40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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New entries since:Wed Dec 31 16:00:00 1969
Entry  Tue Sep 20 08:54:33 2022, Koji, General, General, PD cage arrangement 
Upon the LLO work, the current PD arrangement in the cages are:
CAGE B
B1 OMC1 PDT (A1-23)
Entry  Mon Sep 26 14:27:49 2022, Koji, General, General, LLO OMC ICS work 
OMC #001


ICS Link: https://ics.ligo-la.caltech.edu/JIRA/browse/ASSY-D1201439-1
Already
marked as disassembled
Removed two PDs

https://ics.ligo-la.caltech.edu/JIRA/browse/IHGQEX3000-0-00-A1-25
Entry  Fri Nov 11 19:07:48 2022, Koji, Supply, General, Supply Order 
Clean Supply Ordered


TexWipe TX8410 AlphaSat Vectra Alpha 10 50 sheets x 12 pk  (VWR TWTX8410)
Mask KIMTECH PURE®
M3 Pleat-Style Face Masks 50 masks x 10 pk (VWR 15628-213)
Stainless Pan x3 (VWR 10193-562)
Ansell Accutech Latex Gloves 6.5
Entry  Tue Nov 15 07:46:58 2022, Camille Makarem, Optics, General, cleaning OMC #1 
Monday, November 14, 2022

Camille and Koji did a "deep cleaning" of OMC#1:
1) Applied First Contact to the mirror surfaces. Removed first contact after ~10 minutes.
    Reply  Tue Nov 15 10:58:53 2022, Koji, Optics, General, OMC #1 damaged black glass removal PXL_20221114_222641455.jpgPXL_20221114_222544330.jpgPXL_20221114_222555849.jpgPXL_20221114_233748631.jpg
[Camille, Koji]

The damaged black glass was removed from the OMC breadboard leaving the glass base.
The black glass pieces were bonded very tightly on the FS base with EP30-2. The apparent amount of the bond was not so much but it was such hard
    Reply  Tue Nov 15 11:12:24 2022, Koji, Optics, General, OMC #1 fogging on the AR side of BS1 cleaned PXL_20221114_225338114.jpgPXL_20221114_232824245.jpgPXL_20221114_233714774.jpgPXL_20221114_233748631.jpg
[Camille, Koji]

Photo of the BS1 AR cleaning process

Attachment 1: Before cleaning. Foggy surface is visible.
Entry  Thu Nov 17 18:56:22 2022, Koji, Optics, General, Transmission measurements of OMC #1 after deep cleaning PXL_20221117_232145418.jpgScreen_Shot_2022-11-17_at_19.02.31.png
[Camille, Koji]

- Removed the first contact we left on Monday.

- Measured transmission (Set1) Very high loss! Total optical loss of 18.5%! Observation
Entry  Fri Nov 18 18:41:05 2022, Camille Makarem, General, General, 2nd deep cleaning of OMC #1 PXL_20221118_213955948.jpg
The four cavity mirrors in OMC #1 were each scrubbed using acetone and a cotton swab.
Then, the four mirrors were painted with First Contact (picture attached). The First Contact was allowed to dry for 20 minutes, then removed while
using the top gun.
    Reply  Mon Nov 21 19:13:35 2022, Koji, General, General, Transmission measurement (2nd deep cleaning of OMC #1) PXL_20221122_030736513.jpgOMC_loss.pdf
OMC Transmission measurement after the 2nd deep cleaning

The 2nd deep cleaning didn't improve the transmission. (See Attachment 2)
The measured loss was 0.044+/-0.002
Entry  Mon Dec 5 20:09:39 2022, Koji, Optics, General, (re)starting the OMC #4 build PXL_20221205_233712211.jpg
[Camille Koji]

We started buikding the OMC #4. 


Removed OMC #1 from the optical setup and placed it at a safe side on the optical table/
Fixed OMC #4 in the optical setup
Cleaned
Entry  Fri Dec 18 15:33:24 2015, Koji, General, Loan / Lending, Loan from Rich 
Loan Record: I borrowed a PD can opener from Rich => Antonio Returned Sep 9, 2016

Tungsten Carbide Engraver (permanently given to the OMC lab)

KEITHLEY SOURCE METER + Laptop
Entry  Thu Feb 18 21:08:32 2016, Koji, General, Loan / Lending, (all returned) Antonio loan 
Antonio borrowed: Rich's PD cutter (returned), Ohir power meter(returned), Thorlabs power meter head, Chopper
Entry  Tue Apr 5 18:14:55 2016, Koji, General, Loan / Lending, QPD Lending Crackle 
Xiaoyue

QPD head
X-Z stage
Entry  Thu May 3 21:45:58 2018, awade, General, Loan / Lending, Borrowed toaster oven 9CE80545-7A58-4236-B7E3-1EE6C4042DAA.jpeg
I’ve borrowed the black and decker toaster oven to dry some sonicated parts. It is temporarly located in the QIL lab. 
Entry  Tue Oct 22 15:54:59 2019, Koji, Electronics, Loan / Lending, Borrowed LB1005 from Cryo Cav 
From Cryo Cav setup

Borrowed LB1005 Servo box -> OMC

 
Entry  Mon Aug 10 15:34:04 2020, Koji, Facility, Loan / Lending, Glue bake oven 
Black and Decker Glue Baking Oven came back to the OMC lab on Aug 10, 2020, Georgia had lent the unit for the SAMS assembly/testing.
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