.. 6 counts). on the calibrator we had about 50 counts per channel. This does not look good.

Next up. v1295 Aql Calibrator.

1:19am

HD 187923 using 50 micron, 250Hz scanning.

Found 3 fringes but the others eluded us... That is IT for the 2011 CHAMP RUN.

*good things:

new PZTS work really well

new 1.3micron filter works

first J band fringes

tracked 4T for MIRC on mwc 361

software more robust

good cophasing with mirc and chara system -- well documented

*bad things:

couldn't track mwc 275 firnges -- saw 3 out of 5..

seeing did not cooperate at the end

tracking algorithms not optimal for super faint fringes (come and go)

stubborn software bugs (accum, saving large scans,

j band mwc 275 looked hopelessly weak

*to do:

check fluxes using the saved files. how far away are we from performance of climb? this is crucial to know what to focus on next run !

== MIRC high-res Engineering ==
2012Jun25

Camera setting: rows: 72, cols: 252, row off: 69, col off: 2, Nreads: 5, # of frames: 350., frames per reset: 350.
We deinterlace routine in real time code so that it will read the top two quadrants as the mirc and PCs quadrants. On the python gui side,
nothing requires changing and everything looks exactly the same as before.

Note: under high-res mode, the # of rows should be 72 rows (in camera setting, it should be 72*2=144), but the integration time is 48ms
which is too long, so we reduced the # of rows to half, and the integration time is now 24ms.

Engineering 2012MayJun

2012-06-16T07:17:42Z

192.153.157.220: /* Nightly Log */

CHAMP:Manual

2012-06-16T02:13:08Z

192.153.157.220: /* Internal fringes with delaylines */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file before the June 2012 alignment [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4, W1 2.2000, W2 2.0079

15 July 2011: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222642 m.

B6/B1. W1 2.0000, W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

11 June 2012: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222525 m.
Ealing IR1 68580
Ealing IR6 87750

15 June 2012: W1(B1)-W2(B2) 2.200000m and 2.0079, offset was -1.1 mm

=== J band experiment ===

Adding Michigan shortpass filter 1.3 um, counts 80 -> 50 (white light on ND 1 + metrology)

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012 row 7 col 18

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || bottom spot
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-16T00:04:48Z

192.153.157.220: /* Internal fringes with delaylines */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file before the June 2012 alignment [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4, W1 2.2000, W2 2.0079

15 July 2011: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222642 m.

B6/B1. W1 2.0000, W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

11 June 2012: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222525 m.
Ealing IR1 68580
Ealing IR6 87750

15 June 2012: W1(B1)-W2(B2) 2.200000m and 2.0079, offset was -1.1 mm

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012 row 7 col 18

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || bottom spot
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-14T03:39:01Z

192.153.157.220: /* Internal fringes with retros */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file before the June 2012 alignment [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4, W1 2.2000, W2 2.0079

15 July 2011: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222642 m.

B6/B1. W1 2.0000, W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

11 June 2012: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222525 m.
Ealing IR1 68580
Ealing IR6 87750

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012 row 7 col 18

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || bottom spot
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

Engineering 2012MayJun

2012-06-12T23:00:50Z

192.153.157.220: /* CHAMP -- software */

Engineering 2012MayJun

2012-06-12T22:25:08Z

192.153.157.220: /* CHAMP -- software */

Engineering 2012MayJun

2012-06-12T02:33:04Z

192.153.157.220: /* Final final cophasing of MIRC+CHAMP with CHARA */

Engineering 2012MayJun

2012-06-12T02:32:03Z

192.153.157.220: /* Final final cophasing of MIRC+CHAMP with CHARA */

Engineering 2012MayJun

2012-06-12T02:29:05Z

192.153.157.220: /* Final final cophasing of MIRC+CHAMP with CHARA */

Engineering 2012MayJun

2012-06-12T02:28:22Z

192.153.157.220: /* Final final cophasing of MIRC+CHAMP with CHARA */

Engineering 2012MayJun

2012-06-12T02:02:09Z

192.153.157.220: /* Final final cophasing of MIRC+CHAMP with CHARA */

Engineering 2012MayJun

2012-06-12T01:27:49Z

192.153.157.220: /* Final final cophasing of MIRC+CHAMP with CHARA */

CHAMP:Manual

2012-06-12T00:57:57Z

192.153.157.220: /* Internal fringes with delaylines */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4, W1 2.2000, W2 2.0079

15 July 2011: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222642 m.

B6/B1. W1 2.0000, W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

11 June 2012: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222525 m.
Ealing IR1 68580
Ealing IR6 87750

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012 row 7 col 18

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || bottom spot
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

