| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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) |
|
|
577
|
Tue May 13 12:41:06 2025 |
Tyler | Update | TCS | A# Profiles Update | Slides on the A# ITM FROSTI profile modeling
efforts can be found here. |
|
|
576
|
Tue May 13 12:35:01 2025 |
Xuesi Ma | Update | | | |
|
|
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. |
|
|
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 |
|
|
573
|
Thu May 8 17:41:56 2025 |
Luis | Update | VAC | RGA Scan Post Bake | [Ma, Luis]
After taking the RGA scans of
the new system, here are the results of the |
|
|
572
|
Tue May 6 13:19:31 2025 |
Xuesi Ma | Update | | | |
|
|
571
|
Tue May 6 13:07:34 2025 |
Michael | Update | Interferometer Simulations | Initial Convergence Plots for Toroidal Mirrors Project | |
|
|
570
|
Tue May 6 12:25:03 2025 |
Tyler | Configuration | CDS | Cymac ADC CSD measurement | An initial measurement of the cymbal ADC CSD
is attached below. As of now, it seems that
the sensitivity limit is roughly the same |
|
|
569
|
Sun May 4 18:17:45 2025 |
Luke | Update | Scripts/Programs | Ringheater modeling Update | Slides
I have changed some properties
of the thermal model and am re-running the |
|
|
568
|
Fri May 2 12:34:02 2025 |
Xuesi Ma | Update | VAC | Stopped bake | The
vacuum chamber has stopped baking.
Current state as of 12:30, 5/2/2025: |
|
|
567
|
Wed Apr 30 17:33:14 2025 |
Xuesi Ma | Update | VAC | Started bake | [Luke, Ma, Tyler]
The
vacuum chamber is currently baking. |
|
|
566
|
Wed Apr 30 15:43:56 2025 |
Luis | Update | VAC | Vacuum Update | [Ma, Luke, Luis]
April 29, 2025
3:30 PM |
|
|
565
|
Wed Apr 30 13:42:45 2025 |
Shane | Update | CDS | UPS comms successful | Update on UPS1 serial interfacing: communication
is now successful. On 4/15/25 we connected
to UPS1 via ethernet rather than USB, and |
|
|
564
|
Tue Apr 29 10:59:25 2025 |
Liu | Update | Interferometer Simulations | Test Mass Thermal State Decoder with Updated Comparison Cases | |
|
|
563
|
Mon Apr 28 22:08:28 2025 |
Luis | Update | VAC | Vacuum Leak Test result | [Ma, Luke, Luis]
April 24, 2025
3:00 PM |
|
|
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 |
|
|
561
|
Fri Apr 25 09:09:03 2025 |
Luke | Update | Scripts/Programs | Update to optimization plots | I have calculated the curvature of the surface
plots and created a heat map out of the data.
I have also created a contour plot of them |
|
|
560
|
Tue Apr 22 13:00:04 2025 |
Nathan | Update | VLC Update | Photodiode signal check and additional signal check due to 20Mhz signal and amplifier | In general, photodiode was able to achieve
signal. Below are the voltage signals and
frequency measurements of the photodiode |
|
|
559
|
Tue Apr 22 12:08:46 2025 |
Xuesi Ma | Update | | | Test 7: Reconnect ribbon cables
Setup: Reconnect all
the ribbon cables, and turned on the AI Chassis |
|
|
558
|
Tue Apr 22 11:04:31 2025 |
Liu | Update | Interferometer Simulations | Test Mass Thermal State Decoder Update with Interferometer Operation | |
|
|
557
|
Tue Apr 22 08:00:39 2025 |
Luke | Update | Scripts/Programs | Thermal optimization modeling 40kg | I have redone the width and location optimization
with a 40kg test mass. This was to see where
the nominal ring heater would fall in this |
|
|
556
|
Mon Apr 21 16:56:42 2025 |
Michael | Update | Interferometer Simulations | Fixed Observed Squeezing Curve for Toroidal Mirror Case | We've resolved the issue with the observed
squeezing curve for the toroidal mirror case
showing worse performance at lower frequencies |
|
|
555
|
Thu Apr 17 12:12:29 2025 |
Liu | HowTo | Interferometer Simulations | Preventing Thread Contention in Multiprocessing with Finesse and Cython |
Avoiding Thread
Contention When Using Multiprocessing |
|
|
554
|
Tue Apr 15 11:37:17 2025 |
Cynthia | Update | Interferometer Simulations | Finishing up mirror coating map step | |
|
|
553
|
Tue Apr 15 11:13:43 2025 |
Xuesi Ma | Update | | | Test 4: AI Chassis ground isolation
Setup: AI Chassis isolated
