https://monnier.astro.lsa.umich.edu/research/index.php?action=history&feed=atom&title=CHARA_AO%3A_Second_Meeting 2026-07-30T11:59:14Z Revision history for this page on the wiki MediaWiki 1.42.1 https://monnier.astro.lsa.umich.edu/research/index.php?title=CHARA_AO:_Second_Meeting&diff=2656&oldid=prev 2011-07-07T23:11:58Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:11, 7 July 2011</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l21">Line 21:</td> <td colspan="2" class="diff-lineno">Line 21:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Shear issue for the slow WFS. If we add 2 extra reflections to when we the slow WFS, we could do SHEAR control -- which would be GREAT!!!  (who will do this? Theo?)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Shear issue for the slow WFS. If we add 2 extra reflections to when we the slow WFS, we could do SHEAR control -- which would be GREAT!!!  (who will do this? Theo?)</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* not funded to do dicroic switcher -- but we need to try to do it anyway somehow!!</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* not funded to do dicroic switcher -- but we need to try to do it anyway somehow!!</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* We want to move forward to ask Keck Foundation for phase II</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Theo has a dropbox directory for this</ins></div></td></tr> </table>

192.153.157.221 https://monnier.astro.lsa.umich.edu/research/index.php?title=CHARA_AO:_Second_Meeting&diff=2655&oldid=prev 2011-07-07T23:07:49Z

<p>New page: 2011 Jul 07 Check on Action Items: * SR: no progress with new quotes for M4 DM * CS: send a report earlier about the * LS: Did send a ZEMAX of M1-6 to JDM * Simulations * Real-time archi...</p> <p><b>New page</b></p><div>2011 Jul 07<br /> <br /> Check on Action Items:<br /> * SR: no progress with new quotes for M4 DM<br /> * CS: send a report earlier about the <br /> * LS: Did send a ZEMAX of M1-6 to JDM<br /> * Simulations<br /> * Real-time architecture<br /> <br /> New Action Items:<br /> * JDM will update documention here with Chris Shelton&#039;s memo<br /> * Collect feaures we need in this system, e.g. be able to image the laser going out,<br /> stimulus, IR beacon, acquisition camera, <br /> * How is angle beacon going to function? can we have a separate tip-tilt MIRROR for the lab loop? not cheap .. probably will use offsets to the WFS.<br /> * Can we do this ALL in NIR? or do we need to use a visible WFS for star light?<br /> * Cool idea is to use beacon for everything! keep current system! choose wavelength like 1.3 micron (laser interference issue).<br /> * Stuff for FAST-WFS camera and RT architecture. Quick study -- see previous meeting<br /> * Ask VEGA/PAVO about using 0.96 micron light for the beacon ( can be then be<br /> stimulus for telescope AO WFS as well as lab slow WFS)<br /> * Bring-up sequence for how to not screw up current performance.<br /> * Shear issue for the slow WFS. If we add 2 extra reflections to when we the slow WFS, we could do SHEAR control -- which would be GREAT!!! (who will do this? Theo?)<br /> * not funded to do dicroic switcher -- but we need to try to do it anyway somehow!!</div>

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