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Entry  Tue Jul 30 18:56:31 2013, manasa, Update, General, ITMX chamber vented/Closing plan 
    Reply  Wed Jul 31 00:59:58 2013, manasa, Update, General, ITMX chamber vented/Closing plan 
Message ID: 8944     Entry time: Wed Jul 31 00:59:58 2013     In reply to: 8941
Author: manasa 
Type: Update 
Category: General 
Subject: ITMX chamber vented/Closing plan 

My Plan for closing:

Today: I will work on the ITMX oplev situation today and go through the vent close-up checklist as far as I can get.

[Alex, Sujan, Manasa]

The ITMX oplev steering mirrors were laid out such that they were out of the way of the BS oplev leakage. But the halo associated with the He-Ne laser does exist even now. I conclude that this is something that can be dealt with after we pump down as well. So I did not change the ITMX oplev optics on the POX table.

BS, PRM, ITMY and SRM oplevs were aligned and centered.

We want to do IPANG and IPPOS alignment when the IFO is aligned satisfactorily and right before we put the heavy doors.

The arms were aligned and ASS'd before I went in to fix the oplevs. I haven't done anything but deal with the oplevs tonight. So I am being lazy by assuming the alignment is still good and calling it a night.

Tomorrow: We will do the final alignment check for the arms, PRC and SRC with the light doors on. Check IPANG and IPPOS. The access connector and heavy doors should go in place late afternoon.
Thursday: We will start pumping down early in the morning on Thursday.

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