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40m Log |
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Tue Jan 7 23:24:41 2014, Jenne, Update, General, IFO plan, list o' things to do
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Wed Jan 8 13:46:39 2014, Jenne, Update, General, IFO plan, PRM baffle
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Wed Jan 8 17:53:26 2014, manasa, Update, General, IFO plan, IPANG telescope 
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Thu Jan 9 17:21:45 2014, rana, Update, General, IFO plan, IPANG telescope
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Thu Jan 9 10:34:58 2014, Steve, Update, PSL, PSL pointing changes in pitch 
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Fri Jan 10 10:28:03 2014, Steve, Update, PSL, PSL pointing changes
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Message ID: 9543
Entry time: Thu Jan 9 17:21:45 2014
In reply to: 9540
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Author: |
rana |
Type: |
Update |
Category: |
General |
Subject: |
IFO plan, IPANG telescope |
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Quote: |
For the IPANG telescope design, we are in the 'beyond the Rayleigh range' regime. So using a single lens to make the beam small is not a great idea. I
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Can you please explain this? I don't understand what exactly is the issue or 'great idea'.
I think we should be OK with just a single lens in the vacuum. But what we need is the ray tracing analysis to show what the effect will be on the IPANG readout. |