| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
4148
|
Thu Jan 13 03:00:01 2011 |
Jenne | Update | IOO | WFS shenanigans | My goal
this afternoon was to |
|
|
4149
|
Thu Jan 13 12:56:57 2011 |
rana | Update | IOO | WFS shenanigans | Actually, I just found out that there are
different flavors of 'YAG-444'.
There's a YAG-444AH and also a YAG-444-4AH. |
|
|
5042
|
Wed Jul 27 10:04:29 2011 |
Suresh | Update | IOO | WFS transfer function measurements | This is part of the WFS activity.
So far I have completed the following tasks:
1) I fixed the |
|
|
10431
|
Tue Aug 26 23:46:55 2014 |
ericq | Update | IMC | WFS tuneup | I decided to see what I could do
with the new WFS setup.
First, I adjusted the WFS digital |
|
|
10432
|
Wed Aug 27 09:12:47 2014 |
Koji | Update | IMC | WFS tuneup | I'm sure that the 1~3Hz motion comes from
the mirror motion, but not 100% sure what
is causing |
|
|
17168
|
Sat Oct 1 13:09:49 2022 |
Anchal | Update | IMC | WFS turned on | I turned on WFS on IMC at:
PDT: 2022-10-01 13:09:18.378404
PDT |
|
|
9389
|
Fri Nov 15 09:24:41 2013 |
Steve | Update | IOO | WFS with beam dumps | This is a proposal to move WFSs such way
that their reflected beam can be trapped.
Later ps: Nic will take care of the |
|
|
9390
|
Fri Nov 15 09:27:58 2013 |
Koji | Update | IOO | WFS with beam dumps | Unfortunately this does not work. These
WFSs are not the detectors which we can move
freely. |
|
|
16862
|
Wed May 18 09:02:52 2022 |
Anchal | Update | BHD | WFS1 PD centered | I centered WFS1 PD so that IMC WFS Servo
does not go out of range.
|
|
|
4883
|
Sat Jun 25 04:40:43 2011 |
Suresh | Update | ASC | WFS1 Transimpedance measurement | WFS1 Transimpedance
The
attached plots show the location of the ~29.5
MHz pole and the 59 MHz notch for each quadrant |
|
|
4995
|
Wed Jul 20 06:36:39 2011 |
Suresh | Update | IOO | WFS1 and 2 gains | Gains of individual quadrants in both
the WFS
As a simple check of the
gains on all the quadrants I hooked up the |
|
|
4860
|
Wed Jun 22 18:51:47 2011 |
Suresh | Update | IOO | WFS2 RF response | I have shifted the Jenne laser back to
the small table where we do RF PD characterisation
(RFPD table). I found several 25pin |
|
|
4895
|
Tue Jun 28 09:50:03 2011 |
Suresh | Update | IOO | WFS2 RF response | The WFS2 Transimpedance has been
measured to determine if it also suffers
from the same 200MHz oscillations seen in |
|
|
15670
|
Tue Nov 10 14:30:06 2020 |
gautam | Update | IOO | WFS2 broken | While proceeding with the interferometer
recovery, I noticed that there appeared to
be no light on WFS2. I confirmed on the AP |
|
|
15708
|
Fri Dec 4 15:58:22 2020 |
Koji | Update | IOO | WFS2 broken | I checked the backplane connection for
IMC WFS2 and found that the
cables for IMC WFS2 and the IMC demod were |
|
|
4819
|
Wed Jun 15 00:49:34 2011 |
Suresh | Update | IOO | WFS2 has been fixed. |
The WFS2 sensor head had a damaged
Quadrant PIN diode (YAG-444-4A). This |
|
|
4224
|
Fri Jan 28 18:19:21 2011 |
Jenne | Update | IOO | WFS2 has some kind of oil on it | Mystery solved!
I removed WFS2 from the AP table
(after placing markers so I can put it back |
|
|
4927
|
Fri Jul 1 07:01:23 2011 |
Suresh | Update | IOO | WFS2 resonances and installation | This was the WFS whose photodiode was repaced
as the old one was found to be damaged.
I retuned the resonances and the |
|
|
4928
|
Fri Jul 1 11:47:25 2011 |
rana | Update | IOO | WFS2 resonances and installation | What is implicit
in Suresh's entry is that we decided to run |
|
|
5761
|
Sat Oct 29 02:35:39 2011 |
Suresh | Update | IOO | WFS_MASTER screen and lockin screens fixed | I have fixed the WFS_MASTER screen and
several of the subscreens such as the MCASS
and MC_WFS_LKIN. |
|
|
13305
|
Mon Sep 11 09:47:53 2017 |
Steve | Update | General | WIMA caps refilled | Instock WIMA caps refilled to a minimum
50 pieces each. |
|
|
3592
|
Tue Sep 21 15:33:02 2010 |
steve | Metaphysics | Treasure | Wagonga alart | John Miller has arrived from Australia
with 3 bags of Wagonga Coffee. Trade
bargaining has started on |
|
|
11150
|
Fri Mar 20 12:42:01 2015 |
Jenne | Update | IOO | Waking up the IFO | I've done a few things to start waking
up the IFO after it's week of conference-vacation.
PMC trans was at 0.679, aligned |
|
|
11151
|
Fri Mar 20 13:29:33 2015 |
Koji | Update | IOO | Waking up the IFO | If the optics moved such amount, could
you check the PD alignment once the optics
are aligned? |
|
|
11152
|
Fri Mar 20 16:44:49 2015 |
ericq | Update | IOO | Waking up the IFO | X arm ASS is having some issues. ITMX
oplev was recentered with ITMX in a good
hand-aligned state. |
|
|
11153
|
Fri Mar 20 23:37:46 2015 |
Jenne | Update | SUS | Waking up the IFO | In addition to (and probably related to)
the XARM ASS not working today, the ITMX
has been jumping around kind of like ETMX |
|
|
10941
|
Mon Jan 26 21:10:04 2015 |
Jenne | Update | Modern Control | Waking up the OAF | I had a look at the OAF model today.
