| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
405
|
Mon Jul 15 13:30:49 2024 |
Luke | Update | VAC | Problem with 2.75" to 1.33" zero length reducer | Last Friday while checking the depth of the
ZLR I got one of the screws stuck. Today
I tried a couple things to get it out. First |
|
|
535
|
Mon Mar 10 17:03:52 2025 |
Shane | Update | CDS | Pressure Gauge successful connect | Vac system serial interfacing update: the
pressure gauge is now able to communicate
successfully through the code. It's been |
|
|
255
|
Mon Nov 6 11:29:24 2023 |
Tyler | Update | Electronics | Preliminary RTD Calculations, RP Software Update |
Preliminary RTD calculations are shown
below, given an input of 10 V and desiring
a few mA of current. It looks like R_ref |
|
|
185
|
Tue Aug 1 12:48:41 2023 |
Aiden | Update | Cleanroom | Pre Filter Change |
Changed the pre filter inside of the
3 stage HEPA system next to the soldering
station. It was rather dirty and I have attached |
|
|
137
|
Wed Jun 28 15:58:56 2023 |
Shane, Cao | Infrastructure | VAC | Power trip problem remains, source of smoke is insulation | [Shane, Cao]
With the new change
in wiring configuration described in elog
136, |
|
|
330
|
Tue Feb 20 08:01:30 2024 |
Jon | Infrastructure | General | Power and network equipment installed in 1129 rack | [Jon, Tyler, Pooyan, Luis, Luke, Peter]
On
Thursday we installed the power conditioning/distribution
equipment and networking equipment in the |
|
|
165
|
Tue Jul 18 16:35:06 2023 |
Pamella | Update | FLIR | Plot-Data with the new configuration without the mask and reflector. | [Pamella]
I was able to plot the
first graph for a result between the six
different positions on the screen, for now |
|
|
431
|
Thu Aug 29 16:39:34 2024 |
Luke | Update | VAC | Photos of heater tape | |
6x |
|
94
|
Tue May 9 15:49:20 2023 |
Jon | Infrastructure | VAC | Permanent cable routing | Today I brought in a fresh supply of zip
ties (we now have 1500 in the tool chest)
and used them to permanentize the cable routing |
|
|
12
|
Mon Nov 28 18:10:23 2022 |
shane | Update | ELOG | Particle counts in the clean room | Particle count stats for the clean room Nov
28, 2022:
Took 10 sample runs in each of
5 regions in the clean room (5 runs per region |
|
|
64
|
Tue Apr 4 16:52:08 2023 |
Jon | Update | Cleanroom | Particle counter docking station | Due to the problems we have encountered trying
to serially communicate directly with the
Met One DR-528 particle counter, I went ahead |
|
|
71
|
Wed Apr 12 16:17:50 2023 |
shane | Update | General | Particle Counter moved | With the added height of the new docking station,
the particle counter no longer fits under
the Windows monitor in the electronics rack |
|
|
235
|
Mon Oct 9 11:29:37 2023 |
Tyler | Update | Electronics | PSD/CSD Plot Updates | Continuing from Sophia's SURF Project this
summer: Plotting the Power-Spectral Densities
(PSDs) and Cross-Spectral Densities of two |
|
|
536
|
Mon Mar 10 21:13:12 2025 |
Nathan | Update | VLC Update | PDH Lock Progress and Next Steps | Progress update: Photodiode is set up, need
to set up DC bias tee, EOM has 400-600nm
wavelength range with a resonance frequency |
|
|
39
|
Wed Mar 1 21:27:20 2023 |
Jon | Infrastructure | Cleanroom | Over-table shelf height raised | Jon, Cao
Today we raised the height of the
shelf overhanging the cleanroom laser table |
|
|
16
|
Mon Jan 23 17:26:15 2023 |
Peter Carney | Update | General | Oven cleaning | Aiden and Cao
Turned on the oven to 120
deg C for 12 hours. After 12 hours, put it
at 200 deg C for 48 hours. |
|
|
17
|
Thu Jan 26 18:58:25 2023 |
Aiden | Update | General | Oven Heating | Aiden cleaned the oven with methanol again
and set the oven to 260 degC for 12 hours. |
|
|
338
|
Fri Feb 23 18:03:27 2024 |
Tyler | Update | FLIR | Optical Test Setup in Cleanroom | [Tyler, Xuesi]
The FLIR and test mass
stand-in have been transferred into the cleanroom.
