| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1931
|
Wed Jun 10 13:48:22 2015 |
Kate | Computing | Computing | WS1 log in problem | Zach gave me the controls password for
ws1 and I just tried logging in. The following
error message (see attachment) shows up. |
|
|
1933
|
Fri Jun 12 12:23:14 2015 |
Kate | Computing | Computing | WS1 log in problem | Nicolas took a look at this with me. We
turned the computer off and attempted to
reboot it, but it did not boot. Looking in |
|
|
2171
|
Sun Aug 27 21:55:14 2017 |
awade | Computing | Computing | Mapping the ATF/PSL/TCS lab | I ran nmap over the local ATF network to
find out what was connected and to grab MAC
addresses. |
|
|
2172
|
Mon Aug 28 17:11:47 2017 |
awade | Computing | Computing | Mapping the ATF/PSL/TCS lab | So the mystery 3com router on a floating
DHCP address was actually the one in the
TCS lab. I've given it an IP now |
|
|
2173
|
Tue Aug 29 20:59:11 2017 |
awade, Jon | Lab Infrastructure | Computing | Setting up a gateway PC | Jon has been working on getting a gateway
PC set up again so that we can ssh into the
lab from outside the ATF network. |
|
|
2175
|
Wed Sep 6 11:50:12 2017 |
Jon | Lab Infrastructure | Computing | Gateway PC set up | Jon's Edits to Andrew's
Setup of the Linksys Router
Andrew is right that the Linksys |
|
|
2176
|
Wed Sep 6 11:51:40 2017 |
Jon | Lab Infrastructure | Computing | Gateway PC set up | Jon's Edits to Andrew's
Setup of the Linksys Router
Andrew is right that the Linksys |
|
|
2181
|
Thu Sep 21 12:25:05 2017 |
awade | Computing | Computing | Rebuild ws1 in ATF | I wanted another Debian computer around
the lab to install LIGO tools on. ws1
was running Ubuntu 14 which is ok but less |
|
|
2182
|
Wed Sep 27 12:41:57 2017 |
Jon Richardson | Lab Infrastructure | Computing | TCS Subnet Back Up | The TCS lab did not get Internet back after
the the ATF lab pipe work was done. I traced
the problem back to the fiber connecting |
|
|
2183
|
Sun Nov 5 15:12:06 2017 |
rana | Summary | Computing | diaggui on Mac laptops | Its
now possible to install DTT (aka diaggui) |
|
|
2200
|
Sun May 27 16:10:27 2018 |
awade | Computing | Computing | Accessing 3com switch from screen on mac | Somehow I lost access to the 3com switch in
the PSL lab. The default config IP
was lost and from there we have been unable |
|
|
2201
|
Tue May 29 16:12:48 2018 |
awade | Lab Infrastructure | Computing | Upgraded top level QIL/PSL/TCS lab's router | The old LinkSys router has been hanging
every 48 hours or so. Also it is fairly slow.
I've purchased a tp-link |
|
|
2317
|
Thu Mar 28 18:16:59 2019 |
Jon | Update | Computing | Cymac assembly started | This afternoon Chris and I installed the
ADC and DAC cards in fb4.
We connected them to the |
|
|
2319
|
Mon Apr 1 11:03:24 2019 |
Jon | Update | Computing | Cymac assembly started | I know there is some CTN slow channel data on
the disk. Is it at all possible to boot so
that can be recovered? |
|
|
2705
|
Wed Dec 31 15:59:59 1969 |
Stephen | DailyProgress | Cryo vacuum chamber | Radiative Cooling of Si Mass, with worse inner shield inner surface emissivity - retry run was successful | This post will host plots and trends from
this radiative cooling run (QIL/2704).
