40m QIL Cryo_Lab CTN SUS_Lab CAML OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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ID Date Author Type Categoryup Subject Text Attachments
  448   Fri Aug 26 22:29:02 2022 KojiGeneralGeneralTool Shipping PrepShipping preparation for the LLO

July 15, 2022 and finished Aug 30. So it
  449   Tue Sep 20 08:54:33 2022 KojiGeneralGeneralPD cage arrangementUpon the LLO work, the current PD arrangement
in the cages are:
  450   Mon Sep 26 14:27:49 2022 KojiGeneralGeneralLLO OMC ICS workOMC

ICS Link: https://ics.ligo-la.caltech.edu/JIRA/browse/ASSY-D1201439-1
  453   Fri Nov 11 19:07:48 2022 KojiSupplyGeneralSupply OrderClean Supply Ordered

TexWipe TX8410 AlphaSat
Vectra Alpha 10 50 sheets x 12 pk  (VWR
  456   Tue Nov 15 07:46:58 2022 Camille MakaremOpticsGeneralcleaning OMC #1Monday, November 14, 2022

Camille and Koji did a "deep
cleaning" of OMC#1:
  457   Tue Nov 15 10:58:53 2022 KojiOpticsGeneralOMC #1 damaged black glass removal[Camille, Koji]

The damaged black glass was removed
from the OMC breadboard leaving the glass
  458   Tue Nov 15 11:12:24 2022 KojiOpticsGeneralOMC #1 fogging on the AR side of BS1 cleaned[Camille, Koji]

Photo of the BS1 AR cleaning process

Attachment 1: Before cleaning.
  459   Thu Nov 17 18:56:22 2022 KojiOpticsGeneral Transmission measurements of OMC #1 after deep cleaning[Camille, Koji]

- Removed the first contact we
left on Monday.
  461   Fri Nov 18 18:41:05 2022 Camille MakaremGeneralGeneral2nd deep cleaning of OMC #1The four cavity mirrors in OMC #1 were
each scrubbed using acetone and a cotton
  462   Mon Nov 21 19:13:35 2022 KojiGeneralGeneralTransmission measurement (2nd deep cleaning of OMC #1)OMC Transmission measurement after
the 2nd deep cleaning

The 2nd deep cleaning didn't
  467   Mon Dec 5 20:09:39 2022 KojiOpticsGeneral(re)starting the OMC #4 build[Camille Koji]

We started buikding the
OMC #4. 
  471   Thu Jan 19 23:45:44 2023 KojiOpticsGeneralOMC #4: cavity mirror bonding[Koji, Camille]

We worked on the bonding of the
flat mirrors for the OMC cavity with UV epoxy.
  472   Mon Jan 23 19:51:20 2023 KojiOpticsGeneralOMC #4: cavity mirror bonding[Camille, Koji]

We continued to bond two CM mirrors
and the other two steering mirrors for QPD2.
  473   Wed Jan 25 23:51:04 2023 KojiGeneralGeneralThe items packed for DownsQty1 1/2 mounts
Qty2 prism mounts
Qty6 gluing fixures
  474   Thu Jan 26 22:57:19 2023 KojiOpticsGeneralOMC #4: One Invar block bonded with tilt[Camille, Koji]

The bottom side template was separated
into two pieces and successfully removed
  475   Thu Jan 26 23:07:14 2023 KojiOpticsGeneralOMC #4: Input beam dump bonding[Camille, Koji]

During the second UV epoxy session,
we did not bond the input beam dump. This
  477   Thu Jan 26 23:46:13 2023 KojiOpticsGeneralOMC #1 input beam dump bondingA beam dump was stacked on the base of
the previous beam dump. The angle was determined
so that the main transmission goes through
  478   Sat Jan 28 00:38:56 2023 KojiMechanicsGeneralOMC #1 cable bracket replacement / OMC #1 repair completedThe AL metal bracket was replaced with
a PEEK version.

Attachments 1/2: Before the replacement.
  479   Sat Jan 28 00:46:21 2023 KojiMechanicsGeneralOMC #4: Replaced the locks of the transport fixture Yesterday, we noticed that we could not
close the transport fixture for OMC #4. We
could not fully rotate the knobs of the locks.
  480   Wed Feb 1 01:33:03 2023 KojiMechanicsGeneral5th OMC Transport FixtureThe transport fixture was brought to the
40m clean room to use as an assembly reference.
  481   Wed Feb 1 01:39:41 2023 KojiMechanicsGeneralDCPD housing / QPD housingInserted 4-40 and 2-56 helicoils into the
DCPD/QPD housings for the 4th OMC. The retainer
caps were also fastened to the housings.
  482   Wed Feb 1 01:44:14 2023 KojiGeneralGeneralOMC (004) plan2/1 2:30PM~ Bonding reinforcement (Last
EP30-2 gluing)

2/2 1:00PM~ Peripheral attachment
  483   Thu Feb 2 03:09:41 2023 KojiOpticsGeneralOMC #4: One Invar block bonded with tilt[Camille, Thejas, Koji]

We added a reinforcement bar at
the back of the invar block which had the
  484   Sat Feb 4 03:16:10 2023 KojiOpticsGeneralOMC #4: One Invar block bonded with tiltThe attached photo shows the resulting
bond spread.

