| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
392
|
Mon Jul 1 15:19:42 2024 |
Cynthia | Update | Interferometer Simulations | O4 and O5 mirror cavity scans with thermal effect | |
|
|
578
|
Thu May 15 12:03:41 2025 |
Xuesi Ma | Infrastructure | Electronics | Notice | All Sorensen power supplies are turned
off. The Cymac system is down (All Chassis
are down) |
|
|
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: |
|
|
562
|
Fri Apr 25 19:18:10 2025 |
Luke | Update | Scripts/Programs | New optimization plots | I have created two more plots. One on the
transmitted power for a specific configuration.
This was done by taking the product of the |
|
|
575
|
Sun May 11 19:36:42 2025 |
Luke | Update | Scripts/Programs | New optimization plots | Slides
I have re-run the optimization plots
with the changes mentioned last week. |
|
|
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 |
|
|
616
|
Tue Jul 29 11:27:57 2025 |
Liu | Update | Interferometer Simulations | Multi-ring FROSTI optimization for A# | |
|
|
625
|
Tue Aug 12 12:16:21 2025 |
Liu | Update | Interferometer Simulations | Multi-ring FROSTI optimization for A# | Multi-ring FROSTI optimization for A# with
static polishing |
|
|
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 |
|
|
617
|
Tue Jul 29 11:45:19 2025 |
Maple | Update | TCS | Meeting update | |
|
|
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. |
|
|
593
|
Wed Jun 11 16:33:45 2025 |
Pooyan | Update | Computers | Luke's ray tracing hosting |
Hosted Lukes model on Chimay. It's
available at https://richardsonlab.ucr.edu/real-time-frosti
The
sourcecode is at Github. |
|
|
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 |
|
|
273
|
Mon Nov 20 20:45:16 2023 |
Aiden | Update | VAC | Leak Test |
[Aiden, Luis]
Tested every weld
and flange to find leaks. Only found that
the flange on the turbo pump and reducing |
|
|
116
|
Tue Jun 6 16:15:09 2023 |
Peter | Update | VLC Update | Launch Optics for Visible Light Cavity | I assembled the first few components of the
launch optics for the visible light cavity.
Below is an image of the current table configuration, |
|
|
337
|
Fri Feb 23 15:01:48 2024 |
Shane | Update | CDS | Latest draft of MEDM screen for FROSTI readouts | Here's the latest draft of the MEDM screen
for the FrOSTI temp and power readouts. Also,
debugged the text readout boxes so they're |
|
|
495
|
Mon Dec 23 14:33:36 2024 |
Tyler | Update | TCS | Latest RIN Measurement Results | Attached below are the measurements I took
from the FROSTI from 12/18-12/22. |
|
|
62
|
Tue Apr 4 09:53:37 2023 |
Peter | Update | VLC Update | Laser intensity/polarization drift measurements | The set up for the next round of beam characterization
measurements has begun. The beam is initially
passing through a half waveplate, is split |
|
|
65
|
Thu Apr 6 10:20:43 2023 |
Peter | Update | VLC Update | Laser intensity/polarization drift measurements | More optical components were added to the
optical set up for laser intensity / polarization
drift measurements. Both lenses and both |
|
|
83
|
Fri Apr 28 11:21:01 2023 |
Peter | Update | VLC Update | Laser intensity/polarization drift measurements | The Digi-key cables have arrived, and I have
began implementing them in the intensity
drift measurements.
There was a slight |
|
|
102
|
Mon May 22 16:43:28 2023 |
Peter | Update | VLC Electronics | Laser intensity/polarization drift measurements | In order to fully analyze the polarization
data taken last Thursday, I needed to convert
the signal output (which is in volts) to |
|
|
107
|
Wed May 24 14:28:26 2023 |
Peter | Update | VLC Electronics | Laser intensity/polarization drift measurements | I went in and took polarization drift data
for 16 hours. The run started at 6:08pm and
finished at 9:15am the next day. The four |
|
|
21
|
Sat Feb 4 17:01:03 2023 |
Peter | Update | VLC Electronics | Laser Data | Peter and Ryan took laser beam data. Configuration:
100mm focal length lens is ~100mm from lens.
150mm focal length lens is ~200mm from first |
|
|
46
|
Wed Mar 8 18:35:52 2023 |
Pamella | Update | | Lab cleaning | Today Pamella finished cleaning of the cleanroom,
starting with the HEPA vacuuming, mopping
and clearing all floor with IPA wipes.
Also |
|
|
68
|
Tue Apr 11 17:56:15 2023 |
Pamella | Update | General | Lab cleaning | Today Pamella and Julian finished cleaning
of the cleanroom, starting with the HEPA
vacuuming, mopping and clearing all floor |
|
|
605
|
Mon Jul 7 17:44:04 2025 |
Tyler | Update | General | Lab Organization | [Tyler, Pooyan, Ma, Cece, Luke, Luis, Christina,
Maple]
After acquiring some new equipment
for the labs, a few of us spent time on Thursday |
|
|
257
|
Wed Nov 8 17:55:49 2023 |
Jon | Update | General | Lab Clean-Up Day 1 | [Jon, Tyler, Shane, Peter, Luis]
Today we completed the first phase
of lab clean-up. Activities included: |
|