Somehow, the screens that we had
weren't matching up with the model. |
|
|
11014
|
Thu Feb 12 12:23:21 2015 |
manasa | Update | General | Waking up the PDFR measurement system | [EricG, Manasa]
We woke up the PDFR measurement
setup that has been sleeping since summer. |
|
|
11132
|
Wed Mar 11 15:35:38 2015 |
manasa | Update | General | Waking up the PDFR measurement system | I was around the 1Y1 rack today. Trials
were done to get the PDFR of AS55.
|
|
|
11209
|
Wed Apr 8 21:10:55 2015 |
manasa | Update | General | Waking up the PDFR measurement system | I was poking around with the PDFR hardware today.
I moved the Agilent which had its
screen projected on the monitor. I have put |
|
|
11493
|
Tue Aug 11 11:56:36 2015 |
Ignacio, Jessica | Update | PEM | Wasps obliterated maybe... | The wasp terminator came in today. He obliterated
the known wasp nest.
|
|
|
11512
|
Mon Aug 17 17:48:12 2015 |
Koji | Update | PEM | Wasps obliterated maybe... | We found the same wasp in the 40m. Megan
found it walking behind Steve desk! |
|
|
3473
|
Thu Aug 26 13:08:03 2010 |
josephb | Update | CDS | Watch dogs for Vertex optics turned off | We are in the process of doing a damping
test with the real time code and have turned
off the vertex optics watchdogs temporarily, |
|
|
3479
|
Fri Aug 27 14:03:43 2010 |
kiwamu | Update | CDS | Watch dogs for Vertex optics turned off | For
a futher damping test, I again turned off
the vertex optics watchdogs temporarily, |
|
|
14564
|
Tue Apr 23 19:31:45 2019 |
Jon | Update | SUS | Watchdog channels separated from autoBurt.req | For the new c1susaux, Gautam and I moved
the watchdog channels from autoBurt.req to
a new file named autoBurt_watchdogs.req. When |
|
|
5559
|
Tue Sep 27 20:02:19 2011 |
Koji | Update | SUS | Watchdog rearmed | I came to the control room and found the
PMC and IMC were unlocked. ==> Relocked
I found the watch dogs of the vertex |
|
|
5560
|
Wed Sep 28 00:06:21 2011 |
Jenne | Update | SUS | Watchdog rearmed |
|
|
|
15862
|
Thu Mar 4 11:59:25 2021 |
Paco, Anchal | Summary | LSC | Watchdog tripped, Optics damped back | Gautam came in and noted that the optics
damping watchdogs had been tripped by a >5
magnitude earthquake somewhere off the coast |
|
|
15863
|
Thu Mar 4 15:48:26 2021 |
Koji | Summary | PEM | Watchdog tripped, Optics damped back | EQs seen on Summary pages
https://nodus.ligo.caltech.edu:30889/detcharsummary/day/20210304/pem/seismic_blrms/ |
|
|
2532
|
Tue Jan 19 16:21:18 2010 |
Alberto | Update | ABSL | Watchdogs not working and then fixed | This afternoon the watchdogs stopped working:
they didn't trip when the suspension positions
crossed the threshold values. |
|
|
7576
|
Thu Oct 18 15:36:57 2012 |
Steve | Update | Cameras | Watec cameras & Tamron lenses | I purchased 3x 1/2"
ccd cameras and 3x F 50
mm lenses for the lab. |
|
|
7322
|
Thu Aug 30 20:20:52 2012 |
Jenne | Update | SUS | Watek camera placed on SE viewport of ITMX to look at PRM | [EricQ, Jenne]
We placed the Watek camera on the
SE viewport of the ITMX chamber, and focused |
|
|
16942
|
Thu Jun 23 15:05:01 2022 |
Water Monitor | Update | Upgrade | Water Bottle Refill | 22:05:02 UTC Jordan refilled his water
bottle at the water dispenser in the control
room. |
|
|
3208
|
Tue Jul 13 17:36:42 2010 |
nancy | Update | IOO | Wavefront Sensing Matrix Control | For yesterday - July 12th.
Yesterday, I tried understanding
the MEDM and the Dataviewer screens for the |
|
|
3236
|
Fri Jul 16 15:39:27 2010 |
nancy | Update | IOO | Wavefront Sensors- switched off | I tuned the gain of WFS to 0 last night
at about 3am.
I turned it back on now. |
|
|
16006
|
Wed Apr 7 22:48:48 2021 |
gautam | Update | IOO | Waveplate commissioning | Summary:
I spent an hour today evening checking
out the remote waveplate operation. Basic |
|
|
16036
|
Thu Apr 15 15:54:46 2021 |
gautam | Update | IOO | Waveplate commissioning - hardware installed | [jordan,
gautam] |
|
|
16022
|
Tue Apr 13 17:47:07 2021 |
gautam | Update | IOO | Waveplate commissioning - software prepared | I spent some time today setting up a workable
user interface to control the waveplate.
Created some EPICS database |
|
|
2410
|
Mon Dec 14 12:13:52 2009 |
Jenne | Update | Treasure | We are *ROCKSTARS* ! IFO is back up | [Jenne, Kiwamu, Koji]
We |
|
|
2412
|
Mon Dec 14 13:17:33 2009 |
rob | Update | Treasure | We are *ROCKSTARS* ! IFO is back up |
|
|