Screenshots of MIRC and CHAMP guis

2012-06-11T08:31:55Z

192.153.157.220: /* CHAMP */

=== MIRC ===

[[Media:gdt.png]]

[[Media:mirc_fringes.png]]

[[Media:fiberexplorer.png]]

=== CHAMP ===

[[Media:Screenshot1.png]]

[[Media:Screenshot2.png]]

[[Media:Screenshot3.png]]

[[Media:Screenshot4.png]]

CHAMP:Snapshots

2012-06-11T07:35:35Z

192.153.157.220: /* Deprecated code */

== CHAMP GUI Code ==

[[Media:CHAMP11Jun2012.tar.gz]] : Snapshot from 11 June 2012

== CHAMP server/spooler/modtrig code ==

[[Media:CHAMP25April2011champ.tar.gz]] : Snapshot from 25 April 2011

------------------------------------------------

== Deprecated code ==

GUI code:

[[Media:CHAMP22Jul2011.tar.gz]]

[[Media:CHAMP26May2011.tar.gz]] : Snapshot from 26 May 2011

[[Media:CHAMP22May2011.tar.gz]] : Snapshot from 22 May 2011

[[Media:CHAMP19May2011.tar.gz]] : Snapshot from 19 May 2011

[[Media:CHAMP2May2011.tar.gz]] : Snapshot from 2 May 2011

[[Media:CHAMP28April2011.tar.gz]] : Snapshot from 28 April 2011

[[Media:CHAMP25April2011.tar.gz]] : Snapshot from 25 April 2011

'''Snapshot from 03 June 2010''' - Start of the engineering run

[[Media:snapshot1.tar.gz]]

'''Snapshot from 17 June 2010''' - End of the engineering run

Phase tracking -- improved by adding dewarp matrix.

GDT by cross-spectrum -- needs tweaking for non equispaced opds.

GDT by correlation -- does not work yet.

[[Media:snapshot2.tar.gz]]

'''Snapshot from 07 August 2010''' - Middle of August engineering run.

Bug fixes to astropci; New CHAMPoffset Motor tool (part of Pixel_Pico).

[[Media:2010Aug7.wolverine.devel.CHAMP.tar.gz]]

--------

'''Snapshot from 2010 Aug 09'''

[[Media:2010Aug08.wolverine.champ.tgz]] Champ gui improvements, pixel pico (calibrated dicroics, champ offsets)

[[Media:2010Aug08.champ.user.tgz]] Champ realtime improvments. lots of things. tested dewarp, gdt.

--------

'''Snapshot from 2010 Oct 10'''

[[Media:2010Oct10.wolverine.devel.CHAMP.tar.gz]] State after engineering run; changes in Pixel_Pico (adjusted signs for alignment procedure) and champGui (bug fixes, Flux-vs-t plot added)

[[Media:2010Oct10.champ.champdev.user.tar.gz]] State after engineering run; changes in astropci, e.g. for champGui-communication

CHAMP:Snapshots

2012-06-11T07:35:10Z

192.153.157.220: /* CHAMP GUI Code */

== CHAMP GUI Code ==

[[Media:CHAMP11Jun2012.tar.gz]] : Snapshot from 11 June 2012

== CHAMP server/spooler/modtrig code ==

[[Media:CHAMP25April2011champ.tar.gz]] : Snapshot from 25 April 2011

------------------------------------------------

== Deprecated code ==

GUI code:

[[Media:CHAMP26May2011.tar.gz]] : Snapshot from 26 May 2011

[[Media:CHAMP22May2011.tar.gz]] : Snapshot from 22 May 2011

[[Media:CHAMP19May2011.tar.gz]] : Snapshot from 19 May 2011

[[Media:CHAMP2May2011.tar.gz]] : Snapshot from 2 May 2011

[[Media:CHAMP28April2011.tar.gz]] : Snapshot from 28 April 2011

[[Media:CHAMP25April2011.tar.gz]] : Snapshot from 25 April 2011

'''Snapshot from 03 June 2010''' - Start of the engineering run

[[Media:snapshot1.tar.gz]]

'''Snapshot from 17 June 2010''' - End of the engineering run

Phase tracking -- improved by adding dewarp matrix.

GDT by cross-spectrum -- needs tweaking for non equispaced opds.

GDT by correlation -- does not work yet.

[[Media:snapshot2.tar.gz]]

'''Snapshot from 07 August 2010''' - Middle of August engineering run.

Bug fixes to astropci; New CHAMPoffset Motor tool (part of Pixel_Pico).

