| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
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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 |
|
|
182
|
Mon Jul 31 12:39:01 2023 |
Shane | Update | Electronics | LED cable assemblies installed | Today I put together the two LED cable assemblies
for the CyMAC and mounted them in the anti-aliasing
and anti-imaging chassis. |
|
|
134
|
Tue Jun 27 14:04:42 2023 |
Sophia A. | Update | Measuring Noise in Interferometer | Interferometer set up and connection to red pitaya | Today we (Sophia and Tyler) constructed the
set-up for the electrical noise calculation
that I will be conducting this summer. I |
|
|
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 |
|
|
87
|
Mon May 1 17:10:25 2023 |
Julian, Cao | Physics | VAC | Installing Pirani gauge and RGA probe onto to vacuum chamber | [Julian, Cao]
03:00 pm: Particle
count
: Zone 3
|
|
|
11
|
Mon Oct 3 17:21:39 2022 |
Cao | Update | TCS | Inspection of macor parts | The macor parts arrived and inspected today.
These include:
Macor spacer
(drawing: LIGO_Redesign_Macor_Spacer_Drawing_v4.pdf |
7x |
|
582
|
Mon May 26 23:24:33 2025 |
Michael | Update | Interferometer Simulations | Initial Monte Carlo Simulations for Toroidal Mirrors Project | I've run an initial Monte Carlo simulation
for statistical comparison of toroidal mirrors
for the dual FROSTI TCS case. Below is the |
|
|
571
|
Tue May 6 13:07:34 2025 |
Michael | Update | Interferometer Simulations | Initial Convergence Plots for Toroidal Mirrors Project | |
|
|
373
|
Mon Jun 3 14:14:39 2024 |
Tyler | Update | FLIR | Initial CIT FROSTI Analysis | [Tyler]
Attached below are the initial
results of the CIT FROSTI testing analysis.
|
|
|
323
|
Tue Feb 13 11:54:45 2024 |
Tyler | Configuration | FLIR | In-Air Optical Test Configuration |
Below is the proposed schematic for FROSTI
optical testing, chosen so enough space is
allotted for prototype assembly.
|
|
|
349
|
Tue Mar 19 10:55:30 2024 |
Tyler | Update | FLIR | In-Air Optical Test | Below is an image I took using the FLIR just
before leaving for the LVK meeting. The profile
is roughly what we would expect (annular). |
|
|
468
|
Tue Nov 5 11:08:40 2024 |
Luis Martin | Update | VAC | ISO Test |
[Luis, Luke, Ma Michael]
The isolation test
was conducted on the vacuum system. Every |
|
|
6
|
Tue Jun 21 18:31:49 2022 |
Cassidy and Phoebe | Update | Cameras | IR Absorbing Screen and FLIR Camera Setup | Today we set up the IR absorbing screen and
the camera on the optical table, as well
as tested that the camera was functioning |
|
|
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 |
|
|
1
|
Sun Apr 10 15:39:49 2022 |
Rutuja Gurav | HowTo | Computer Scripts/Programs | HowTo: Renew the Let's Encrypt SSL certificate using certbot | Port 80 is kept closed by default. This
might be causing the certbot auto-renewal
cronjob to fail. Therefore we must renew |
|
|
98
|
Sun May 14 15:50:48 2023 |
Cao | Infrastructure | Computers | High resolution display of logrus machine | [Cao]
The display resolution of the
logrus has been 1064x768 and has been the
only option, which is not great. While remote |
|
|
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 |
|
|
435
|
Fri Sep 6 14:34:52 2024 |
Luke | Update | VAC | Heating tape work | On the 5th I had tried to start baking
the vacuum chamber however certain parts
of the chamber were getting too hot and causing |
|
|
124
|
Wed Jun 14 15:35:36 2023 |
Pamella | Update | VAC | Heating system installation | [Pamella and Cao]
Heating system
installation - Second day.
Today we kept installing the equipment |
|
|
433
|
Tue Sep 3 15:52:56 2024 |
Luke | Update | VAC | Heater tape initilization | [Luke, Tyler, Jon]
On the 3rd we set up the pid controllers
for the heater tapes and after putting on |
|
|
119
|
Mon Jun 12 18:52:00 2023 |
Pamella | Update | General | Heater system parts - Wiped and bagged | [Pamella]
Cleaning the heater system
parts.
04:32 pm: Started wiping the
heater system parts.
06:38 pm: |
|
|
128
|
Tue Jun 20 17:28:23 2023 |
Pamella | Update | Electronics | Heater system parts - Wiped | [Pamella]
Heating system
Wiping the heater system parts.
04:37 pm: Started wiping the electronic |
|
|
122
|
Tue Jun 13 21:08:46 2023 |
Pamella | Infrastructure | VAC | Heater system - Installation | [Pamella, Cao and Jon]
Heating system
installation
Today we
started installing the equipments for the |
|
|
503
|
Mon Jan 27 11:29:38 2025 |
Xuesi Ma | Update | | Heater Element Test | [Ma, Cece, Luke, Mary, Shane]
On Friday (Jan 24), we installed
the heater elements on the stand. The heater |
|
|
316
|
Mon Feb 5 14:17:52 2024 |
Aiden | Update | VAC | Heater Element RGA Scan | Here are the new RGA scans for the powered
Heater elements. The pressure at the time
of taking data was 2.88 e-8 torr. The HC |
|
|
319
|
Thu Feb 8 17:37:48 2024 |
Aiden | Update | VAC | Heater Element RGA Scan | Took more RGA data now that the heaters are
powered by 18V. The pressure of the system
during the data taking was 3.8 e-8 torr. |
|
|
320
|
Mon Feb 12 17:35:47 2024 |
Aiden | Update | VAC | Heater Element RGA Scan | Took more RGA data before and after increasing
the heater elements to 300 degC and before
heating them up.
|
|
|
328
|
Mon Feb 19 14:17:50 2024 |
Aiden | Update | VAC | Heater Element RGA Scan | Three days after the completion of Bake 11,
the Heater elements RGA scan looks much cleaner.