Preliminarily, it looks like the |
|
|
2261
|
Wed Nov 14 16:49:47 2018 |
Rahul | Update | Cryo vacuum chamber | assembly | The top (seen with several threaded holes
along with 16 through holes) and bottom (only
2 threaded holes for lifting and 16 through |
|
|
2267
|
Tue Dec 4 15:56:29 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | O-ring which fits | The viton O-ring shipped by Nor-Cal fits
the chamber groove, given below is the correct
specification for future reference. I am |
|
|
2269
|
Wed Dec 5 16:18:50 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | bottom plate | Aaron and Rahul - The bottom plate of the
chamber was upside down (Gabriele and I did
it as we were trying out few things during |
|
|
2270
|
Wed Dec 5 16:49:50 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | Schematic for the flanges | The vacuum chamber has 12 flanges (four
4-5/8 and eight 2-3/4 flange size). For the
pump down test I will attach the pumping |
|
|
2271
|
Thu Dec 6 12:44:18 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | Fabricated parts arrived | Cold plate and the radiation shields have
arrived. I will perform a mock assembly of
these fabricated parts to check if they are |
|
|
2272
|
Thu Dec 6 16:49:40 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | Chamber and bottom plate assembly | The bottom plate and the vacuum chamber
(collar) has been assembled – thanks
to Aaron for helping me out. The O-ring holds |
|
|
2276
|
Fri Dec 7 16:08:45 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | Radiation shields | The cold plate and radiations shields (100K,
50K and bottom 100K shields) are at 40m for
cleaning and baking. The outer shields will |
|
|
2278
|
Tue Dec 11 16:26:07 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | cleaning of shields and cold plate | The radiation shields and the cold plate
have been cleaned twice at the bath at 40m.
They are currently undergoing baking for |
|
|
2279
|
Wed Dec 12 14:40:17 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | cleaning of shields and cold plate | The radiation shields and the cold plate
have been cleaned (class B) and baked and
can be used in vacuum. I brought them back |
|
|
2285
|
Fri Dec 21 15:23:02 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | Chamber closed for 1st pump down test | The cryo vacuum chamber
was closed yesterday (Thursday) for the 1st
pump down test. The figure below shows various |
|
|
2288
|
Fri Dec 21 16:14:42 2018 |
Rahul | DailyProgress | Cryo vacuum chamber | Pump down results | I switched on the pumping
station this morning at 10 am and roughly
after 6 hours of pumping the pressure in |
|
|
2364
|
Tue Jun 18 00:43:17 2019 |
Duo | DailyProgress | Cryo vacuum chamber | Chamber Opening | With the help from Chub, we opened the
vacuum chamber. The procedures are not complicated.
Here are some notes, both about the opening |
|
|
2428
|
Wed Oct 9 17:40:57 2019 |
Raymond, Chris, Duo | DailyProgress | Cryo vacuum chamber | Closing the vacuum chamber | We closed the chamber without installing
the radiation shields or cold plate in order
to test the vacuum pressure of the empty |
|
|
2429
|
Thu Oct 10 17:28:33 2019 |
Raymond, Chris | DailyProgress | Cryo vacuum chamber | Radiation shields unpacked | Today we unpacked the radiation shields
and started to puzzle out how to assemble
them. Attached are photos of the parts as |
6x |
|
2430
|
Fri Oct 11 17:12:26 2019 |
Raymond, Chris | DailyProgress | Cryo vacuum chamber | Closing the vacuum chamber | We installed the oil filter/trap on the
roughing pump and began pulling a vacuum.
This was delayed due to the turbo pump flashing |
|
|
2431
|
Fri Oct 11 17:33:47 2019 |
rana | DailyProgress | Cryo vacuum chamber | Closing the vacuum chamber | we'll suffer if we use a oil based
pump long term - please find and order a
dry pump to back this turbo. Not only is |
|
|
2434
|
Fri Oct 18 14:44:22 2019 |
Chris | Lab Infrastructure | Cryo vacuum chamber | 208V electrical service was installed in the QIL | A historical note - electricians from Facilities
visited the lab several weeks ago and installed
new electrical service. To do this with a |
|
|
2435
|
Mon Oct 21 17:07:17 2019 |
Chris | Lab Infrastructure | Cryo vacuum chamber | Cryo chamber vacuum pressure logging | Ever since the initial pumpdown the pressure
in the new cryo chamber has been stuck at
~6e-6 torr, so there's probably a small |
|
|
2440
|
Tue Nov 5 20:06:36 2019 |
Raymond | Update | Cryo vacuum chamber | Cooler to tank connection | Attached is a drawing of the first phase
(minimal vibration isolation) cryocooler
attachment, where the main tank connects |
|
|
2441
|
Wed Nov 6 17:05:33 2019 |
Raymond | DailyProgress | Cryo vacuum chamber | Conflat flange tightening | Tightened all of the vacuum ports on the
chamber so that the flange interfaces are all
now metal-to-metal, ie full copper gasket |
|
|
2442
|
Mon Nov 11 22:19:09 2019 |
Raymond | DailyProgress | Cryo vacuum chamber | Changes to preserve long strap for internal chamber use | I've attached a photo of some changes
to the cryocooler-tank connection design.
