| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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 |
|
|
338
|
Fri Feb 23 18:03:27 2024 |
Tyler | Update | FLIR | Optical Test Setup in Cleanroom | [Tyler, Xuesi]
The FLIR and test mass
stand-in have been transferred into the cleanroom.
A software test will be run as soon as we |
|
|
337
|
Fri Feb 23 15:01:48 2024 |
Shane | Update | CDS | Latest draft of MEDM screen for FROSTI readouts | Here's the latest draft of the MEDM screen
for the FrOSTI temp and power readouts. Also,
debugged the text readout boxes so they're |
|
|
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, |
|
|
334
|
Wed Feb 21 23:15:07 2024 |
Michael | Update | Interferometer Simulations | Long Shoelaces 1 Layout Created in Gtrace and Fixed Ghosting in Beamsplitter | I have created the long shoelaces 1 layout
for cosmic explorer using gtrace, a slight
modification from the shoelaces 1 layout |
|
|
333
|
Wed Feb 21 11:58:30 2024 |
Shane | Update | Cleanroom | cleanroom cleaning and particle count |
[Luke, Shane,
Tyler]
cleaning cleanroom and
particle count |
|
|
332
|
Tue Feb 20 18:08:24 2024 |
Aiden | Update | General | Degassing the RGA | I took an RGA measurement before and after
degassing the RGA. Both data was taken with
the Argon open. The pressure before taking |
|
|
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. |
|
|
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 |
|
|
329
|
Mon Feb 19 14:40:21 2024 |
Shane | Update | CDS | MEDM screen for FROSTI temp readouts | Here's the latest draft of the MEDM screen
for the FROSTI heating elements' temperature
readouts. Note that the MEDM screen isn't |
|
|
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 |
|
|
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 |
|
|
326
|
Tue Feb 13 13:02:41 2024 |
Pooyan | Update | Interferometer Simulations | Cacity sacn of Fabry-Perot | Created a simple model of Fabry-Perot cavity
in SIS, and did a cavity scan. Total power
in the cavity, 00 mode, and HOMs is measured. |
|
|
325
|
Tue Feb 13 12:34:04 2024 |
Aiden | Update | VAC | VAC Heating System Update | Here is an overlay with for all the heating
steps done with the heater elements. |
|
|
324
|
Tue Feb 13 12:26:23 2024 |
Tyler | Update | Interferometer Simulations | BS Code Update | I reproduced Cao's CE beamsplitter code
(see below for example plots). I received
the current info on the beamsplitter parameters |
|
|
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.
|
|
|
322
|
Tue Feb 13 04:05:32 2024 |
Michael | Update | Interferometer Simulations | Shoelaces 1 Layout Simulated in GTrace | I've worked on and have completed a first
simulation of Cosmic Explorer's Shoelaces
1 layout. This is based off of Pooyan's original |
|
|
321
|
Tue Feb 13 01:26:30 2024 |
Peter | Update | Interferometer Simulations | CARM Power Simulations | Cao's simulations of the circulating power
and gouy phase through a single arm cavity
of the interferometer have been reproduced. |
|
|
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.
|
|
|
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. |
|
|
318
|
Wed Feb 7 12:43:22 2024 |
shane | Update | Cleanroom | cleanroom particle counts (full 5 zone measurement) | Here's today's full 5 zone measurement of
the cleanroom. Everything is back under the
requirement. |
|
|
317
|
Tue Feb 6 22:40:25 2024 |
Michael | Update | Scripts/Programs | Long Crab 1 Design Created In Gtrace | Worked on and completed the python code for
the simulation of the Long Crab 1 layout
for Cosmic Explorer basing off of Pooyan's |
|
|
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 |
|
|
315
|
Fri Feb 2 19:18:24 2024 |
shane | Update | Cleanroom | cleanroom cleaning and particle count |
[Aiden, Shane,
Luis, Luke]
cleaning cleanroom
and particle count |
|
|
314
|
Fri Feb 2 19:08:20 2024 |
Aiden | Update | VAC | 1st Hot Element RGA Scan | Here are the measurements for the RGA scan
of the elements while on at around 160C.