A software test will be run as soon as we |
|
|
9
|
Tue Jul 26 14:10:35 2022 |
Cassidy | Update | Cameras | Optical Post Replacement and Realignment | Today I replaced the 3" optical post that
the camera rests on with a 2" optical post
in order for the screen to correctly fill |
|
|
527
|
Thu Feb 27 18:22:21 2025 |
Shane | Update | CDS | Ongoing work in server rack and desk area (1119) | As part of the vacuum communications debugging
process, there is ongoing work in the server
rack and desk area in 1119. Please be careful |
|
|
424
|
Mon Aug 12 17:09:04 2024 |
Cynthia | Update | Interferometer Simulations | O4 vs O5 cavity scans with ITM plume guess or ETM | So far the proposed solution for what to use
for O5 ITM mirror for SIS simulations is
either the plume guess file or using the |
|
|
392
|
Mon Jul 1 15:19:42 2024 |
Cynthia | Update | Interferometer Simulations | O4 and O5 mirror cavity scans with thermal effect | |
|
|
67
|
Tue Apr 11 13:15:40 2023 |
Cao | Infrastructure | Clean & Bake | Nitrogen gas tank replaced | The nitrogen gas tank has been replaced with
a new unit. The new tank is ultra pure nitrogen
(>99.9% nitrogen).
The new tank has been |
|
|
26
|
Fri Feb 10 16:34:45 2023 |
Huy Tuong Cao | Infrastructure | Clean & Bake | Nitrogen gas tank ready to use | Cao,
Today I fixed the final bit related
to the nitrogen gas tank, which is to apply
sealing tape to M-NPT connector of the hose |
|
|
412
|
Fri Jul 26 17:25:42 2024 |
Jon | Infrastructure | Computers | New workstation ws4 installed in 1129 | Today I installed the second desktop workstation
in 1129. The new machine is an Intel NUC13ANHi5,
with a 12-Core Intel i5-1340P CPU, 32GB DDR4 |
|
|
379
|
Thu Jun 20 18:01:11 2024 |
Jon | Infrastructure | Computers | New workstation ws3 in 1129 | I have repurposed a spare Intel NUC to serve
as the first of two planned workstations
in 1129. Today I set it up with a fresh installation |
|
|
385
|
Wed Jun 26 15:33:41 2024 |
Jon | Infrastructure | Computers | New workstation ws3 in 1129 |
Set-up of the first CDS workstation for
1129, ws3, is complete and the machine is
ready for use. The login credentials are |
|
|
198
|
Wed Aug 9 11:32:56 2023 |
Jon | Infrastructure | General | New power cables | I delivered new NEMA 5-15 (120V / 15 A)
power cables to the lab for the following
items: |
|
|
135
|
Tue Jun 27 15:18:26 2023 |
Pamella | Update | FLIR | New data collection |
[Pamella]
Yesterday,
I did a new data collection. I could get
a better data in this time and I realized |
|
|
123
|
Tue Jun 13 21:33:46 2023 |
Pamella | Update | General | New cabinet for PPI | [Pamella and Dr.Richardson]
Dr. Richardson
installed the new cabinet outside the room
for the PPI equipments, and then I wiped |
|
|
157
|
Fri Jul 14 16:49:42 2023 |
Pamella | Update | FLIR | New bridge and calibration data | [Pamella]
Aiden 3D printed a new
bridge for the heater and I installed the
new bridge yesterday.
I started |
|
|
367
|
Mon May 13 14:48:27 2024 |
Aiden | Update | VAC | New Vacuum Chamber Design | I created a new model for the vacuum chamber
based on the ideas from last week's meeting.
It
should be noted that we can not have the |
|
|
398
|
Mon Jul 8 17:01:45 2024 |
Shane | Update | CDS | New CyMAC internal layout | [Jon, Shane]
Internal layout of CyMAC has
been updated (labeled image attached) to
accommodate the replacement of the two ribbon |
|
|
108
|
Tue May 30 14:51:27 2023 |
Pamella | Update | FLIR | New 3D mask - Bigger triangles shapes. | [Pamella]
Change the 3D mask
Started removing the old mask in the reflector.
