| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
726
|
Thu Jul 2 13:27:48 2026 |
Joshua Marmor | Update | General | HBT SURF Update #1 | Update on the progress for the HBT measurement. |
|
|
727
|
Thu Jul 2 14:46:19 2026 |
Xuesi | Update | | FROSTI Reflector Design | Update on the FROSTI reflector design
slides |
|
|
728
|
Mon Jul 6 18:25:26 2026 |
shane | Update | Inventory | Cleaning/PPE inventory |
The cleaning
supply/PPE inventory has now been fully updated
and the spreadsheet can be viewed here. |
|
|
730
|
Thu Jul 9 12:13:02 2026 |
Abhiram Sharma | Update | Interferometer Simulations | | Update on MCMC SURF project |
|
|
731
|
Thu Jul 9 12:27:20 2026 |
Joshua Marmor | Update | General | Week 2 HBT Surf Project | Slides for group meeting, updates on HBT measurement |
|
|
733
|
Thu Jul 9 13:35:08 2026 |
Mary | Update | Interferometer Simulations | | |
|
|
736
|
Thu Jul 16 10:29:19 2026 |
Joshua | Update | General | HBT SURF Update #3 |
[Joshua, Mary, Ma, Abhi]
On Wednesday (7/15), the particle
count measurement was sufficient, so the |
|
|
737
|
Thu Jul 16 10:52:02 2026 |
Joshua | Update | General | HBT SURF Update #3 - group meeting slides | |
|
|
738
|
Thu Jul 16 13:14:26 2026 |
Cynthia | Update | Interferometer Simulations | LIGO pre-figuring team meeting summary | Pre-figuring meeting 7/14:
- the
non-uniformity brought by annealing for ETM14
and 11 seems to be higher than expected, |
|
|
739
|
Tue Jul 21 15:47:55 2026 |
Joshua | Update | General | HBT SURF Update #4 - Alignment & First Measurement |
HBT Alignment & First Measurement
HBT
setup was aligned for maximum power on the
transmissive arm, then the beamsplitter was |
|
|
740
|
Tue Jul 21 17:58:36 2026 |
Pooyan | Update | CDS | Cymac DAQ channel add for long-term recording | Changed the sample rate of Cymac ADC channels
V3 and VREF6 to 65 kHz for long-time recording.
(65536 to be exact) |
|
|
741
|
Sun Jul 26 13:07:04 2026 |
Cece | Update | Inventory | Vacuum Part Inventory | Took a more comprehensive inventory of the
vacuum chamber parts on the optical table
in 1129. Made note of scratches, chips, stains |
|
|
742
|
Wed Jul 29 23:56:29 2026 |
Cynthia | Update | Interferometer Simulations | Pre-figuring meeting 7/28 summery | Pre-figuring meeting 7/14:
- using
the change in surface from annealing, Hiro
did some study on HOM scattering/losses from |
|
|
743
|
Thu Jul 30 14:15:52 2026 |
Joshua | Update | General | HBT SURF Update #5 - Group Meeting Slides | Attached are my group meeting slides and some
calculations from Mary which predict the
photon bunching cross correlation signal. |
|
|
745
|
Thu Aug 6 10:46:49 2026 |
Abhiram Sharma | Update | Interferometer Simulations | MCMC Test with Synthetic Data | This corner plot was generated using the base
finesse-ligo LLO model for the MCMC forward
model. The prior distributions were centered |
|
|
746
|
Thu Aug 6 14:39:47 2026 |
Joshua | Update | General | Heating Element Power Data |
This is a measurement done to determine
which heating elements output the most power.
