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40m Log |
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Wed Feb 20 01:40:37 2013, Manasa, Update, Alignment, Final IFO alignment- in progress
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Wed Feb 20 03:13:10 2013, yuta, Update, Alignment, clipping centering checklist
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Wed Feb 20 20:58:37 2013, yuta, Update, Alignment, clipping centering checklist
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Wed Feb 20 21:12:37 2013, rana, Update, Alignment, clipping centering checklist
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Wed Feb 20 21:56:08 2013, yuta, Update, Alignment, clipping centering checklist
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Wed Feb 20 10:13:41 2013, yuta, Update, Alignment, PRC flashing brighter than last week
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Message ID: 8124
Entry time: Wed Feb 20 21:56:08 2013
In reply to: 8123
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Author: |
yuta |
Type: |
Update |
Category: |
Alignment |
Subject: |
clipping centering checklist |
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I'm not sure about the OMC situation at 40m. I think there are no direct beam reflected back into IFO from OMC path. There must be some backscatter, but we have to open OMC chamber again to put a beam dump.
I don't think we want to put one in OMC path for this pump-down, but we can put a beam dump to dump reflected beam from mis-aligned SRM tomorrow, if available. |