Started cutting the new aluminum lid for |
|
|
172
|
Tue Jul 25 15:35:14 2023 |
Shane | Update | Electronics | More chassis moved | Finished basic assembly of binary input and
output chassis today, and moved one to top
shelf of work bench. The other is in corner |
|
|
91
|
Wed May 3 19:03:47 2023 |
Julian,Pamella and Cao | Physics | VAC | Modify vacuum asssembly and install RGA | [Pamella, Julian, Cao]
Today we
started re-configuring the vacuum chamber
components.
Particle count |
|
|
111
|
Wed May 31 16:18:41 2023 |
Aiden | Summary | General | Mock FROSTI | Finished assembly on the Mock FROSTI so it
is ready for the fit test at LIGO lab. |
|
|
397
|
Mon Jul 8 12:26:10 2024 |
Michael | Update | Interferometer Simulations | Minimizing Astigmatic Effects in the SRC of LIGO | This is the first look and analysis of the
effects of astigmatism in the aLIGO optical
layout which can lead to mode mismatch and |
|
|
339
|
Sat Feb 24 08:53:38 2024 |
Jon | Infrastructure | Computers | Matlab upgraded to 2023b on Chimay | I upgraded Matlab on chimay to the latest
stable release, 2023b. From some quick tests,
it appears to be in working order. Let me |
|
|
496
|
Thu Jan 2 17:52:58 2025 |
Luis | Update | VAC | MR Testing Continuation | [Luis, Luke]
RGA Volume:
T = 22°C, P = 2.10e-9 Torr
Main Volume: |
|
|
490
|
Mon Dec 16 21:32:21 2024 |
Luis | Update | VAC | MR Testing | [Luis, Luke]
The MR material was
placed in the vacuum chamber following standard
procedures to ensure the vacuum remained |
|
|
494
|
Sun Dec 22 20:43:35 2024 |
Luis | Update | VAC | MR Testing | [Luis, Luke]
RGA Volume:
T = 23°C, P = 3.0e-9 Torr
Main Volume: |
|
|
467
|
Tue Nov 5 09:56:04 2024 |
Luis Martin | Update | Clean & Bake | MR Bake | [Luke, Luis]
On Friday, 11/1/24,
the MR was unpackaged and cleaned under the |
|
|
329
|
Mon Feb 19 14:40:21 2024 |
Shane | Update | CDS | MEDM screen for FROSTI temp readouts | Here's the latest draft of the MEDM screen
for the FROSTI heating elements' temperature
readouts. Note that the MEDM screen isn't |
|
|
346
|
Thu Feb 29 17:16:48 2024 |
Shane | Update | CDS | MEDM screen for FROSTI T/P readouts | Here's the latest draft of the MEDM screen
for the FROSTI temp and power readouts, now
with a button linking to the c1msc file display. |
|
|
334
|
Wed Feb 21 23:15:07 2024 |
Michael | Update | Interferometer Simulations | Long Shoelaces 1 Layout Created in Gtrace and Fixed Ghosting in Beamsplitter | I have created the long shoelaces 1 layout
for cosmic explorer using gtrace, a slight
modification from the shoelaces 1 layout |
|
|
317
|
Tue Feb 6 22:40:25 2024 |
Michael | Update | Scripts/Programs | Long Crab 1 Design Created In Gtrace | Worked on and completed the python code for
the simulation of the Long Crab 1 layout
for Cosmic Explorer basing off of Pooyan's |
|
|
476
|
Wed Nov 20 12:31:24 2024 |
Luis | Update | VAC | Leak test RGA Scan after vacuum repairs | [Luke, Luis]
After the gasket replacement performed
on Monday (11/18/24) we let the vacuum pump |
|
|
474
|
Tue Nov 19 17:10:34 2024 |
Luke | Update | VAC | Leak check | Chamber temperature: 23C
Chamber Initial Pressure: ~1.8e-8
main, ~3.5e-8 rga |
|
|
462
|
Wed Oct 23 11:48:06 2024 |
Luis Martin | Update | VAC | Leak Test Results | [Luke, Luis, Mary, Ma]
On 10/22/24 Luke, Ma, Mary and myself
ran a leak test, the results are displayed |
|