from the ground with readout directly connected |
|
|
552
|
Tue Apr 15 11:09:37 2025 |
Liu | Update | FLIR | Test Mass Thermal State Decoder Update with robustness study | |
|
|
551
|
Tue Apr 8 20:04:35 2025 |
Nathan | Update | VLC Update | PDH Lock Progress | Connected the DC bias and mixer. Need to connect
signal generator now to RF Amp and mixer,
and also need to connect power supply. After |
|
|
550
|
Tue Apr 8 12:15:59 2025 |
Luke | Update | Scripts/Programs | Updated optimization plot | |
|
|
549
|
Tue Apr 8 10:47:10 2025 |
Liu | Update | General | Test Mass Thermal State Decoder Update | |
|
|
548
|
Tue Apr 8 00:17:01 2025 |
Michael | Update | Interferometer Simulations | Squeezing Performance Graphs for Case With and Without Toroidal Mirrors in LIGO | I've created some graphs for the frequency
dependent observed squeezing level in LIGO
for both the nominal case and the case where |
|
|
547
|
Mon Apr 7 13:28:49 2025 |
Xuesi Ma | Update | | | Test 1: Adapter Board Connected to Filter
Board
Setup:
AI Chassis is powered on. Signal is measured |
|
|
546
|
Thu Apr 3 13:23:37 2025 |
shane | Update | CDS | UPS interfacing | Update on UPS serial interfacing: the driver
for the UPS webcard has been installed on
spica (for UPS1 in room 1119) and logrus |
|
|
545
|
Tue Apr 1 11:47:08 2025 |
Liu | Update | | | |
|
|
544
|
Mon Mar 31 15:41:56 2025 |
Xuesi Ma | Update | | | The result from AI Chassis bypass test
showed that the AI Chassis may be the problem.
There are no spikes from DAC's direct output. |
|
|
543
|
Mon Mar 31 11:26:45 2025 |
Luke Johnson | Update | Scripts/Programs | Heatmaps of power delivery performance | These plots show the required temperature
to release 100W of power and the efficiency
of a particular configuration with half-width |
|
|
542
|
Tue Mar 25 12:56:47 2025 |
Tyler | Update | TCS | FROSTI Analysis Finalization | Upon final review of the FROSTI analysis
included in the (hopefully) soon-to-be submitted
instrument paper, I've made some adjustments |
|
|
541
|
Sun Mar 23 15:39:06 2025 |
Luke Johnson | Update | Scripts/Programs | Ringheater Location optimization | Attached are some plots that show a new parameter
sweep with a finer mesh then before. I have
also been able to get a heatmap of power |
|
|
540
|
Tue Mar 11 11:28:52 2025 |
Cynthia | Update | Interferometer Simulations | flattening mirror to study power discrepency | |
|
|
539
|
Tue Mar 11 10:43:57 2025 |
Xuesi Ma | Update | | | Continue investigation in the spikes
Pulsed ADC with a function generator
and find no spikes. Rules out ADC for causing |
|
|
537
|
Mon Mar 10 21:32:29 2025 |
Nathan | Physics | Electronics | Beam Profiling and PBS Measurements | Beam wasn't diverging, however maybe was about
to diverge when measurements stopped? Will
discuss the PBS measurements and how the |
|
|
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 |
|
|
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 |
|
|
534
|
Wed Mar 5 18:13:20 2025 |
Shane | Update | CDS | vac system comms |
[Shane, Jon]
Update on the serial interfacing with
the Inficon VGC503 pressure gauge: We began |
|
|
533
|
Wed Mar 5 12:16:28 2025 |
Shane | Update | CDS | Vac system communications update |
[Shane, Jon]
Update on the serial interfacing
with the vacuum system: both turbo pumps |
|
|
532
|
Tue Mar 4 10:47:03 2025 |
Shane | Update | CDS | Vac system pinouts | Attached here are the pinouts, as we currently
know them, for the vacuum system. The three
items focused on here are the Agilent TwissTorr |
|
|
531
|
Tue Mar 4 10:28:58 2025 |
Tyler | Update | TCS | RIN Plot Updates | |
|
|
530
|
Tue Mar 4 10:18:43 2025 |
Cynthia | Update | Interferometer Simulations | attempted to remove curvature and tilt for the coating | |
|
|
529
|
Tue Mar 4 03:33:18 2025 |
Xuesi Ma | Update | | Update | Spikes Appear Again, need to address it
systematically.
Power on and off before reaching |
6x |
|
528
|
Tue Mar 4 03:05:42 2025 |
Xuesi Ma | Update | ELOG | LOG | 1424564097.243212 2025/02/26 00:14:39 UTC Time
start
12V 2A right after start all 8 elements |
|