| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
303
|
Thu Jul 26 20:57:07 2018 |
Koji | Electronics | Characterization | 9MHz port tuned impedance | [Rich Koji]
The 9MHz port was tuned and the
impedance was measured. |
|
|
304
|
Tue Aug 7 15:43:12 2018 |
Koji | Electronics | Characterization | New LLO EOM stuffed | [Rich, Dean, Koji]
Stuffed all inductors for the new
LLO EOM. As the impedances were sensitive |
|
|
385
|
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 |
|
|
402
|
Sat Nov 21 13:58:30 2020 |
Koji | Electronics | Characterization | Dark Current Measurement for InGaAs QPDs | Dark current measurement for InGaAs QPDs
(OSI FCI-InGaAs-Q3000) has been done using
Keithley 2450 and Frank's diode test |
|
|
403
|
Sun Nov 22 13:49:12 2020 |
Koji | Electronics | Characterization | Impedance Measurement for InGaAs QPDs | To know any anomaly to the junction
capacitance of the QPD segments, the RF impedances
were tested with a hand-made impedance measurement. |
|
|
404
|
Mon Nov 23 23:17:19 2020 |
Koji | Electronics | Characterization | The dark noise of the Q3000 QPDs | The dark noise levels of the four Q3000
QPDs were measured with FEMTO DLPCA200 low
noise transimpedance amp. |
|
|
405
|
Tue Nov 24 10:45:07 2020 |
gautam | Electronics | Characterization | The dark noise of the Q3000 QPDs | I see that these measurements are done
out to 100 kHz - I guess there is no reason
to suspect anything at 55 MHz which is where |
|
|
406
|
Tue Nov 24 12:27:18 2020 |
Koji | Electronics | Characterization | The dark noise of the Q3000 QPDs | The amplifier BW was 400kHz at the gain
of 1e7 V/A. And the max BW is 500kHz even
at a lower gain. I have to setup something |
|
|
486
|
Sat Feb 4 03:30:02 2023 |
Koji | Electronics | General | OMC cables #4 arrived | The OMC cables #4 arrived on Feb 3rd. (See
Attachment)
This shipment included two DCPD |
|
|
493
|
Wed Feb 15 16:00:46 2023 |
Stephen | Electronics | General | OMC cables #4 inspected | Inspection
Updated ICS (Shipment-12578) and
moved those parts to Storage-9482. |
|
|
497
|
Fri Feb 17 17:41:57 2023 |
Thejas | Electronics | Characterization | A+ OMC Piezos wedge angle | [Camille, Stephen, Thejas]
PZT model: Noliac 2124
Qty: 18 (Sr. No. 30 - 48) |
|
|
544
|
Tue May 23 16:30:09 2023 |
Thejas | Electronics | Characterization | A+ OMC Piezos LA coupling | Oplev setup was built: arm length about
2 m
As the PZT 44 was actuated with |
|
|
545
|
Fri Jun 2 13:28:09 2023 |
Camille Makarem | Electronics | | PZT op-lev measurements | The op-lev setup was modified slightly
(picture attached). The He-Ne laser was replaced
with one with a lower divergence angle. The |
|
|
547
|
Thu Jun 15 13:13:57 2023 |
Koji | Electronics | Configuration | OMC (004) DCPD/QPD preparation | Work
log for June 14, 2023
Selected QPDs from the |
|
|
548
|
Wed Jun 21 02:07:24 2023 |
Koji | Electronics | Configuration | OMC(004) QPD adjustment | QPD#
QPD1
QPD2 |
|
|
551
|
Fri Jun 30 10:30:57 2023 |
Camille Makarem | Electronics | | Summary of DC response measurements | [Camille, Thejas, Stephen]
The DC response of the PZT was
measured using the following setup (pictures |
|
|
552
|
Fri Jun 30 10:55:45 2023 |
Camille Makarem | Electronics | Characterization | Summary of PZT reliability test procedure | [Camille, Thejas, Stephen]
To test the reliability of the
PZTs, they were driven for 10^7 cycles. (At |
|
|
562
|
Mon Jul 17 10:15:56 2023 |
Camille Makarem | Electronics | Characterization | PZT Reliability Test Results (part 1 of 2) | [Camille, Thejas, Stephen]
Results for PZT reliability tests:
Batch 1: SN37, SN38, SN39, SN44 |
10x |
|
564
|
Wed Jul 19 08:38:07 2023 |
Camille Makarem | Electronics | Characterization | PZT Reliability Test Results (part 2 of 2) | Results for PZT reliability test:
Batch 3: SN31, SN32, SN35, SN40, SN45
|
|
|
622
|
Thu Sep 14 14:26:51 2023 |
Camille Makarem | Electronics | Characterization | Remaining PZT tests | PZTs 31, 32, 35, 40 and 45 have had their
DC responses measured (pre-reliability test)
and have been through the reliability test |
|
|
625
|
Mon Nov 13 23:57:55 2023 |
Koji | Electronics | Loan / Lending | Agilent 4395A Network Analyzer -> WB251 | Aidan and Hanna wanted to use the Agilent
4395A Network Analyzer at the WB251.