[[Media:2010Aug7.wolverine.devel.CHAMP.tar.gz]]

--------

'''Snapshot from 2010 Aug 09'''

[[Media:2010Aug08.wolverine.champ.tgz]] Champ gui improvements, pixel pico (calibrated dicroics, champ offsets)

[[Media:2010Aug08.champ.user.tgz]] Champ realtime improvments. lots of things. tested dewarp, gdt.

--------

'''Snapshot from 2010 Oct 10'''

[[Media:2010Oct10.wolverine.devel.CHAMP.tar.gz]] State after engineering run; changes in Pixel_Pico (adjusted signs for alignment procedure) and champGui (bug fixes, Flux-vs-t plot added)

[[Media:2010Oct10.champ.champdev.user.tar.gz]] State after engineering run; changes in astropci, e.g. for champGui-communication

Engineering 2012MayJun

2012-06-11T04:05:37Z

192.153.157.220:

CHAMP:Manual

2012-06-11T00:40:19Z

192.153.157.220: /* Shutters, spot pico ordering for alignment */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4, W1 2.2000, W2 2.0079

15 July 2011: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222642 m.

B6/B1. W1 2.0000, W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012 row 7 col 18

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || bottom spot
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

Engineering 2012MayJun

2012-06-10T23:02:47Z

192.153.157.220:

MIRC:INFO

2012-06-10T21:24:54Z

192.153.157.220:

Reference Documents:

[[Media:Running_MIRC6.txt]]: '''This is the great startup document from the desktop (as of 2012June)'''

[[Media:Mirc_spie2004.pdf]]: Original MIRC paper for SPIE 2004 (a bit out of date now)

[[Media:Mirc_spie2006.pdf]]: MIRC Commissioning Report for SPIE 2006

[[Media:Observe_with_MIRC.txt]]: Basic Directions for Observing with MIRC

[[Media:AlignChara.pdf]]: Directions how to align MIRC and CHARA (ndt)

[[Media:mirc_grism_setup_gail.rtf]]: Another set of directions of setting up grism (gs)

[[Media:NewFilterMirc.pdf]]: HOWTO change MIRC's spectral mode (ndt)

[[Media:Format_backup.txt]]: HOWTO format hard drives for data backup (ep)

[[Media:MIRC_logsheet.pdf]]: MIRC4 Logsheet

[[Media:MIRC6_logsheet.pdf]]: MIRC6 Logsheet

[[Media:MIRC_observation_form.docx]]: MIRC6 Logsheet docx file

[[Media:MIRC_slit_alignment.txt]]: MIRC Alignment: slit, cylindrical lens, and photometric outputs

[[Media:mirc_shutdownmemo.rtf]]: Memo with reminders of all shutdown steps

[[Switch to prism mode]]

[[Switch to grism mode]]

MIRC:INFO

2012-06-10T21:24:32Z

192.153.157.220:

Reference Documents:
[[Media:Running_MIRC6.txt]]: This is the great startup document from the desktop (as of 2012June)

[[Media:Mirc_spie2004.pdf]]: Original MIRC paper for SPIE 2004 (a bit out of date now)

[[Media:Mirc_spie2006.pdf]]: MIRC Commissioning Report for SPIE 2006

[[Media:Observe_with_MIRC.txt]]: Basic Directions for Observing with MIRC

[[Media:AlignChara.pdf]]: Directions how to align MIRC and CHARA (ndt)

[[Media:mirc_grism_setup_gail.rtf]]: Another set of directions of setting up grism (gs)

[[Media:NewFilterMirc.pdf]]: HOWTO change MIRC's spectral mode (ndt)

[[Media:Format_backup.txt]]: HOWTO format hard drives for data backup (ep)

[[Media:MIRC_logsheet.pdf]]: MIRC4 Logsheet

[[Media:MIRC6_logsheet.pdf]]: MIRC6 Logsheet

[[Media:MIRC_observation_form.docx]]: MIRC6 Logsheet docx file

[[Media:MIRC_slit_alignment.txt]]: MIRC Alignment: slit, cylindrical lens, and photometric outputs

[[Media:mirc_shutdownmemo.rtf]]: Memo with reminders of all shutdown steps

[[Switch to prism mode]]

[[Switch to grism mode]]

CHAMP:Manual

2012-06-10T21:02:37Z

192.153.157.220: /* Setting up camera to align spots */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4, W1 2.2000, W2 2.0079

15 July 2011: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222642 m.

B6/B1. W1 2.0000, W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012 row 7 col 18

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-10T21:01:56Z

192.153.157.220: /* Internal fringes with delaylines */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4, W1 2.2000, W2 2.0079

15 July 2011: fringes on W1(B1)-W2(B6) on MIRC, with W1 at 1.000000 m and W2 at 1.222642 m.

B6/B1. W1 2.0000, W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-10T21:01:16Z

192.153.157.220: /* Internal fringes with retros */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4

W1 2.2000

W2 2.0079

B6/B1

W1 2.0000

W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-10T21:01:00Z

192.153.157.220: /* Internal fringes with retros */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

On 15 July 2011, got fringes on W1(B1)-W2(B6) on mirc, with W1 at 1.000000 m and W2 at 1.222642 m.

