| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2309
|
Fri Nov 20 16:18:56 2009 |
rob | Configuration | SUS | watchdog rampdown | I've changed the watchdog rampdown script
so it brings the SUS watchdogs to 220, instead
of the 150 it previously targeted. |
|
|
11487
|
Mon Aug 10 15:25:05 2015 |
Steve | Update | PEM | wasp nest | The wasp nest will be removed tomorrow
from from the out side of the east arm window.
The resonant frequency of the newly |
|
|
15566
|
Wed Sep 9 20:52:45 2020 |
rana | Summary | IOO | wandering line in IMC | since the summary pages are working again,
I was clicking through and noticed that there's
a wandering peak in the whitened IMC spectrogram |
|
|
2823
|
Wed Apr 21 10:09:23 2010 |
kiwamu | Update | Green Locking | waist positon of Gaussian beam in PPKTP crystals | Theoretically the waist position of
a Gaussian beam (1064) in our PPKTP crystal
differs by ~6.7 mm from that of the incident |
|
|
2850
|
Tue Apr 27 14:18:53 2010 |
kiwamu | Update | Green Locking | waist positon of Gaussian beam in PPKTP crystals | The mode profile of Gaussian beams in
our PPKTP crystals was calculated.
I |
|
|
3325
|
Thu Jul 29 21:13:39 2010 |
Dmass | Update | Green Locking | waist positon of Gaussian beam in PPKTP crystals |
|
|
|
3327
|
Thu Jul 29 22:58:25 2010 |
kiwamu | Update | Green Locking | waist positon of Gaussian beam in PPKTP crystals | - As you said, I just calculated the waist
position in the crystal because the speed
of light changes in a medium and eventually |
|
|
3328
|
Fri Jul 30 00:02:15 2010 |
Dmass | Update | Green Locking | waist positon of Gaussian beam in PPKTP crystals |
|
|
|
6305
|
Wed Feb 22 16:55:16 2012 |
Jamie | Update | SUS | wacky state of SUS input matrices | While Kiwamu and I were trying to investigate
the the vertex
glitches we were noticing excess noise |
|
|
6307
|
Thu Feb 23 02:20:07 2012 |
Zach | Update | SUS | wacky state of SUS input matrices | This reminds me that the whole Dr. SUS
situation never got taken care of. Where |
|
|
12781
|
Tue Jan 31 22:15:02 2017 |
Johannes | Update | CDS | vme crate backplane adapter boards | I made a crude sketch for how Lydia and
I envision the connector situation on the
back of the vme crates to be solved. Essentially |
|
|
12810
|
Tue Feb 7 19:14:59 2017 |
Johannes | Update | CDS | vme crate backplane adapter board layout | After fighting with Altium for what seems
like an eternity I have finished putting
my vision of the vme crate backplane adapter |
|
|
5434
|
Fri Sep 16 16:07:28 2011 |
steve | Update | SAFETY | visitors safety training | Paul, Mirko and Katrin visiting grad students
received the 40m basic safety training. |
|
|
3682
|
Fri Oct 8 17:36:16 2010 |
steve | Frogs | Photos | visiting undergrads | Prof Alan Weistein guided the 24 student
through the 40m. His performance was rated
as an enthusiastic 9.5 |
|
|
4447
|
Mon Mar 28 16:19:23 2011 |
steve | Frogs | Photos | visithing 5th graders | Suresh is captivating his audience with
gravity waves on last Friday, March 25 |
|
|
3875
|
Sat Nov 6 01:54:15 2010 |
Frank | Summary | Computers | virus definition file update on laptop for dinocam | i took
some pictures with the dinocam this afternoon.
I used the laptop computer next to it using |
|
|
1611
|
Wed May 20 01:53:48 2009 |
rob, pete | Update | Locking | violin mode filters in drstep_bang | Recently the watch script was having difficulty
grabbing a lock for more than a few seconds.
Rob discovered that the violin notch filters |
|
|
8612
|
Wed May 22 00:42:13 2013 |
Koji | Summary | SUS | violin Q | While looking at the decay of the violin
mode of the PRM, I made a simple measurement
of the decay rate. |
|
|
8036
|
Fri Feb 8 12:43:26 2013 |
yuta | Update | Computers | videocapture.py now supports movie capturing | I updated /opt/rtcds/caltech/c1/scripts/general/videoscripts.py
so that it supports |
|
|
2120
|
Mon Oct 19 18:14:28 2009 |
rob | Update | Cameras | video switch broken | The Chameleon HB (by Knox) video switch
that we use for routing video signals into
the control room monitors is broken. |
|
|
10259
|
Wed Jul 23 10:39:18 2014 |
Steve | Update | Cameras | video quad processors replaced | Quad
processor 2 & 3 were replaced. |
|
|
7236
|
Mon Aug 20 18:10:44 2012 |
Jenne | Update | Cameras | video capture script copied over to real scripts directory | The videocapture.py script is now in ...../scripts/general/
, along with the videoswitch.
Also, there's a button gui on the |
|
|
7215
|
Fri Aug 17 08:33:46 2012 |
Steve | Update | Cameras | video cameras in the dark |
|
|
|
7216
|
Fri Aug 17 09:34:27 2012 |
Koji | Update | Cameras | video cameras in the dark | I used the LED illuminations at ETMX and BS
yesterday for a tour.