All the connections were removed. |
|
|
3
|
Wed Jun 20 00:10:53 2012 |
Koji | Facility | General | Hole on the wall was patched | |
|
|
14
|
Wed Aug 1 19:35:00 2012 |
Koji | Facility | General | Floor cleaned / Workbench being built / Table top defect | -
The floor of the room was cleaned and waxed!
- |
|
|
15
|
Sat Aug 11 00:59:14 2012 |
Koji | Facility | General | Laser Safety Barrier | It seemed that a laser safety barrier was
installed today!?
|
|
|
19
|
Wed Aug 22 20:16:43 2012 |
Koji | Facility | General | Workbenches have been installed / Clean room stools | Last Friday, new workbenches were installed.
Vladimir got a new table and a cleanroom
stool. |
|
|
46
|
Wed Dec 26 14:33:33 2012 |
Koji | Facility | General | Lase Interlock wired | Two switches are connected in series. |
|
|
57
|
Tue Jan 22 11:10:25 2013 |
Koji | Facility | General | Eyeware storage and hooks for the face shields are installed | A carpenter has come to install the eyeware
storage and hooks for the face shields. |
|
|
75
|
Sat Mar 23 02:32:23 2013 |
Koji | Facility | General | N2 cylinder delivered | Preparation for ionized N2 blow
- 99.9998% N2 cylinder delivered
(ALPHAGAZ 2 grade by AIR LIQUIDE) ALPHAGAZ |
|
|
288
|
Fri Sep 8 15:14:05 2017 |
Koji | Facility | General | Preparation for the plumbing work | [Steve, Aaron, Koji]
We've finished the preparation
for the forthcoming plumbing work on (nominally) |
7x |
|
391
|
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. |
|
|
412
|
Thu Jun 23 21:03:33 2022 |
Koji | Facility | General | Moving the small optical table to CAML (TCS Lab) | I've cleared the small optical table
and wondered how to move it out of the room.
Fortunately, the north side of the big table |
|
|
485
|
Sat Feb 4 03:22:46 2023 |
Koji | Facility | General | Ready for the HEPA enclosure expansion | HEPA 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 |
|
|
500
|
Mon Mar 6 12:25:08 2023 |
Koji | Facility | General | HEPA Enclosure improvement | Chub, JC, and co worked on the HEPA enclosure
improvement. |
|
|
519
|
Wed Apr 5 22:09:30 2023 |
Koji | Facility | General | HEPA Enclosure extension | Chub finished the HEPA enclosure extension
project. |
|
|
619
|
Fri Aug 25 22:01:29 2023 |
Koji | Facility | General | LED Strip installation plan | Here are the dimensions of the LED strips
and their gaps. |
|
|
620
|
Tue Aug 29 16:54:46 2023 |
Koji | Facility | General | LED Strip installed | [JC, Koji]
We've installed the LED strips
on the HEPA frame. We tried not to touch |
|
|
1
|
Fri Jun 15 15:45:49 2012 |
Koji | General | General | OMC Plan | LIGO Document G1200683-v1:
aLIGO OMC fabrication and testing |
|
|
2
|
Sat Jun 16 08:53:09 2012 |
Koji | General | General | To Do List | Facility
Work
|
|
|
7
|
Sat Jul 14 02:16:07 2012 |
Koji | General | General | Plan Update: July | Facility/Supplies
Work in progress |
|
|
11
|
Tue Jul 24 11:41:29 2012 |
Koji | General | General | Useful references | Nicolas Smith,
LIGO Document T0900383-v1
|
|
|
12
|
Tue Jul 31 21:29:43 2012 |
Koji | General | General | Work completed in July [!] |
Completed Work: Facility/Supplies
|
|
|
13
|
Tue Jul 31 21:33:17 2012 |
Koji | General | General | Plan Update: August [!] | Completed work of the previous months:
[Jul]
[Aug] [Sep] [Oct] [Nov] [Dec] |
|
|
27
|
Tue Oct 16 14:50:54 2012 |
jamie, jeff | General | General | OMC breadboard/plate measurement dimensions | We have measured the dimensions and mass
of the OMC glass plates/breadboards:
|
|
|
28
|
Tue Oct 16 15:50:09 2012 |
Koji | General | General | Work completed in August/September [!] |
Work done
|
|
|
29
|
Tue Oct 16 15:51:01 2012 |
Koji | General | General | Plan Update: October [!] | Completed work of the previous months:
[Jul]
[Aug] |
|
|
33
|
Wed Nov 7 20:21:42 2012 |
Koji | General | General | Work completed in October [!] | Completed work of the previous months:
[Jul]
[Aug] |
|
|
34
|
Wed Nov 7 20:44:11 2012 |
Koji | General | General | Plan Update: November [!] | Completed work of the previous months:
[Jul]
[Aug] |
|
|
47
|
Mon Dec 31 01:45:04 2012 |
Koji | General | General | Work completed in Nov and Dec [!] | Completed work of the previous months:
[Jul]
[Aug] |
|
|
61
|
Thu Feb 7 21:35:46 2013 |
Koji | General | General | Dmass's loan of LB1005 / A2&C2 sent to Fullerton / First Contact @40m | Dmass
borrowed the LB1005 servo amp from the OMC
lab. |
|
|
71
|
Thu Mar 14 22:18:23 2013 |
Koji | General | General | New loans for the diode test | ALL
returned
Loan
from ATF: |
|