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4

W1 2.2000

W2 2.0079

B6/B1

W1 2.0000

W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

Engineering 2011AprMay

2012-06-10T20:50:35Z

192.153.157.220: /* 2011 April 29 */

[[2011MayJDMDailyLog| JDM Daily Log]]

===Daily Log:===

==2011 April 24:==

Xiao filled the dewar before FB arrived, and pressure seems high (3e-6). After refilling both dewars, the pressure went down to 6e-7.

Did the alignment on beams 4, 5, 6 so as not to impede on CLIMB run (+ we need to measure the fringe position again now that the IR5 repeatability problem has been cleared).

All computers had to be rebooted due to a long power outage this night, including lothlorien, wolverine, zoot. Had to restart all servers (shutters, etc.). Green laser is completely disaligned, need to restart crtscrut again to launch server to use pico to realign it...

==2011 April 25:==

Full alignment with 6 beams done, may look for missing offset B1B6 this week.
Started to work on shutter control with RMG, and on loading/saving config files from IRCam.
Also starting to review all possible issues when trying 6 beams, FT not ready, need to double check the bootstraping code too.

== 2011 April 26 ==

Reinstalled CHARA libraries properly. The code now compiles cleanly, everything is on CVS including CHAMP code.
Finished the addition of shutter code, working and compliant with CHARA code. RMG modified the alignment sequence for 6 beams.
Added the bootstrap for 6 beams (see CHAMP:Documents for the crazy equations...). Started to implement the wraparound carefully.

== 2011 April 27 ==

RMG finished adding the 6 beam sequence and tested it.

FB worked on trying to integrate the pico controls to the align gui. This took a while but I managed to integrate the controls into the gui, and they do work. However there are cosmetic issues to solve... Also the idea was to be able to use the PicoGui.py code directly, using the equivalent of a C #define depending on whether we use the standalone version or not (in particular we don't want to launch the zaber code in the align gui!). Once this is done, though, the first phase of the alignment gui will be complete (for the second phase we would need to calibrate the picos automatically, and have a close loop positioning of the spots, which should take only ~2 days to implement if we think ahead).

FB also modified the FT gui in prevision for the next run, fixing display issues when using 6 beams. Haven't had the time to continue on the wraparound as we needed the server to run most of the time.

Plan for tomorrow: finish the wraparound and finish integration of the picos to the align gui.

Possible plan for the next days: OPD maps ?, attempt to find the offset for BC61 again

== 2011 April 28 ==

Fixed the following cosmetic issues with the align gui : invisible icons on devel@wolverine or ubuntu ssh, picos menu size, optimized viewport sizes, optimized icon sizes.
Added greying out buttons during alignment sequence for 4 and 6 beams. With automatic shutter/quadrant/pico selections implemented, now the user just has to click on the arrows.

The spooler code should be able to add most of the CHARA infos soon (uv coords, shutters, ). For the moment I implemented Shutter info only, but the original code from MIRC has a bunch of code which should be easily added back. Need more work on this obviously, but I've prefered continuing the wraparound coding... the main parts are in place, but still a bug or two to find as fake fringes do not get estimated perfectly.

Note: what about installing a more recent version of gcc in the far future, as vectorization in gcc4.4 should really improve performance.

== 2011 April 29 ==

Finished the wraparound, works.
Cleaned code in the Align gui that was useless (lots of junk from the template that was used for MIRC gui).
Tried to find the offset for BC61 but no luck (barely enough time to make a real attempt)....

== 2011 April 30 ==

The wraparound introduced a curious behaviour for beams 5 and 6, checking this.
Murderer on loose on the mountain, so we had to evacuate the mountain... Wasted most of the day as I now need the server for most of the remaining work.
Crashed at Theo's place (this happened to be his birthday).

== 2011 May 1 ==

Back on the mountain. CHAMP pressure increased from 6e-7 on the 29th to 5e-5. Both dewars only half-full, so now need to wait for pressure/temperature to settle down.
Worked on the GUIs a bit to clean up things. More tests on wraparound with 6 beams and fake fringes, phase estimators ok, gdt seems ok too.
Started pumping MIRC from pressure = 2e-1 at 11:30 down to 1.3e-3 at 18:30.

