40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Wed Feb 20 01:40:37 2013, Manasa, Update, Alignment, Final IFO alignment- in progress 
    Reply  Wed Feb 20 03:13:10 2013, yuta, Update, Alignment, clipping centering checklist ClippingCenteringChecklist.pdf
       Reply  Wed Feb 20 20:58:37 2013, yuta, Update, Alignment, clipping centering checklist ClippingCenteringChecklist.pdf
          Reply  Wed Feb 20 21:12:37 2013, rana, Update, Alignment, clipping centering checklist 
             Reply  Wed Feb 20 21:56:08 2013, yuta, Update, Alignment, clipping centering checklist 
    Reply  Wed Feb 20 10:13:41 2013, yuta, Update, Alignment, PRC flashing brighter than last week 
Message ID: 8124     Entry time: Wed Feb 20 21:56:08 2013     In reply to: 8123
Author: yuta 
Type: Update 
Category: Alignment 
Subject: clipping centering checklist 

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.

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