| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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 |
|
|
13
|
Wed Dec 14 17:35:41 2022 |
Jon | Infrastructure | Computers | Windows Laptop | I set up the new Windows 10 laptop (pictured
below), which arrived yesterday. This laptop
is intended to be used for running lightweight |
|
|
14
|
Wed Dec 14 18:34:33 2022 |
Jon | Configuration | Electronics | Adapter for 532 nm laser power supply | I installed an EU-to-US plug adapter for the
532nm laser's 9V power supply. I then re-measured
the laser's power with the correct supply |
|
|
24
|
Tue Feb 7 17:44:17 2023 |
Jon | Infrastructure | Computers | Workstation 1 (ws1) set up | The Linux workstation (ws1) that used to sit
on the old workbench has been mounted on
the new electronics bench and is now ready |
|
|
39
|
Wed Mar 1 21:27:20 2023 |
Jon | Infrastructure | Cleanroom | Over-table shelf height raised | Jon, Cao
Today we raised the height of the
shelf overhanging the cleanroom laser table |
|
|
40
|
Wed Mar 1 21:50:46 2023 |
Jon | Infrastructure | Computers | Workstation 2 (ws2) mounted on cleanroom cart | The Linux workstation (ws2) that used to
sit on the blue workbench (now inside the
cleanroom) has been mounted on a mobile cart, |
|
|
44
|
Mon Mar 6 15:32:58 2023 |
Jon | Infrastructure | General | Cabinet installation completed | Jon, Cao, Peter
This morning Facilities delivered
and installed two new cabinets with sliding |
|
|
53
|
Wed Mar 22 12:16:20 2023 |
Jon | Infrastructure | Cleanroom | Experimenting with HEPA fan speeds | Jon, Cao
In effort to try to reduce the noise
level inside the cleanroom, we have dialed |
|
|
56
|
Fri Mar 24 07:14:38 2023 |
Jon | Infrastructure | Computers | Workstation 2 (ws2) mounted on cleanroom cart | The ws2 cart has been thoroughly wiped down
with IPA wipes and moved inside the cleanroom.
I have reconnected it to power and Ethernet |
|
|
63
|
Tue Apr 4 16:43:53 2023 |
Jon | Update | VLC Electronics | Additional Thorlabs PDA10A2 | I ordered a second PDA10A2 and mounting post
+ spacer (which puts the aperture at the
VLC's standard 3" beam height). These arrived |
|
|
64
|
Tue Apr 4 16:52:08 2023 |
Jon | Update | Cleanroom | Particle counter docking station | Due to the problems we have encountered trying
to serially communicate directly with the
Met One DR-528 particle counter, I went ahead |
|
|
74
|
Fri Apr 21 00:06:43 2023 |
Jon | Update | VAC | Vacuum prep and installation - parts have arrived | The two parts needed to complete the vacuum
assembly (ELOG
70) have arrived. |
|
|
78
|
Tue Apr 25 11:56:37 2023 |
Jon | Update | VLC Electronics | Red Pataya has arrived | The Red Pataya 125-14 starter kit that we
ordered for locking the 532 nm cavity has
arrived. I left it laying on the optical |
|
|
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. |
|
|
94
|
Tue May 9 15:49:20 2023 |
Jon | Infrastructure | VAC | Permanent cable routing | Today I brought in a fresh supply of zip
ties (we now have 1500 in the tool chest)
and used them to permanentize the cable routing |
|
|
95
|
Tue May 9 20:55:12 2023 |
Jon | Infrastructure | VAC | Calibrated Ar leak rate | For future reference, the calibrated Argon
source has a leak rate of 7.55E-8
atm cc/s, or equivalently |
|
|
136
|
Tue Jun 27 21:47:56 2023 |
Jon | Infrastructure | VAC | Vacuum chamber bake attempt 1 | The electrical overload problem encountered
in ELOG 130
has been resolved. The two heater controllers, |
|
|
154
|
Thu Jul 13 15:31:21 2023 |
Jon | Update | General | Ant traps placed around lab | In response to reports that ants have been
observed in the lab, I placed five ant bait
traps around the room today. Each is sitting |
|
|
155
|
Thu Jul 13 16:59:03 2023 |
Jon | Update | General | Ant traps placed around lab | Update: After seeing the
strong response to the first set, I redistributed
them to the hottest spots and added one more |
|
|
170
|
Mon Jul 24 14:55:53 2023 |
Jon | Update | VAC | Removed extension power cable | I removed the extension cable that was powering
the leftmost heater controller, since there
is no bake currently happening. It is currently |
|
|
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: |
|
|
202
|
Thu Aug 10 15:10:12 2023 |
Jon | Update | VAC | VAC System Heating Update | I shut down the turbo pump since this is evidently
a large leak. We CANNOT turn on the RGA for
leak checking with the pressure above 1E-5 |
|
|
238
|
Wed Oct 11 20:47:11 2023 |
Jon | Update | VAC | Vacuum upgrade begins | [Jon, Tyler, Aiden, Peter]
Upgrade of the UHV system to a larger
turbo pump began today. After obtaining a |
|
|
248
|
Mon Oct 30 08:42:22 2023 |
Jon | Update | VAC | Vacuum Leak Test | By 5:30 pm Friday, the pressure had reached
8.6e-8 torr and was continuing to fall. So
it seems we are OK to proceed with permanentizing |
|
|
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: |
|
|
261
|
Fri Nov 10 08:32:34 2023 |
Jon | Update | VAC | RGA experiments | I ran a 3-minute
degas cycle of the RGA filament for the first
time yesterday (in this process, the filament |
|
|
266
|
Tue Nov 14 17:21:40 2023 |
Jon | Update | VAC | RGA best practices | As a follow up ELOG 261,
I have received advice from one of the vacuum
experts at LIGO Hanford on best practices |
|
|
277
|
Thu Nov 23 12:34:44 2023 |
Jon | Update | CDS | DB25 signal connections for FROSTI heaters | Update: I was able to put the
FROSTI power controller on the lab network.