== 2011 May 2 ==

No luck on B6B1 again.

Tested coherent integration code on various fake fringes, out of array indexing due to recent changes from wraparound and other bugs fixed.

Committed changes to CVS for champ server, uploaded GUI code to wiki.

Code priorities for next time:

Server:

- Better debias, need to discuss with JDM.

- Kalman, already all the ingredients for this now.

These two require live DL fringes to test.

- I should examine all these calls to champ_bs, there seems to be too many of them.

GUI:

- Automatic "coarse" alignment if time.

== 2011 May 15 ==

Back to CHARA, realigned for 6 beams. Found fringes after a bit of mirror tweaking.

Started testing the wraparound on real fringes, I am tracking some issues.

== 2011 May 16 ==

Fixed issues with the wraparound (bad realloc of ChannelLastFlux + offset problem).

There was an issue with beam sampler server refusing to launch, fixed after theo investigated (computer refused to boot with serial plugged in).

I could not find the fringes B1B2/W1W2 at the usual place but I suspect where they should be thanks to fluctuations of flux. Hopefully this is not bad piezo again :-(

champdev and devel now use secure rsa passwordless ssh and sudo whenever possible, making debugging less tedious.

== 2011 May 17 ==

B3B4

Data taken in directory 2011May18/

champ_00000.fits -> champ_00035.fits failed attempts to record fringes because of spooler bug.

chamo_00036.fits and champ_0037.fits : non-moving fringes at standard mode rate

chamo_00038.fits and champ_00039.fits : moving fringes at standard mode rate, vel = 0.001 mm/sec

champ_00050.fits and champ_00051.fits : non-moving at 6.61465478 Hz

Nreads 50

Config: 16/ 16/ 7 / 22 / 50 / 42/ 21

FT; 6.61465478 Hz / 10.5 / 13.2 / 0.05 / 0.0

champ_00053.fits and champ_00054.fits : moving fringes at same 6.61465478 Hz, vel = 0.001 mm/sec

champ_00055.fits and champ_00056.fits: non-moving, nreads = 25, FT 12.9178 Hz

champ_00057.fits and champ_00058.fits: moving, nreads = 25, FT 12.9178 Hz, vel = 0.001 mm/sec

== 2011 May 18 ==

in May19 directory

B4B5

champ_00000.fits and champ_00001,fits : non-moving, fast mode

champ_00002.fits and champ_00003.fits and champ_0005.fits : moving, fast mode

champ_00007.fits and champ_00008.fits: non-moving, slow mode

champ_00009.fits and champ_00010.fits: moving, slow mode

champ_00011.fits and champ_00012.fits: non-moving, normal mode

champ_00013.fits and champ_00014.fits: moving, normal mode

B5B6

champ_00015 and 00016 and 00017 : non-moving, fast mode

00018 and 00019 : non-moving, slow mode

00020 and 00021 : non-moving, normal mode

B1B2

champ_00022.fits and champ_00023.fits and champ_00024.fits : non-moving, fast mode

champ_00025.fits and champ_00026.fits : non-moving, slow mode

champ_00027.fits and champ_00028.fits : non-moving, normal mode

B2B3

champ_00029.fits, champ_00030.fits, champ_00031.fits, champ_00032.fits : non-moving, fast mode (fringe flux fluctuating, alignment probably bad)

champ_00033.fits and _00034.fits : fast mode too, but new tries

champ_00035.fits, _00036.fits : slow mode

champ_00037.fits, _00038.fits : normal mode

== 2011 May 20 ==

Found fringes on B1B6 with W1(ref):1.000/W2:1.220

CHAMP:Manual

2012-06-10T20:43:47Z

192.153.157.220: /* Internal fringes with retros */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
HOW TO GET RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

----
RESULTS

* May 2011 results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm (May 5) -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm (May 5) -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

On 15 July 2011, got fringes on W1(B1)-W2(B6) on mirc, with W1 at 1.000000 m and W2 at 1.222642 m.

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4

W1 2.2000

W2 2.0079

B6/B1

W1 2.0000

W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-10T20:42:56Z

192.153.157.220: /* Internal fringes with delaylines */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

* Past results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

On 15 July 2011, got fringes on W1(B1)-W2(B6) on mirc, with W1 at 1.000000 m and W2 at 1.222642 m.

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

----
Jan 2011: Using Delaylines+ new delayline retros

B3/B4

W1 2.2000

W2 2.0079

B6/B1

W1 2.0000

W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-10T20:42:37Z

192.153.157.220: /* Internal fringes with retros */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

* Past results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

On 15 July 2011, got fringes on W1(B1)-W2(B6) on mirc, with W1 at 1.000000 m and W2 at 1.222642 m.

