| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
176
|
Thu Jul 27 14:46:55 2023 |
Shane, Jon | Update | Electronics | AA chassis DC on/off switch assembled | Made the first DC on/off switch assembly today
and installed in anti-aliasing chassis. Second
switch assembly to be completed later. |
|
|
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. |
|
|
235
|
Mon Oct 9 11:29:37 2023 |
Tyler | Update | Electronics | PSD/CSD Plot Updates | Continuing from Sophia's SURF Project this
summer: Plotting the Power-Spectral Densities
(PSDs) and Cross-Spectral Densities of two |
|
|
255
|
Mon Nov 6 11:29:24 2023 |
Tyler | Update | Electronics | Preliminary RTD Calculations, RP Software Update |
Preliminary RTD calculations are shown
below, given an input of 10 V and desiring
a few mA of current. It looks like R_ref |
|
|
271
|
Mon Nov 20 10:10:50 2023 |
Tyler | Configuration | Electronics | RTD Logic/Schematic Diagrams |
Below are a basic diagram of what the
RTD measurement circuit logically looks like
and an example schematic of the actual wiring. |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
311
|
Tue Jan 30 11:36:19 2024 |
Tyler | Update | Electronics | RTD Chassis |
|
|
|
364
|
Thu May 2 22:43:36 2024 |
Tyler | Update | Electronics | RTD Readout Chassis Redesign | [Tyler, Jon]
Today the FROSTI RTD
readout chassis underwent a redesign:
Instead of the original ratiometric |
|
|
466
|
Tue Oct 29 16:37:35 2024 |
Tyler | Update | Electronics | Red Pitaya OS Update | The Red Pitaya ecosystem has been upgraded
to OS 2.00-35, with a key feature
being greater freedom in adjusting the sampling |
|
|
470
|
Wed Nov 13 14:03:32 2024 |
Tyler | Update | Electronics | RIN Update | [Tyler]
We've added two low-pass filters
in hopes of reducing any potential aliasing
that may be introducing additional noise |
|
|
477
|
Wed Nov 20 12:59:37 2024 |
Tyler | Update | Electronics | RIN Update | I went ahead and compared the noise spectrum
of the ADC to those of the photodetectors
with the FROSTI on and off. As discussed |
|
|
479
|
Wed Nov 27 13:48:01 2024 |
Tyler | Update | Electronics | RIN Update | [Tyler]
I downgraded the Red Pitaya
back to OS 2.00-18 due to runtime errors
during measurement. Once I did this, the |
|
|
486
|
Wed Dec 11 13:39:30 2024 |
Tyler | Update | Electronics | RIN Update 12/11/2024 | [Tyler]
Attached below are updated
ASD plots for the FROSTI RIN measurements.
The parameters set for this are the following: |
|
|
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 |
|
|
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) |
|
|
595
|
Tue Jun 17 12:46:47 2025 |
Tyler | Update | Electronics | CyMAC ADC Noise | Below are results from power spectra measurements
of the CyMAC ADC, computed form 30 hours
of time series data, compared to the performance |
|
|
12
|
Mon Nov 28 18:10:23 2022 |
shane | Update | ELOG | Particle counts in the clean room | Particle count stats for the clean room Nov
28, 2022:
Took 10 sample runs in each of
5 regions in the clean room (5 runs per region |
|
|
15
|
Wed Jan 18 22:06:05 2023 |
Julian | Update | ELOG | Cleanroom Update | I wiped down all the inner walls of the cleanroom
using alcohol wipes, as per Cao's instruction. |
|
|
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. |
|
|
458
|
Tue Oct 15 15:27:38 2024 |
Xuesi Ma | Update | ELOG | Timing Chassis Update |
I conducted separate tests on the '5015'
and '3010a'. When powered individually, the
'5015' outputs a signal at 33.55 MHz with |
12x |
|
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 |
|
|
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 |
|
|
351
|
Thu Mar 21 16:56:42 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | [Jon,Tyler]
We noticed that the RTD
temperature readings given on the Cymac were
off, and traced the issue to miscalibration |
|
|
354
|
Mon Mar 25 10:55:33 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | Refitted RTD calibration, neglecting quadratic
term:
R_0
(ohm) Alpha (1/C) |
|
|
355
|
Tue Mar 26 13:51:56 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | Another re-fit, but this time the quadratic
coefficient (beta) is set to 1.003e-6:
R_0 (ohm) Alpha |
|
|
416
|
Mon Jul 29 13:39:16 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | [Tyler]
Using the data taken during
the FROSTI testing at Caltech, I attempted
to find a better calibration of the RTD sensors, |
|
|
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 |
|
|
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 |
|
|
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, |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
356
|
Wed Mar 27 00:03:57 2024 |
Pooyan | Update | Computers | Chimay relocation to Physics 1129 | [Jon, Pooyan]
Moved Chimay from
the server rack in Physics 1119 to a new
rack in Physics 1129. It is connected to |
|
|
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 |
|
|
382
|
Mon Jun 24 21:38:25 2024 |
Pooyan | Infrastructure | Computers | Computer server changes in 1119 and 1129 | [Jon, Pooyan, Tyler]
A few computer machine changes have |
|
|
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 |
|
|
407
|
Mon Jul 15 14:49:06 2024 |
Pooyan | Update | Computers | Synology NAS server setup | Installed a Synology NAS server (Synology
RackStation RS1221) in lab room 1129, with
host name “scribe” and ip “192.168.1.17”. |
|
|
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 |
|
|
437
|
Mon Sep 9 14:27:36 2024 |
Pooyan | Infrastructure | Computers | Chimay backup attempt | One ongoing work is to make all lab machines
automatically backed-up on Scribe on a daily
basis. The updates should be boatable and |
|
|
593
|
Wed Jun 11 16:33:45 2025 |
Pooyan | Update | Computers | Luke's ray tracing hosting |
Hosted Lukes model on Chimay. It's
available at https://richardsonlab.ucr.edu/real-time-frosti
The
sourcecode is at Github. |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
79
|
Wed Apr 26 18:05:41 2023 |
Pamella, Julian, Shane | Update | Cleanroom | cleanroom particle counts and cleaning log |
pre-cleaning particle counts:
zone 3
0.3
mu: 2494
0.5 mu: 748
|
|
|
110
|
Wed May 31 12:16:28 2023 |
Shane | Update | Cleanroom | cleanroom particle counts (full 5 zone measurement) | Attached is the full 5 zone particle measurement
for the cleanroom after this week's cleaning,
5/31/23. |
|
|
131
|
Thu Jun 22 13:58:00 2023 |
Pamella, Julian and Shane | Update | Cleanroom | Cleaning and Particle Count |
[Pamella,
Shane, and Julian]
cleaning cleanroom
and particle count
12:00 |
|