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40m Log |
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Message ID: 650
Entry time: Tue Jul 8 21:58:22 2008
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Author: |
alberto |
Type: |
Update |
Category: |
General |
Subject: |
Secondaty beam aligned to the IFO beam again |
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Yesterday the alignment of the secondary beam to the IFO was completely lost and today I had to realign all the optics before I was able to match the two spots again. I had to reset the height of the irises and I had also to replace mirror M1 with one with a larger angular motion. Eventually I obtained the beat again. Working on the optics table I inadvertently misaligned the OSA but I didn't make in time to bring it back before the night shift people came. I'll work on that tomorrow morning. |