FROSTI was supplied 33V, and a photodetector |
|
|
10
|
Wed Aug 17 16:04:30 2022 |
Phoebe Zyla | Summary | Lore | Testing the Cartridge Heater and Collecting FLIR Data | We have tested the heater to find emissivity,
mounted the heater system to the optical
table, and have taken irradiance maps of |
|
|
19
|
Fri Feb 3 13:04:04 2023 |
shane | Summary | General | clean room particle counts 1/25/23 | Clean room count graphs for each zone (as
of January 25, 2023) attached |
|
|
29
|
Mon Feb 13 18:57:53 2023 |
Aiden | Summary | General | Clean and Bake batch 2 | Cleaned second batch of SS parts with liquinox
for 20 min. Then put in oven for 5 steps;
1. Ramp, 100 degC, 15 min 2. Const, 100 degC, |
|
|
31
|
Tue Feb 21 17:51:04 2023 |
Aiden | Summary | General | Clean and Bake batch 4 | Bagged and Tagged batch 3 parts by placing
no more than two part numbers per bag and
taped them with kapton tape and labeled them |
|
|
38
|
Tue Feb 28 19:37:22 2023 |
Aiden | Summary | General | Clean and Bake batch 5 | Bagged and Tagged batch 4 parts by placing
no more than two part numbers per bag and
taped them with kapton tape and labeled them |
|
|
42
|
Fri Mar 3 19:13:33 2023 |
Aiden | Summary | General | Clean and Bake Batch 6 | Started to clean the dirtiest of the valves.
I could not finish but I definitely made
good progress on it. The MDC valve is very |
|
|
47
|
Wed Mar 8 19:29:00 2023 |
Aiden | Summary | General | Clean and Bake batch 7 | Today gave another cleaning to the MDC gate
valve. It is still very dirty an will need
more cleaning. I also cleaned the other 3 |
|
|
51
|
Tue Mar 14 18:21:41 2023 |
Aiden | Summary | General | Clean and Bake batch 8 | Starting off Peter and I refilled the deionized
water barrel.
Then Aiden Cleaned and Bake
the FROSTI arms and bases in liquinox for |
|
|
52
|
Fri Mar 17 19:46:39 2023 |
Aiden | Summary | General | Clean and Bake batch 9 | Bagged and Tagged the reflector arms and bases
and placed them inside the clean room. Total
of 2 bags used. Cleaned and Baked parts in |
|
|
60
|
Mon Apr 3 17:04:05 2023 |
Aiden | Summary | General | IDP Scroll Pump Assembly | Aiden installed the isolation valve and the
exhaust silencer kits on the IDP-3 Scroll
pump. The entire assembly still needs to |
|
|
69
|
Wed Apr 12 10:53:02 2023 |
Aiden | Summary | General | Valve Cleaning | Bagged and Tagged the parts from batch 10
and placed them inside the clean room.
Then
cleaned the last gate valve in liquinox for |
|
|
72
|
Mon Apr 17 17:06:49 2023 |
Aiden | Summary | General | Clean and Bake batch 11 | Cleaned the Viton O-Ring for the main chamber
in Liquinox for 10 minutes. Then put it in
the oven to back for;
1. Ramp to 100 degC |
|
|
77
|
Mon Apr 24 17:38:45 2023 |
Aiden | Summary | General | Clean and Bake Batch 12 | Today I Bagged and tagged the o-rings from
batch 11 and placed them inside the clean
room. I also cleaned batch 12 parts in liquinox |
|
|
80
|
Thu Apr 27 09:48:34 2023 |
Aiden | Summary | General | Batch 12 Bagging | I took batch 12 out of the oven and put them
in a bag and placed the bag inside the clean
room in the first large stainless steel container.
I |
|
|
86
|
Fri Apr 28 19:39:19 2023 |
Cao | Summary | General | Clean and Bake Leybold TTR 91 Pirani Gauge |
|
|
|
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. |
|
|
121
|
Tue Jun 13 13:25:05 2023 |
Aiden | Summary | Clean & Bake | Clean and Bake Batch 13 | Cleaned and Baked the new 1.33" and 2.75"
blanks for the vacuum system. Cleaned them
with liquinox in the ultra sonic washer for |
|
|
148
|
Thu Jul 6 16:16:03 2023 |
Aiden | Summary | VAC | Vacuum Chamber Baking Update |
Pressure Measured Before Removing Gauge
2.31 E-7 Torr.
Went in and turned
on the heating tape in increments of 30 degC |
|
|
291
|
Mon Dec 11 16:20:17 2023 |
Jon | Summary | TCS | FROSTI Assembly Procedure | Below is the procedure we will follow to
assemble the FROSTI prototype.