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

===Internal fringes with delaylines===

Jan 2011: Using Delaylines+ new delayline retros

B3/B4

W1 2.2000

W2 2.0079

B6/B1

W1 2.0000

W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009

CHAMP:Manual

2012-06-10T20:42:02Z

192.153.157.220: /* Internal fringes */

Manual for the CHARA-Michigan Phasetracker

==Overview==

{| border="1"
|+
!Tools!!Username@Computer!!Command!!Comments
|-
| CHAMP server || champdev@champ || champ_server ||
|-
| CHAMP spooler || champdev@champ || champ_spooler ||
|-
| Filters GUI || devel@wolverine || filtergui || ||
|-
| Picomotor GUI || devel@wolverine || picogui || ||
|-
| Fringe Tracking GUI || devel@wolverine || ftgui ||
|-
| Infrared camera GUI || devel@wolverine || ircamgui ||
|-
| ESP GUI || observe@zoot || espgtk RETRO || server command in /etc/rc.d/rc.local
|-
| Shutter GUI || observe@zoot || shutgtk ||
|-

|}

{| border="1"
|+
!Computer!!IP
|-
| champ || 192.168.3.136
|-
| wolverine || 192.168.3.143
|-
| zoot || 192.168.3.31
|-
| lothlorien || 192.168.3.134
|-
| ctrscrut || 192.168.3.3
|-
| mirkwood || 192.168.3.131
|}

==Quick Startup Guide==

How to log into CHAMP for development.

'''1) Power on outlets'''

Open in a web browser the CHAMP and MIRC APC controls:
Use Immediate Turn On for:

* CHAMP scanning PZTs

* CHAMP Electronics

* CHAMP picomotors (#1, 2, 4 in the list).

* MIRC MOXA Serial Port box.

'''2) Launch CHAMP server''' (fringe tracking and camera engine)

'''3) Launch CHAMP spooler''' (data saving)

'''4) Launch the infrared camera GUI'''

Once the IR Camera gui appears:

* click Update DAQ in the FPA Tab.

* click Update Server in the FT Tab.

* click Config Camera in the FPA Tab.

* click Start Exposure in the top bar.

The camera will start acquiring frames.

'''4) Launch the Fringe Tracking GUI'''

==Alignment==
===Nightly Alignment===

Start the shutters and picomotors GUI.

===Internal fringes with retros===

----
RETRO FRINGES

* Start the retro-reflector GUI.
* Press RETE1 (becomes green), home it, select step size of 4 microns (0.004).
* for automatic RETRO search, use acceleration = 0.1, and vel=0.02.

* Past results (+/- around 0.1 mm repeatability) with the pickoff mirrors in fiducial position (mount and platform aligned manually):

BC: 58440

IR1 175910, IR2 172160, IR3 173123, IR4 172835, IR5 173756

W1W2 on B1B2: 3.15 mm -- May 18 2011: 2.94 mm

W1W2 on B2B3: 6.84 mm -- May 18 2011: 6.77 mm

W1W2 on B3B4: 3.28 mm -- May 17 2011: 3.12 mm for CHAMP and MIRC 4.51 mm (MIRC fiducial position)

W1W2 on B4B5: 5.70 mm -- May 18 2011: 5.14 mm for CHAMP

W1W2 on B5B6: 10.36 mm (found with IR5 210007 and BC at 0) -- May 18 2011 10.38 for champ

W1W2 on B6B1: not found

* July 2011

Retro fringes so that we can phase with the optical combiner, with the far right vernier mirrors visually aligned.

Retro position:

B1B2 5.10 (checked Jul 2011 with visible combiner)

B2B3 5.940

B3B4 5.375

B4B5 5.841

B5B6 5.720

B6B1 -----

Pickoff

IR1: 183939 (July 14th)

IR2: 177589 (July 13th)

IR3: 160452 (July 13th)

IR4: 151714 (July 13th)

IR5: 141585 (July 12th)

BC: 58440 for the moment

On 15 July 2011, got fringes on W1(B1)-W2(B6) on mirc, with W1 at 1.000000 m and W2 at 1.222642 m.