  485   Sat Feb 4 03:22:46 2023 KojiFacilityGeneralReady for the HEPA enclosure expansionHEPA is quite low for a tall person and
also the curtain on the back of us is always
heavy. It's very tough for anyone to
  486   Sat Feb 4 03:30:02 2023 KojiElectronicsGeneralOMC cables #4 arrived The OMC cables #4 arrived on Feb 3rd. (See

This shipment included two DCPD
  487   Sat Feb 4 03:33:22 2023 KojiGeneralGeneralOMC Lab InventoryAttachment 1: North Cabinet 2nd from the

Attachment 2: North Cabinet 3rd
  493   Wed Feb 15 16:00:46 2023 StephenElectronicsGeneralOMC cables #4 inspectedInspection

Updated ICS (Shipment-12578) and
moved those parts to Storage-9482.
  500   Mon Mar 6 12:25:08 2023 KojiFacilityGeneralHEPA Enclosure improvementChub, JC, and co worked on the HEPA enclosure
  501   Mon Mar 6 16:02:56 2023 Thejas OpticsGeneralOMC test setup locking On Feb 16, Camille and I attampted at locking
the OMC cavity. It was quick to re-align
the beam to the cavity (by using only the
  519   Wed Apr 5 22:09:30 2023 KojiFacilityGeneralHEPA Enclosure extensionChub finished the HEPA enclosure extension
  525   Tue Apr 18 07:59:46 2023 Madeline LesovskyGeneralGeneralTest Cure Bake - Curved Mirror Subassembly BondingThis is a test bake conducted in Air Bake
Oven A (ABO-A) held in the 40m Clean and
Bake facility. The overall objective is to
  530   Fri Apr 28 13:25:40 2023 Thejas OpticsGeneralaLIGO OMC Unit-4[Camille, Koji, Thejas]

Yesterday, we cleaned the cavity
optics with first contact, aligned the input
  543   Fri May 19 16:09:31 2023 StephenGeneralGeneralA+ OMC Build Progress, Week of 2023.05.15A+ OMC Build efforts ongoing or completed
this week:

 PZT lead onboard
  546   Fri Jun 2 17:15:44 2023 StephenGeneralGeneralA+ OMC Build Progress, Weeks of 2023.05.22 and 2023.05.29A+ OMC Build efforts ongoing or completed
in the last two weeks:

 PZT lead onboard
  248   Fri Dec 18 15:33:24 2015 KojiGeneralLoan / LendingLoan from RichLoan Record: I borrowed a PD can opener
from Rich => Antonio Returned Sep
9, 2016
  250   Thu Feb 18 21:08:32 2016 KojiGeneralLoan / Lending(all returned) Antonio loanAntonio borrowed: Rich's PD cutter
(returned), Ohir power meter(returned),
Thorlabs power meter head, Chopper
  258   Tue Apr 5 18:14:55 2016 KojiGeneralLoan / LendingQPD Lending CrackleXiaoyue

QPD head
X-Z stage
  293   Thu May 3 21:45:58 2018 awadeGeneralLoan / LendingBorrowed toaster ovenI’ve borrowed the black and decker
toaster oven to dry some sonicated parts.
It is temporarly located in the QIL lab. 
  385   Tue Oct 22 15:54:59 2019 KojiElectronicsLoan / LendingBorrowed LB1005 from Cryo CavFrom Cryo Cav setup

Borrowed LB1005 Servo box ->
  391   Mon Aug 10 15:34:04 2020 KojiFacilityLoan / LendingGlue bake ovenBlack 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.
  518   Tue Apr 4 16:14:06 2023 KojiOpticsLoan / LendingC7 mirror to DownsI handed Camille the C7 mirror for the
cross-calibration of the ROC characterization
  529   Wed Apr 26 14:43:44 2023 StephenGeneralLoan / LendingBorrowed Items for PZT DC Response Shadow Sensor SetupBorrowed for PZT DC Response Shadow Sensor
Setup (see Attachment 1):

Thorlabs PDA100A Photodiode
  538   Fri May 12 10:00:06 2023 Camille MakaremGeneralLoan / LendingBorrowed Items for PZT DC Response Shadow Sensor SetupThe ThorLabs MDT694B piezo driver was returned
to the OMC lab.

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