The pressure of the chamber during the test |
|
|
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. |
|
|
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: |
|
|
311
|
Tue Jan 30 11:36:19 2024 |
Tyler | Update | Electronics | RTD Chassis |
|
|
|
310
|
Tue Jan 23 12:17:41 2024 |
Tyler | Update | Electronics | RTD Chassis |
After updating the wiring in the RTD
Chassis, a signal is now seen at each ADC
input. However, there seems to be a discrepancy |
|
|
309
|
Thu Jan 18 18:06:49 2024 |
shane | Update | Cleanroom | cleanroom 5 zone particle count measurement | Here's today's full five zone measurement
of the cleanroom |
|
|
308
|
Thu Jan 18 15:13:37 2024 |
Aiden | Update | VAC | VAC Heating System Update | [Aiden]
Took more data today and the
chamber and elements are showing an even
lower HC level than we have gotten before. |
|
|
307
|
Wed Jan 17 15:47:49 2024 |
Aiden | Update | General | Resistors for Heater Elements | Power Res (Ohm) RTD Res (Ohm)
Heater
1= 73.6; 81.8
Heater 2= 70.4; 82.1
Heater
3= 71; 84.5
Heater 4= 71.5; 80
Heater |
|
|
306
|
Tue Jan 16 16:11:41 2024 |
Aiden | Update | VAC | | [Aiden,Luis]
Below is the data for the
most recent bake. I believe the chamber is
cleaner than it is actually showing as the |
|
|
305
|
Tue Jan 16 12:20:21 2024 |
Tyler | Configuration | Electronics | RTD Readout Chassis Update 2 |
I performed another continuity test on
the RTD chassis wiring, and everything seems
to be set up correctly. The chassis should |
|
|
304
|
Tue Jan 16 10:01:21 2024 |
Peter | Update | VLC Update | VLC Faraday Isolator and Mode Matching | Attached is a PDF of my weekly updates. |
|
|
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 |
|
|
302
|
Wed Jan 10 15:27:18 2024 |
Shane | Update | Cleanroom | cleanroom cleaning and particle count |
[Aiden, Shane]
cleaning
cleanroom and particle count
2:03 pm: changed sticky |
|
|
301
|
Tue Jan 9 16:35:09 2024 |
Aiden | Update | VAC | VAC System Leak and Heating | [Luis, Luke, Aiden]
Leak tested each
flange and weld and only found two flanges
to have noticeable leaks with the electron |
|
|
300
|
Tue Jan 9 12:08:59 2024 |
Tyler | Configuration | Electronics | RTD Readout Chassis Update |
Below is the current state of the RTD
readout chassis wiring. Initial continuity
tests seem good, will run through one more |
|
|
299
|
Mon Jan 8 20:24:53 2024 |
Aiden | Update | General | | [Jon, Aiden]
Installed the heater elements
into their fixture and prepped the cables
by twisting the wires into pairs. We also |
|
|
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 |
|
|
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 |
|
|
296
|
Tue Dec 19 15:45:05 2023 |
Aiden | Update | VAC | Vacuum Chamber Baking Update | Took RGA data for the macor parts inside of
the chamber. With the Ar open the HC levels
read 30 torrl/s which is around where it |
|
|
295
|
Mon Dec 18 15:51:49 2023 |
Aiden | Update | VAC | VAC System Heating Update | After letting the chamber cool down I put
the electronics back on and turned the RGA
element back on. No data has been taken yet |
|
|
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 |
|
|
293
|
Sun Dec 17 19:43:18 2023 |
Aiden | Update | VAC | Vac Heating Update | [Aiden]
I measured the temperature of
the flanges where some of the electronics
will go and I found that the RGA flange was |
|
|
292
|
Fri Dec 15 14:03:02 2023 |
Aiden | HowTo | VAC | Vacuum Chamber Opening | [Aiden]
1. Turn off the RGA filament
and disconnect it.
2. Record the pressure
and then close the angle valve and gate valve |
|
|
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 |
|
|
290
|
Mon Dec 11 12:58:57 2023 |
Shane, Luis | Update | CDS | DAC-ADC loopback test debugging | [Luis, Shane]
Working on debugging last
week's weird results for the ADC-DAC loopback
test for channels 14 and 15. With DAC output |
|
|
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 |
|