Zaber configuration file [[Media:zaber_alignment.txt]]
--------------------
---------------------
Jun 9 2012

IR pickoffs in default position

Before re-alignment B1B2 5.52

After re-alignment

B1B2 5.39

B3B4 5.55

B5B6 5.50 -> 5.28 after moving PZT 6 mount

----
----
INTERNAL FRINGES WITH DELAYLINES

Jan 2011: Using Delaylines+ new delayline retros

B3/B4

W1 2.2000

W2 2.0079

B6/B1

W1 2.0000

W2 2.2250

Delayline delay equation

W1- W2 = delay = 0.295 - 0.104 n

where n= difference between beam numbers

n=1 -> 0.191

n=5 -> -0.225

-----------------

===Full Alignment===

STEP 1
* Turn on the CHAMP alignment laser (red) on the CHAMP table
* Align each beam on R1 target using A0
* Align on L1 using A1
* Align on R2 using A2, putting blocker on R1 (using L1/L2-target), so you don't see two spots
* Align on target L2 using A3, putting blocker on L1 (using the R1/2-target).

STEP 2
* Remove all blockers, put a blocker on R1
* Align on Towers of Power 1 and 2 using R1-R6
* Remove all blockers, put a blocker on L1
* Align on Towers of Power 3 and 4 using L1-L6 mirrors
* Align on Tower of Power 1-2 using beam splitter A4
* Check the alignment on Tower of Power 3-4

STEP 3
* Put camera target in front of camera
* Align on camera target using the Towers of Power and the cheat sheet: each spot should be near the edge of the pyramid, so that it's nearly jumping if you move the mirror knobs.
* Turn off the alignment laser

------
====Setting up camera to align spots====

Last step is to align the picomotor actuated mirrors using the actual infrared images.

Configurations for wide field and normal modes can be found in mainWindow.py.

Due to mechanical shifts of the camera (when filling it), the spots may not appears where expected, needing to offset the camera read by a few pixels (or in a worst case scenario to realign the pyramid).

2010 Jul center of pyramid on wide-field image: 23, 8
2010Jul: row off: 7, col off: 9, freq: 30

Jan 2011 row off:8, col off: 20, freq: 29.2571

May 2011 row 7 col 22

May 2012

------

====Shutters, spot pico ordering for alignment ====

using white light and K' filter.

{| border="1"
|+ Method for aligning spots on camera for 4 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) ||
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R1 || T2L || top spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B4 || L1 || BC6-1 || bottom spot
|-
|}

{| border="1"
|+ Method for aligning spots on camera for 6 beams configuration
!Step!!Open Shutter!!Spot!!Pico [alternate]!!Comments (To be confirmed)
|-
| 1 || B1 || L1 || Dicroic 1 (or T3H) || top spot
|-
| 2 || B1 || R2 || T2H || top spot
|-
| 3 || B2 || L2 || Dicroic 2 (or T3M) || top spot
|-
| 4 || B2 || R3 || T2M || bottom spot
|-
| 5 || B2 || R2 || BC1-2 || top spot
|-
| 6 || B3 || L3 || Dicroic 3 (or T4H) || bottom spot
|-
| 7 || B3 || R4 || T1L || top spot
|-
| 8 || B3 || R3 || BC2-3 || bottom spot
|-
| 9 || B4 || L4 || Dicroic 4 (T4M) || top spot
|-
| 10 || B4 || R5 || T1H || bottom spot
|-
| 11 || B4 || R4 || BC3-4 || top spot
|-
| 12 || B5 || L5 || Dichroic 5 || top spot
|-
| 13 || B5 || R6 || T1M || should be clean
|-
| 14 || B5 || R5 || BC4-5 || bottom spot
|-
| 15 || B6 || L6 || Dichroic 6 || should be clean
|-
| 16 || B6 || R1 || T2L || top spot
|-
| 17 || B6 || R6 || BC5-6 || should be clean
|-
| 18 || B6 || L1 || BC6-1 || ???
|}

Cheat-sheet: 
[[Media:CHAMP.cheat-sheet.pdf]] 
[[Media:CHAMP.cheat-sheet.docx]]

====Pictures====
 

[[Image:AlignLaser.JPG|600px|Alignment Laser]] 
[[Image:Dichroics.JPG|600px|Dichroics]] 
[[Image:Dichroics2.JPG|600px|Dichroics]] 
[[Image:PeriscopesL1L6.JPG|600px|Periscopes L1-L6]] 
[[Image:PeriscopesR1R6.JPG|600px|Periscopes R1-R6]] 
[[Image:PoT12.JPG|600px|Power of Tower 1+2]] 
[[Image:PoT34.JPG|600px|Power of Tower 3+4]] 
[[Image:Pyramides.JPG|600px|Pyramides]] 

==Hardware Subsystems==
===Overview===
=== Dichroic Pickoffs===

We have provided 3 sets of pickoff optics for use with CHAMP (the angle-of-incidence is 3 degrees). Each is designed with a 30' wedge and have been oriented with
thick part down (i.e., transmitted beams is bent downward by 13.7', which may be relevant for downstream combiners during alignment procedure).
All substrates have a broadband AR coating on the back-surface and the reflected light comes primarily from the front surface.