It is connected to the switch in the top |
|
|
289
|
Sat Dec 9 12:34:12 2023 |
Jon | Update | General | Electronics workshop migrated to 1129 | [Jon, Tyler, Shane, Luis]
On Wednesday we completed the migration
of the electronics workshop from 1119 to |
|
|
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 |
|
|
294
|
Sun Dec 17 21:04:15 2023 |
Jon | Infrastructure | Clean & Bake | Clean and bake lab migrated to 1129 | [Jon, Tyler, Aiden, Luke]
On Friday we completed assembly of
the new stainless steel-topped benches in |
|
|
297
|
Wed Dec 20 10:33:34 2023 |
Jon | Infrastructure | Clean & Bake | Clean and bake lab migrated to 1129 | Update: I
have completed permanent routing of the electrical
cables. I also ran the ultrasonic washer's |
|
|
298
|
Fri Dec 29 16:02:27 2023 |
Jon | Configuration | Electronics | RTD Readout Chassis | The custom front and rear panels for the
RTD readout chassis arrived last Friday.
I installed them in the chassis frame to |
|
|
303
|
Mon Jan 15 22:29:34 2024 |
Jon | Infrastructure | General | Cabinet installation & lab clean-up completed | [Jon, Tyler, Aiden, Shane, Pooyan, Michael,
Cynthia, Luke]
On Wednesday, we completed long list |
|
|
313
|
Fri Feb 2 16:56:56 2024 |
Jon | Update | CDS | RTS model implemented for FROSTI RTD readouts | Summary
Today I finished implementing
an RTS model to read out the integrated FROSTI
RTDs (temperature sensors) via the CyMAC. |
|
|
327
|
Fri Feb 16 18:37:28 2024 |
Jon | Update | VAC | Bake ended 6:23 pm | I ended the bake of the UHV system (that
began on Monday) at 6:23 pm today by switching
OFF both PID controllers. The heaters elements |
|
|
330
|
Tue Feb 20 08:01:30 2024 |
Jon | Infrastructure | General | Power and network equipment installed in 1129 rack | [Jon, Tyler, Pooyan, Luis, Luke, Peter]
On
Thursday we installed the power conditioning/distribution
equipment and networking equipment in the |
|
|
335
|
Thu Feb 22 21:48:16 2024 |
Jon | Update | VAC | Vacuum vent for RGA testing of reflector | [Jon, Tyler, Luke, Aiden]
Summary
Following
Wednesday's cleanroom cleaning [333],
we proceeded to vent the vacuum chamber, |
|
|
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 |
|
|
341
|
Mon Feb 26 21:23:27 2024 |
Jon | Update | TCS | FROSTI Assembly - Day 1 | [Jon, Tyler, Luis, Luke, Mohak, Cynthia, Michael,
Aiden]
FROSTI assembly began today. After
a final set of RGA scans were taken, the |
7x |
|
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 |
|
|
402
|
Thu Jul 11 21:01:37 2024 |
Jon | Infrastructure | General | Cable tray installed in 1129 | Today I installed a 10' cable tray in 1129,
for permanently routing Ethernet lines to
the workstations. It is securely bolted to |
|
|
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 |
|
|
418
|
Tue Jul 30 07:42:47 2024 |
Jon | Infrastructure | General | Cable tray installed in 1119 | Yesterday I installed another 5' cable tray
in 1119, for permanently routing Ethernet
lines to the L-bench. It is securely bolted |
|
|
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 |
|
|
359
|
Mon Apr 8 14:57:41 2024 |
Cynthia, Pooyan | Update | Interferometer Simulations | performed cavity scans for O4 O5, and coupled cavity | |
|
|
343
|
Tue Feb 27 09:06:29 2024 |
Cynthia | Update | Interferometer Simulations | cavity scan with higher order input laser | I performed a few cavity scan with the inputing
laser with a different mode (not pure 00).
For each laser I included a graph for just |
|
|
363
|
Mon Apr 22 15:06:33 2024 |
Cynthia | Update | Interferometer Simulations | cavity scan update | [Cynthia,Pooyan]
Completed some simulations
injecting 0-10th order modes. Some graphs
will be used for the poster after some further |
|
|
381
|
Mon Jun 24 14:28:51 2024 |
Cynthia | Update | Interferometer Simulations | SIS cavity with thermal effect | tried to run a cavity scan with thermal deformation
and ring heater for ITM04 ETM08 (aLIGO mirrors).
Not sure about the accuracy of the graph |
|