The HC level is back down to 33 e-10 torrl/s |
|
|
506
|
Fri Jan 31 15:03:09 2025 |
Xuesi Ma | Update | | Heater Element Circuit Check |
table {
width:
100%;
border-collapse: collapse;
/* Merges borders into a single line */
|
|
|
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 |
|
|
7
|
Mon Jul 11 14:29:45 2022 |
Jon | Omnistructure | General | HEPA filter installed | Today I unpacked and installed the new HEPA
filter for the lab. It is an Omni CleanAir
OCA1210 capable of 1200 CFM. This flow rate |
|
|
515
|
Tue Feb 18 10:02:16 2025 |
Xuesi Ma | Update | | Group Meeting Slides 2/18/2025 | https://docs.google.com/presentation/d/1WiV2VqS0BzXNCK6VYYQ-Ty8xlHnzXatQaFbMf1-0rsY/edit?usp=sharing |
|
|
451
|
Wed Oct 2 10:31:46 2024 |
Xuesi Ma | Configuration | | Group Meeting Slides 10/2/2024 |
Group Meeting slides for Non-deterministic
Heater Response.
|
|
|
82
|
Thu Apr 27 21:43:07 2023 |
Jon | Physics | VAC | Grounding vacuum system | This afternoon I made up a green 10 AWG
grounding cable and connected it to the vacuum
system. |
|
|
84
|
Fri Apr 28 18:16:57 2023 |
Cao | Physics | VAC | Grounding vacuum system |
|
|
|
187
|
Tue Aug 1 16:22:35 2023 |
Celeste | Update | TCS | Graphical Updates to HOM RH Modification, Tuesday 8/1 | Slides 20-33 are newly added (data/graphs
from parameter sweep feature-1/8th heater
unit length varied from 10% of original to |
|
|
180
|
Fri Jul 28 17:45:45 2023 |
Celeste | Update | TCS | Graphical Updates to HOM RH Modification, Friday 7/28 | Updated 1/8th Heater simulation modification
graphs. Slides 7, 10, 16-19 are new additions. |
|
|
173
|
Thu Jul 27 10:18:43 2023 |
Celeste | Update | TCS | Graphical Updates to HOM RH Modification | Attached are updated graphs of the irradiance
distribution from the 1/8th ring heater units
(extruded and reduced in length). |
|
|
158
|
Sun Jul 16 15:21:56 2023 |
Pamella | Update | General | General update about some problems in the lab. | [Pamella]
General information about
the lab facility.
Changed sticky floor mats, because close |
|
|
331
|
Tue Feb 20 11:31:49 2024 |
Tyler | Update | Cleanroom | Garment Cabinet Door Replacement | [Luis, Luke, Pooyan, Tyler]
The replacement
door for the HEPA garment cabinet arrived
last week, and was installed on Thursday. |
|
|
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 |
|
|
389
|
Fri Jun 28 10:43:13 2024 |
Xuejun | Update | Cleanroom | Frosti | [Xuejun, Tyler]
We moved Frosti into
the cleanroom and debugged it to make sure
everything was working. One of the DB25 pins |
|
|
393
|
Fri Jul 5 13:17:44 2024 |
Liu | Update | Interferometer Simulations | Four-quadrant FROSTI-like RH for astigmatic thermal actuation for CE optics | In the CE corner layout design and down selection
study, interferometer layouts with large
incidence angles on some of the curved optics |
7x |
|
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 |
|
|
90
|
Tue May 2 17:03:14 2023 |
Jon, Cao | Physics | VAC | First pump-down test of vacuum chamber | [Jon, Cao]
1. Re-routing of cables
|
|
|
554
|
Tue Apr 15 11:37:17 2025 |
Cynthia | Update | Interferometer Simulations | Finishing up mirror coating map step | |
|
|
181
|
Fri Jul 28 18:03:07 2023 |
Pamella | Update | FLIR | Final plot - FLIR | [Pamella]
I was able to
plot the final result with the data to the
heater. I attached below the "3Combined_HighTemp_Gaussian_Plot." |
|
|
516
|
Tue Feb 18 10:12:39 2025 |
Tyler | Update | TCS | Final RIN Plot Update |
Below is a preview of the final RIN figure
that will be included in the FROSTI instrument
paper. A quick summary of what is shown below:
|
|
|
460
|
Wed Oct 16 14:13:31 2024 |
Liu | Update | | FROSTI with non uniform absorption scattering sources | Slides |
|
|
347
|
Wed Mar 6 09:57:52 2024 |
Tyler | Update | TCS | FROSTI Wiring | Upon finishing the FROSTI assembly last
week, we ran into some electrical issues.
An electrical short was found between two |
|