| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
101
|
Thu May 18 14:07:08 2023 |
Peter | Update | VLC Update | 532nm Intensity Measurement | I figured out a method in which to capture
power measurements including the initial
seconds in which the beam is first turned |
|
|
100
|
Wed May 17 12:18:08 2023 |
Pamella, Julian and Shane | Update | General | Cleaning room and particle count | [Pamella, Julian and Shane]
Particle
count:
10 am: Started particle count
Zone 3 :
|
|
|
99
|
Tue May 16 11:56:33 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | With the configuration the exact same as before,
I used the Jupyter notebook in the red pitaya's
development package to collect data from |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
93
|
Mon May 8 12:00:03 2023 |
Pamella, Shane, Julian | Update | General | Cleanroom particle counts and cleaning the cleanroom. | [Pamella,Julian, Shane]
Today we
cleaned the clean-room (floor, surfaces)
and particle count.
10:00 |
|
|
92
|
Thu May 4 14:01:10 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | I adjusted the rotational mount of the wave
plate to see if the power can be 100% coupled
into either S or P polarization. The images |
|
|
91
|
Wed May 3 19:03:47 2023 |
Julian,Pamella and Cao | Physics | VAC | Modify vacuum asssembly and install RGA | [Pamella, Julian, Cao]
Today we
started re-configuring the vacuum chamber
components.
Particle count |
|
|
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
|
|
|
89
|
Tue May 2 15:55:33 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | I changed the 1/2 wave plate from the lens
mount to the rotational optic mount. This
allowed me to rotate the 1/2 wave plate, |
|
|
88
|
Mon May 1 18:56:57 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | I've configured the two PDA's to the Red Pitaya.
I put a 50 ohm resistor connector to each
red pitaya input port. This was because the |
|
|
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
|
|
|
86
|
Fri Apr 28 19:39:19 2023 |
Cao | Summary | General | Clean and Bake Leybold TTR 91 Pirani Gauge |
|
|
|
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 |
|
|
84
|
Fri Apr 28 18:16:57 2023 |
Cao | Physics | VAC | Grounding vacuum system |
|
|
|
83
|
Fri Apr 28 11:21:01 2023 |
Peter | Update | VLC Update | Laser intensity/polarization drift measurements | The Digi-key cables have arrived, and I have
began implementing them in the intensity
drift measurements.
There was a slight |
|
|
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. |
|
|
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 |
|
|
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 |
|
|
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
|
|
|
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 |
|
|
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 |
|
|
76
|
Fri Apr 21 16:51:26 2023 |
Pamella | Update | General | Cleaning cables. | Cables for the vacuum system.
Today i wiped, bagged and tagged two cables
for the vacuum system. I used IPA wipes for |
|
|
75
|
Fri Apr 21 15:21:18 2023 |
Pamella | Update | FLIR | | FLIR project updates
01:50 pm: Starting test position 34 mm distance
to black wall.
Parameters : |
|
|
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. |
|
|
73
|
Wed Apr 19 17:39:50 2023 |
Pamella | Update | FLIR | FLIR project |
FLIR project updates- Initial tests
10:00: Starting test
in position 2 cm to the black wall.
|
|
|
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 |
|
|
71
|
Wed Apr 12 16:17:50 2023 |
shane | Update | General | Particle Counter moved | With the added height of the new docking station,
the particle counter no longer fits under
the Windows monitor in the electronics rack |
|
|
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 |
|
|
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 |
|
|
68
|
Tue Apr 11 17:56:15 2023 |
Pamella | Update | General | Lab cleaning | Today Pamella and Julian finished cleaning
of the cleanroom, starting with the HEPA
vacuuming, mopping and clearing all floor |
|
|
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 |
|
|
66
|
Fri Apr 7 09:48:09 2023 |
Pamella | Update | General | Clean the system parts | Pamella and Julian wiped and tag system parts
for the vacuum machine. We used isopropyl
and vectra wipes in the most import pieces: |
7x |
|
65
|
Thu Apr 6 10:20:43 2023 |
Peter | Update | VLC Update | Laser intensity/polarization drift measurements | More optical components were added to the
optical set up for laser intensity / polarization
drift measurements. Both lenses and both |
|
|
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 |
|
|
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 |
|
|
62
|
Tue Apr 4 09:53:37 2023 |
Peter | Update | VLC Update | Laser intensity/polarization drift measurements | The set up for the next round of beam characterization
measurements has begun. The beam is initially
passing through a half waveplate, is split |
|
|
61
|
Tue Apr 4 09:39:58 2023 |
Peter | Update | VLC Electronics | 532 M2 Measurements | Final M squared measurements were taken Wednesday,
3/29/23 by Peter and Ryan Hinosawa. 5 separate
sets of data were taken, and upon discussion, |
|
|
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 |
|
|
59
|
Fri Mar 31 14:23:13 2023 |
Pamella | Update | General | Clean and bake batch 11 | Today I bagged and tagged batch 11. I wiped
the some tools: Centering ring alum( 2 pieces),
reversible ratcheting, gasket removal (CF). |
|
|
58
|
Wed Mar 29 16:00:36 2023 |
Pamella | Update | Cameras | FLIR project |
Today Pamella and Tyler started work in
the updates for the FLIR project.
We trie
for the first time cover the mirrors with |
|
|
57
|
Fri Mar 24 13:36:17 2023 |
Pamella | Update | General | Clean and Bake batch 10 | Today I bagged and tagged batch 10.
I wiped
the RGA vacuum component for around 25 minutes
after that I bagged and tagged this part |
|
|
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 |
|
|
55
|
Thu Mar 23 18:40:08 2023 |
Julian | Update | General | Cleanroom Update | Today Pamella and I came in to Hepa vacuum
and mop the floor of the cleanroom for general
maintenance. |
|
|
54
|
Wed Mar 22 15:25:00 2023 |
Shane | Update | General | Clean room recertification particle counts | Attached are the five zone particle measurements
for the clean room now that the fan speeds
have been set to MEDIUM. 2 min sample time, |
|
|
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 |
|
|
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 |
|