* Short-wave Pass (SWP):
These IR-grade Fused Silica substrates are coated with a dichroic coating to reflect K' band (2-2.3 microns) and to transmit JH bands (1.1-1.8 microns).

* [[Media:omega_swp.pdf]]: Performance of Shortwave Pass Dichroic (Omega)

%BR%

* Long-wave Pass (LWP):

These Calcium Fluoride substrates are coated with a dichroic coating to reflect JH bands (1.1-1.8 microns) and to transmit K' band (2-2.3 microns and longer for possible future experiments).

* [[Media:lwp_performance_001.pdf]]: Performance of Longwave Pass Dichroic (Omega)

%BR%

* Pickoffs Beam-splitters (BS):

These Calcium Fluoride beamsplitters were rejected from American Torch due to the coating not meeting specifications and the performance curves being proven unreliable. We believe the the coatings are about 50/50 at HK bands but are more like 75/25 (mostly transmitting) at J and beyond K band. This might prove useful in the future, but we do not expect these pickoff optics to be the best choice for most observers. Here is a measured transmission curve from the company, although we have not verified the accuracy yet:

* [[Media:Torch_BS_performance.pdf]]: Performance for (rejected) Beamsplitter Coatings (American Torch)

%BR%

===Piezo Scanners===

Old piezos: Piezojena 8 micron

New piezos: piezosystemjena 100 microns, PZ100SG

===Beamsplitters===

The IR-grade Fused silica beamsplitters are 50% +/- 10% over the full JHK' bandpasses. The coatings were done by Omega Optical and
you can find the coating performance here. The angle of incidence is ~11.5 degrees.

*[[Media:omega_bs.pdf]]: Beamsplitter Performance (Omega)

%BR%
===Towers of Power===
===Image Slicers===
===CHAMP Dewar===
===Filterset===
=== Triplet===
===HAWAII-1 Detector===

== Software==
===Real-time system (notes from Ettore 2010May) ===
Click here for detail on the upgrade to the realtime system [[RT_System]]
===Interface Computer (wolverine)===

====Generating OPD Map====
JDM: 2011Jan30

1. Acquire internal fringes using the Retro Cube A/B. See wiki page XXXX for table of pickoff mirror positions and Newport ESPGTK positions for easily acquiring fringes.

2. Take ~5 datasets (10 seconds each) of fringe data, ideally with slightly different phase offsets. As of 2011Jan30, we are using the kludge nsave=10000 which outputs a binary file called ~champdev/control/CHAMP/User/ftdata_#######.dat . This will get standardized using a fits format soon.

3. Copy datasets to wolverine for analysis: user: ~observe/CHAMP/Opdmap/Ftdata_DATE

4. run idl in ~observe/CHAMP/Opdmap

IDL> .r ftdata2idlvar.script

choose your FTDATA_DATE directory using dialog box [click on right-hand side of panel] and wait for it to finish. This may take a long while if one has recorded long sets of data. Will be much faster as FITS files.

IDL> .r opdmap_solver.script

Choose the ftdata*dat.idlvar file

the program wills how you fringes from 6 combiners. choose the one with fringes!

[Not working yet: JDM]

=== CHAMP control===
=== Actuators===
==Realtime Computer (champ)==
=== Camera Readout===
=== Piezo control===

Old PZT national instrument bnc cable to pico box:

A00, to left box, beam 5
A01, to middle box, beam 3
A02, to right box, beam 1

===Delay line communication===

== Appendices==

===Diagrams===

targets
filter box diagram
filterwheel key

=== Spares===

Optics

* Two (2) fused silica beam splitters for CHAMP combiner

* One (1) fused silica short-wave pass (SWP) dichroic pickoff

* One (1) calcium fluoride long-wave page (LWP) dichroic pickoff

* One (1) elliptical mirror mounted to invar piezo mount

* Four (4) f=450mm spherical mirrors for Tower of Power

* One (1) image slicer T1

* One (1) image slicer T2

* One (1) image slicer B1 [note: we are using the spare. the original B1 has some coating problems near apex and is put back as a backup/spare

* One (1) image slicer B2 [note: the backup spare B2 has slight problem where the bottom-right quad, B2d, is too large in one dimension. This means the pyramid will not fit in the holder. If one needs to use this backup, one will need to mill-out extra clearance in the holder]

Other things: TBDocumented, some card for camera electronics. zabar motors.

* One (1) motherboard for servers (compatible with mirkwood, champ -- one kept at CHARA, one at UM)

-- Main.monnier - 08 Feb 2009