We can save money and space by removing the |
|
|
2444
|
Tue Nov 12 17:44:39 2019 |
Raymond | DailyProgress | Cryo vacuum chamber | Tank Update | Last week I moved the upper portion of
the crane to the new, bolted crane support
stand. Chub removed the wheeled lower section |
|
|
2455
|
Thu Nov 21 21:58:27 2019 |
Raymond | DailyProgress | Cryo vacuum chamber | Tank Update | Update of our available electrical feedthroughs:
2 x 19
pin round with corresponding |
|
|
2476
|
Wed Dec 11 15:53:48 2019 |
Aidan, Chris, Raymond | Howto | Cryo vacuum chamber | Procedure to record photodiode output vs temperature | [Aidan, Chris, Ray]
Add LN2 to cryo-chamber
Turn
on heater to 25W
Wait for LN2 |
|
|
2477
|
Wed Dec 11 19:50:25 2019 |
rana | Howto | Cryo vacuum chamber | Procedure to record photodiode output vs temperature | don't we also want to record the dark
noise spectrum as a function of T and V_Bias
? I would guess that the dark noise doesn't |
|
|
2497
|
Fri Jul 17 15:54:42 2020 |
Stephen | Lab Infrastructure | Cryo vacuum chamber | |
Torque driver set for QIL setup
bolted joints, with range 15 in*oz - 50 in*lb, |
|
|
2498
|
Fri Jul 24 04:46:51 2020 |
Stephen | Lab Infrastructure | Cryo vacuum chamber | | Copper parts picked up July 23rd and brought
to QIL, now only waiting on PO# S477874
and the pirani gauge from Koji's bulk JPL |
|
|
2501
|
Fri Jul 24 07:50:00 2020 |
Raymond | Update | Cryo vacuum chamber | Prototype shield panels | Picked up the prototype shield panels from
Hamilton Metalcraft 7/22 and brought them
to QIL. All of the parts are wrapped by part |
|
|
2502
|
Tue Aug 4 17:08:00 2020 |
Raymond | Update | Cryo vacuum chamber | 19 pin MIL feedthrough and CTC100 wiring | Used the 19-pin MIL feedthrough to
run 4 platinum RTD's and a 25 Ω
100 W resistive heater to the cold head. |
|
|
2503
|
Fri Aug 7 11:50:06 2020 |
Raymond | Update | Cryo vacuum chamber | Tank pumpdown | The diaphragm pump was turned on earlier
this week after finally closing up this external
adapter tank. Out of an overabundance of |
|
|
2504
|
Fri Aug 14 11:17:04 2020 |
Raymond | Update | Cryo vacuum chamber | Cooler now operational | Cryopump is up and running. Initial attempts
to run the cooler were stymied by an open
circuit in the cold head to compressor connection |
|
|
2505
|
Wed Sep 2 08:13:18 2020 |
Stephen | DailyProgress | Cryo vacuum chamber | Assembly of QIL Setup and other updates from 2020 Sep 01 | 2020 Sep 01, StephenA with remote assistance
from RaymondR
Highlights |
|
|
2508
|
Fri Sep 25 14:45:04 2020 |
Stephen | DailyProgress | Cryo vacuum chamber | Vibration Measurement Equipment and Shield Construction | Came into lab today, with two main goals:
1) Bring Downs equipment for vibration
measurements of cryo cooler during next operation |
|
|
2530
|
Fri Jan 29 10:14:16 2021 |
Stephen | DailyProgress | Cryo vacuum chamber | Restarting Cryo vacuum chamber effort | StephenA, RaymondR remotely assisting (off
payroll haha)
It seems that we won't likely |
|
|
2531
|
Fri Feb 5 08:50:02 2021 |
Stephen | DailyProgress | Cryo vacuum chamber | Successful cooldown, cold flange without shields | [updated with reference to data set, cleaner
plot, images of chamber configuration]
StephenA, 2021.02.05 |
7x |