| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
204
|
Fri Aug 11 10:57:20 2023 |
Celeste | Update | TCS | 8/11/23 Simulation Progress | |
|
|
209
|
Tue Aug 15 16:10:06 2023 |
Celeste | Update | TCS | 8/15/2023 Simulation Progress | |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
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 |
|
|
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 |
|
|
84
|
Fri Apr 28 18:16:57 2023 |
Cao | Physics | VAC | Grounding vacuum system |
|
|
|
85
|
Fri Apr 28 19:00:13 2023 |
Cao | Physics | VAC | Tighten CF ports on vacuum chamber | [Cao]
After Jon's comment yesterday
that some of the connection did not seem
to have good metal-metal contact, in particular |
|
|
86
|
Fri Apr 28 19:39:19 2023 |
Cao | Summary | General | Clean and Bake Leybold TTR 91 Pirani Gauge |
|
|
|
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 |
|
|
130
|
Wed Jun 21 20:25:05 2023 |
Cao | Infrastructure | VAC | Vacuum chamber bake attempt 1 | TL;DR:
We are not yet able to
bake the chamber at 150 deg C due to some
current limit, most likely caused power supply |
6x |
|
141
|
Mon Jul 3 14:32:24 2023 |
Cao | Infrastructure | VAC | Cooling down vacuum chamber | [Cao]
After leaving the the chamber
to bake at 120 deg C from Thursday 3:41 pm.
Today I started to cool the chamber down |
|
|
142
|
Mon Jul 3 16:26:21 2023 |
Cao | Infrastructure | DAQ | Access and control Red Pitaya remotely and run it on local machine | [Cao]
To access and control the Red
Pitaya using Python locally on a machine
within the local network, one should follow |
|
|
97
|
Fri May 12 20:28:34 2023 |
Aiden, Cao | Physics | VAC | Vacuum chamber Helium leak test | [Aiden, Cao]
1. Helium leak test
2:00 pm: Uninstall regulator from nitrogen |
|
|
145
|
Wed Jul 5 15:46:47 2023 |
Aiden, Cao | Infrastructure | VAC | Vacuum Chamber Baking Update |
Cao and Aiden put the RGA back on to
the chamber and measured the outgassing rate
after the chamber has cooled down from its |
|
|
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. |
|
|
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. |
|
|
25
|
Fri Feb 10 15:15:30 2023 |
Aiden | Update | General | Bagging First Batch | Aiden Bagged and Tagged the first batch of
stainless steel parts shown on the google
spread sheet.
1. Removed two parts from |
|
|
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, |
|
|
30
|
Fri Feb 17 19:12:39 2023 |
Aiden | Update | General | Clean and Bake batch 3 | Bagged and Tagged batch 2 parts by placing
no more than two parts per ESD bag then taped
them with kapton tape and tagged them with |
|
|
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 |
|
|
96
|
Wed May 10 10:49:34 2023 |
Aiden | Update | General | RGA Software | [Aiden, Cao]
Went over how to use the RGA
software, how to change the graph units,
scaling and mass detection. Also went over |
|
|
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. |
|
|
115
|
Tue Jun 6 16:04:46 2023 |
Aiden | Update | General | Water | Aiden went and refilled the de-ionized water
to continue clean and bake batches. |
|
|
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 |
|
|
126
|
Fri Jun 16 17:40:28 2023 |
Aiden | Update | Clean & Bake | Clean and Bake Batch 14 | Cleaned and Baked the new and 2.75" copper
gaskets for the vacuum system. Cleaned them
with liquinox in the ultra sonic washer for |
|
|
146
|
Wed Jul 5 16:02:12 2023 |
Aiden | Update | Clean & Bake | Clean and Bake batch 14 Bagging | Bagged and Tagged the 2.75" copper gaskets
from Batch 14 and placed them into the clean
room on the work bench. |
|
|
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 |
|
|
150
|
Fri Jul 7 15:11:39 2023 |
Aiden | Update | VAC | VAC System Heating Update |
The temperature of the flange connecting
to the turbo pump after reaching equilibrium
is 74 degC. This means that it is safe to |
|
|
152
|
Mon Jul 10 13:23:23 2023 |
Aiden | Update | VAC | VAC System Heating Update |
Checked on the system today.
The
flange on the turbo pump has reached an equilibrium
temperature of 87 degC when set at 150 degC. |
|
|
153
|
Thu Jul 13 14:56:43 2023 |
Aiden | Update | VAC | VAC System Heating Update |
Checked on the vacuum system today to
change the PID controls back to their default
values in order to try and get the temperature |
|
|
156
|
Fri Jul 14 14:37:25 2023 |
Aiden | Update | VAC | VAC System Heating Update |
Checked on the vacuum system and it looks
like it will either need to be increased
in temperature or baked for a longer time. |
|
|
160
|
Mon Jul 17 13:50:41 2023 |
Aiden | Update | VAC | VAC System Heating Update |
Started to cool down the chamber today.
Final temperature readings of the chamber
were 146C and 91C for the body and cross |
|
|
161
|
Mon Jul 17 14:01:41 2023 |
Aiden | Update | VAC | VAC System Heating Update |
The insulation on the lid of the vacuum
chamber has some discoloration and it may
be wise to place a sensor closer to this |
|
|
168
|
Thu Jul 20 18:03:19 2023 |
Aiden | Update | VAC | Vacuum Chamber Baking Update |
Took another set of RGA data after the
second bake has cooled down to 27 degC.
Just
by visual comparison to the other graphs, |
|
|
179
|
Fri Jul 28 13:46:17 2023 |
Aiden | Update | VAC | Vacuum Chamber Baking Update |
Took some more data to look at the HC
count. Initial data was from leaving the
Argon leak closed and then left it open for |
|
|
184
|
Tue Aug 1 12:10:03 2023 |
Aiden | Update | VAC | Vacuum Chamber Baking Update |
Dr. Richardson and I took off the insulation
on the lid again to add more insulation in-between
the heater tape folds in addition to what |
|
|
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 |
|