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 Oct 28 20:42:53 2020, Koji, Update, General, Vent Prep 10x
    Reply  Thu Oct 29 12:43:35 2020, gautam, Update, General, Vent Prep preVentAlignment.pngPRMIcarr_PRMalignment.pngALS_ool.pdflowPowerMC.png
       Reply  Thu Oct 29 19:30:56 2020, gautam, Update, General, Vent complete ventValveStatus.pngvent_Oct2020.jpgventValveStatus_overnight.pnglowPowerIMC_afterVent.png
          Reply  Mon Nov 2 12:44:25 2020, gautam, Update, General, ETMY and OMC chamber heavy doors off CB84FD62-C48B-414F-8825-50C9DE0B47CF.jpeg
             Reply  Mon Nov 2 16:46:06 2020, gautam, Update, General, Plan for OMC chamber IMG_2318.JPGIMG_2332.JPG
                Reply  Mon Nov 2 17:13:19 2020, Koji, Update, General, Plan for OMC chamber 
                   Reply  Mon Nov 2 17:32:05 2020, gautam, Update, General, Plan for OMC chamber IMG_2317.JPG
Message ID: 15654     Entry time: Mon Nov 2 16:46:06 2020     In reply to: 15653     Reply to this: 15655
Author: gautam 
Type: Update 
Category: General 
Subject: Plan for OMC chamber 

To be a bit more clear about what we are going to do in the OMC chamber, I marked-up some photos, see Attachments #1 and #2.

  1. OM5 will be rotated to bring the IFO AS beam straight out without any splitting to the OMC.
  2. OMMT, OMC, DCPD, DCPD transimpedance amp, and all peripheral optics associated with these components, will be removed. Many of these components are mounted on a breadboard and so removing that breadboard will take care of it. These are marked with pink Xs.

I anticipate that after this work, the only components on the table will be 

  1. IM1, to send the PSL beam to the IMC.
  2. OMs 5 and 6 to bring the IFO AS beam out onto the AP table (in principle, we could try and eliminate both these optics, if the AS beam happens to exit through one of the viewports cleanly, we will not have any intervening objects in the way once the OMC and peripherals are removed).
  3. MMT2 for mode-matching the IMC transmission to the interferometer mode.

Are we in agreement with this plan?

See #15656 for the updated photo

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Attachment 2: IMG_2332.JPG  2.354 MB  | Hide | Hide all
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