I am afraid that I left them on. |
|
|
7217
|
Fri Aug 17 10:38:15 2012 |
Steve | Update | Cameras | video cameras in the dark | > I used the LED illuminations at ETMX and
BS yesterday for a tour.
> I am afraid that I left them on.
|
|
|
7219
|
Fri Aug 17 14:45:51 2012 |
rana | Update | Cameras | video cameras in the dark | The problem with the glow on the
ETMY face is due to the red light being scattered
off of the optical table from the HeNe laser |
|
|
7232
|
Mon Aug 20 09:49:01 2012 |
Steve | Update | Cameras | video cameras in the DARK |
|
|
|
3347
|
Mon Aug 2 10:26:15 2010 |
steve | Configuration | VAC | very slow pumpdown completed |
|
|
|
3699
|
Tue Oct 12 17:42:57 2010 |
yuta | Update | SUS | very first measurement of Q-values for MC1 | Background:
Data aquisition system is fixed,
and now we can use the Dataviewer to measure |
|
|
3492
|
Tue Aug 31 02:50:45 2010 |
kiwamu | Update | CDS | vertex suspensions controlled by the new CDS | I plugged the
new CDS to the vertex suspensions. |
|
|
4165
|
Tue Jan 18 10:25:23 2011 |
steve | Update | PEM | vertex crane work this week | The crane people are here. The Vertex chambers
are covered with plastic. The PSL HEPAs will
be running on high during the day. |
|
|
3624
|
Thu Sep 30 09:34:58 2010 |
steve | Update | General | vertex crane trolly drive fixed |
|
|
|
9173
|
Mon Sep 30 08:53:22 2013 |
Steve | Update | VAC | vertex crane repair schedule has changed |
|
|
|
9117
|
Mon Sep 9 15:33:06 2013 |
Steve | Update | VAC | vertex crane repair is scheduled |
|
|
|
9372
|
Wed Nov 13 08:46:03 2013 |
Steve | Update | VAC | vertex crane repair completed |
|
|
|
9185
|
Wed Oct 2 14:25:39 2013 |
Steve | Update | VAC | vertex crane is still out of order |
The smoke alarms were turned off
and surrounding areas were covered with plastic. |
|
|
9111
|
Thu Sep 5 10:47:58 2013 |
Steve | Update | VAC | vertex crane folding issue |
[Fred Goldbar, Mike Gerfen,
Dennis Coyne and Steve] |
|
|
9139
|
Wed Sep 18 14:57:12 2013 |
Steve | Update | VAC | vertex crane folding arm removed | The folding beam removed as shown.
Two man supporting it while I hammering it
out. Pin was dry and it gulled into supporting |
|
|
9146
|
Fri Sep 20 16:37:30 2013 |
Steve | Update | VAC | vertex crane folding arm is back on |
|
|
|
3616
|
Tue Sep 28 14:12:14 2010 |
steve | Update | General | vertex crane drive is out of order | The vertex crane drive is overheating,
it stopped functioning. Service man will
be here tomorrow morning. |
|
|
2631
|
Tue Feb 23 13:37:04 2010 |
kiwamu and steve | Configuration | VAC | venting the 40m vac envelope | Kiwamu and Steve have started venting
the 40m vacuum envelope.
Preparation: |
|
|
66
|
Tue Nov 6 09:45:22 2007 |
steve | Summary | SUS | vent sus trend | The mc optics dragwippings were done by locking
optics by eq stops and rotating-moving
cages so access were good. This technic worked |
|
|
7560
|
Tue Oct 16 17:13:23 2012 |
Czarina | Summary | General | vent stuff - 4 paths | I see 4+
possible paths for us to take, in terms of
a possible vent in the next few weeks: |
|
|
7558
|
Tue Oct 16 16:46:20 2012 |
Vent Czar and Czarina | Summary | General | vent stuff | We're discussing the plan for the next
vent. Now that we have all the tip-tilt
stuff in hand, we should get ready for the |
|
|
7249
|
Wed Aug 22 15:47:34 2012 |
jamie | Summary | General | vent prepartion for fast-track vent | We are discussing venting first thing next
week, with the goal of
diagnosing what's going on in the |
|
|
7255
|
Thu Aug 23 10:38:12 2012 |
Steve | Update | General | vent prepartion for fast-track vent |
|
|
|
5698
|
Wed Oct 19 14:03:41 2011 |
kiwamu | Update | General | vent prep : dichroic mirrors | Status update on dichroic mirror:
I got the specification sheet
of an aLIGO 2" dichroic mirror from |
|
|
2636
|
Tue Feb 23 19:07:43 2010 |
kiwamu and steve | Configuration | VAC | vent is completed |
|
|
|
10532
|
Wed Sep 24 13:28:48 2014 |
Steve | Update | VAC | vent is completed | The vent is completed. ITMX was kicked
up accidentally. Valve configuration: chamber
open, RGA is pumped through VM2 Maglev |
|
|
10533
|
Wed Sep 24 16:02:58 2014 |
Jenne | Update | VAC | vent is completed | [Steve, EricQ, Jenne]
ITMY and BS heavy doors are off,
light doors are on. Q is aligning the |
|