Install SS guide rods and |
|
|
312
|
Wed Jan 31 14:37:26 2024 |
Shane | Summary | CDS | path directions for CyMAC model and parts library | Path to cds parts library in Matlab simulink:
/usr/share/advligorts/src/src/epics/simLink.
File name CDS_PARTS.mdl
Path to user models: |
|
|
472
|
Thu Nov 14 10:46:20 2024 |
Luke | Summary | Cleanroom | Cleanroom cleaning |
[Luke, Luis, Michael]
cleaning cleanroom and particle count |
|
|
478
|
Wed Nov 27 12:27:45 2024 |
Luke | Summary | VAC | Summary of vacuum work | [Luke, Luis]
Update of current state of vacuum
chamber |
|
|
497
|
Wed Jan 8 17:35:57 2025 |
Luke | Summary | Cleanroom | Cleanroom cleaning | [Luke, Tyler, Cynthia, Shane, Michael]
Summary of Cleaning Activities:
We began cleaning Room 1119 at 2:00 |
|
|
500
|
Tue Jan 21 10:12:02 2025 |
Luke | Summary | General | Frosti toy model | [Luke, Liu]
Over the winter break I have been
working on this |
|
|
507
|
Sat Feb 1 17:25:52 2025 |
Luke | Summary | General | Cleanroom cleaning | [Luke, Cece, Luis]
Particle Count Measurements:
Pre-cleaning (12:15 |
|
|
509
|
Fri Feb 7 12:25:56 2025 |
Luke | Summary | VAC | Started bake | [Luke, Luis]
The
vacuum chamber is currently baking. |
|
|
520
|
Sun Feb 23 12:11:43 2025 |
Luke | Summary | Cleanroom | Cleanroom cleaning | [Luke, Mary, Luis]
Particle Count Measurements:
Pre-cleaning (8:40 |
|
|
574
|
Fri May 9 20:06:27 2025 |
Luke | Summary | Cleanroom | Cleanroom cleaning | [Luke, Mohak, Luis]
We were also able to remove the residue
that has built up on the soft walls by donning |
|
|
609
|
Mon Jul 14 20:45:20 2025 |
Luke | Summary | Cleanroom | HEPA filter performance metrics | [Luke, Luis]
We’ve been looking into methods
for evaluating the performance of the HEPA |
|
|
704
|
Fri Apr 24 23:55:50 2026 |
Dhatri | Summary | Interferometer Simulations | | [Sidd, Pooyan, Dhatri] In the group meeting on 04/23/26, we |
|
|
710
|
Tue May 5 14:13:45 2026 |
Dhatri | Summary | Interferometer Simulations | Mode mismatch | [Pooyan, Tyler, Ceci, Dhatri]
Attached are the plots generated by
running the newer code here for input power |
|
|
23
|
Tue Feb 7 17:27:30 2023 |
Aiden | Physics | ELOG | Clean and Bake Batch #1 | Cleaned SS parts with liquinox for 20 min.
Then put in oven for 5 steps;
1. Ramp, 100
degC, 15 min
2. Const, 100 degC, 30 min
3. |
|
|
70
|
Wed Apr 12 16:13:19 2023 |
Cao | Physics | VAC | Vacuum prep and installation | Aiden, Pamella, Peter, Shane, Cao
Today
we started vacuum chamber assembly work
10:16 am: Particle count measurement of clean |
|
|
81
|
Thu Apr 27 16:23:44 2023 |
Cao, Pamella and Julian | Physics | VAC | Installing vacuum system (cont.) |
[Pamella, Cao and Julian, Shane]
Particles account
10:37 am: Starting the particles account |
|