| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
3183
|
Thu Jul 8 20:32:22 2010 |
nancy | Update | IOO | MC alignment values. | I and Koji were trying to lock the mode
cleaner for measuring the beam power at
MC2 end. That is when we obtained the trans |
|
|
3184
|
Thu Jul 8 21:44:43 2010 |
nancy | Update | IOO | WFS calculations |
I just found the singular values
and the condition number of the 4*4 matrix |
|
|
3197
|
Mon Jul 12 15:49:56 2010 |
nancy | Update | SUS | Characterisation of the QPD | I and koji setup the measurement of the
QPD response to the pitch and yaw displacements
of the beam spot. |
|
|
3198
|
Mon Jul 12 17:05:30 2010 |
nancy | Update | SUS | Characterisation of the QPD |
|
|
|
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 |
|
|
3218
|
Wed Jul 14 12:31:11 2010 |
nancy | Update | General | Weekly Update | Summary of this week's work
Wednesday
- Aligned the mode cleaner with Koji, and
then measured the beam characteristics at |
|
|
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. |
|
|
3253
|
Tue Jul 20 18:29:43 2010 |
nancy | Update | IOO | QPD installed behind the MC2 |
Yesterday I installed teh QPD on
the table behind MC2, and observed teh signal |
|
|
3352
|
Tue Aug 3 03:15:06 2010 |
nancy | Update | IOO | MC back to locked mode | I turned the WFS gain to 0.02 back, and
the MC is locked, the data for the seismic
motion might be meaningful nowforth. |
|
|
3357
|
Wed Aug 4 11:10:28 2010 |
nancy | Update | IOO | Mode Cleaner WFS | Yesterday, I started twiddling with the
Mode Cleaner at about 2 pm. |
|
|
3358
|
Wed Aug 4 12:49:42 2010 |
nancy | Update | IOO | Mode Cleaner WFS |
|
6x |
|
3365
|
Thu Aug 5 01:29:39 2010 |
nancy | Update | IOO | Mode Cleaner WFS |
I calculated the MC1&3 Vs WFS1&2
Output Matrix today from the above measurements |
|
|
3366
|
Thu Aug 5 11:48:52 2010 |
nancy | Update | IOO | Mode Cleaner WFS |
|
|
|
3387
|
Mon Aug 9 13:32:02 2010 |
nancy | Update | IOO | Mode Cleaner ASC | E-log entry for
Friday - will attach more plots to this entry |
6x |
|
3389
|
Mon Aug 9 21:50:50 2010 |
nancy | Update | IOO | Mode Cleaner ASC |
|
|
|
3417
|
Thu Aug 12 23:49:04 2010 |
nancy | Update | Environment | Laser chiller temp raised | Since the laser is off, Jenne and I rasied
the chiller-chiller (small AC in the Control
Room) set point temperature to |
|
|
3419
|
Fri Aug 13 09:41:00 2010 |
nancy | Omnistructure | Computers | Charger for dell laptop | I have taken the charger for the
dark gray dell laptop from its station, and
have labelled the information there too. |
|
|
3244
|
Mon Jul 19 14:14:03 2010 |
nancy, koji | Update | IOO | QPD Response Transfer Function | Friday night myself and Koji measured the
Transfer function of the QPD circuit at MC2
side using a chopper . Following was our |
|
|
3245
|
Mon Jul 19 14:16:01 2010 |
nancy, koji | Update | IOO | QPD Response Transfer Function |
|
|
|
3372
|
Fri Aug 6 10:44:55 2010 |
nancy, koji | Update | IOO | Mode Cleaner WFS |
|
|
|
10117
|
Tue Jul 1 18:06:13 2014 |
nichin | Update | Computer Scripts / Programs | Network Analyzer NWAG4395A data acquisition | EDIT:
The script and template file have been moved
to /opt/rtcds/caltech/c1/scripts/general/netgpibdata/ |
|
|
8035
|
Fri Feb 8 12:42:45 2013 |
nicolas | Summary | General | PRC/arm mode matching calculations |
|
|
|
8693
|
Tue Jun 11 10:00:54 2013 |
nicolas | Update | Green Locking | Y arm locked with green but bad mode matching |
|
|
|
8701
|
Thu Jun 13 16:01:48 2013 |
nicolas | Update | Green Locking | Y arm locked with green but bad mode matching |
|
|
|
8702
|
Thu Jun 13 16:13:08 2013 |
nicolas | Update | LSC | New modeled sensing matrix | I'd repeat the measurement for REFL11.
The PRC arrow has some big error bar on it,
and maybe the true error is even bigger. |
|
|
9385
|
Thu Nov 14 14:27:51 2013 |
nicolas | Omnistructure | General | SR785 Analyzer CRT replaced | The 785 analyzer in the 40 had a
wonky hard to read screen. I was hoping that
a new white CRT would fix all the problems. |
|
|
9709
|
Mon Mar 10 21:13:43 2014 |
nicolas | Summary | LSC | Composite Error Signal for ARms (2) | In order to better understand how the composite
signal would behave in the presence of noise,
I decided to do a simple analysis of the |
|
|
10014
|
Mon Jun 9 20:07:53 2014 |
nicolas | HowTo | Computer Scripts / Programs | Latex (math) in the elog |
|
|
|
10543
|
Fri Sep 26 11:44:55 2014 |
nicolas | Frogs | Computer Scripts / Programs | Loaded larry's fake filter into C1:ALS-OFFSETTER2 | Larry and Nicolas
Larry's transfer function measurements
suddenly started returning 0dB 0degrees when |
|
|
99
|
Wed Nov 14 07:48:38 2007 |
norna | Omnistructure | OMC | OMC Cable dressing | [Snipped from an email]
1) Last Friday Pinkesh and I set the OMC |
|
|
10055
|
Wed Jun 18 11:57:44 2014 |
not Jenne | Update | LSC | IFO alignment recovery |
|
|
|
5917
|
Wed Nov 16 20:30:27 2011 |
not Koji | Update | IOO | MC unlocked and misaligned. |
|
|
|
10182
|
Fri Jul 11 09:41:43 2014 |
not Koji | Update | General | Coupling telescope design |
|
|
|
12258
|
Wed Jul 6 21:09:09 2016 |
not Koji | Update | Computer Scripts / Programs | New Tabs and Working Summary Pages | I don't know much about how the cron
job runs, I'll forward this to Max.
|
|
|
14181
|
Thu Aug 23 16:10:13 2018 |
not Koji | Update | IMC | MC/PMC trouble | Great, thanks!
|
|
|
14537
|
Thu Apr 11 12:21:01 2019 |
not Koji | Update | PSL | PSL fan is noisy | I could probably install the new fan if
we have one. Can you do without the
laser for a while? |
|
|
15586
|
Sat Sep 19 19:37:16 2020 |
not Koji | Update | VAC | TP3 RP failure | Disconcerting because those tip seals were
just replaced [15417].
Maybe they were just defective, but if there |
|
|
16561
|
Mon Jan 10 14:00:44 2022 |
not Koji | Update | BHD | SOS assembly -- SR2 | Yes,
For the thin optics adapter design,
we want Peek 1/4-20 screw (part # 98885A131) |
|
|
16568
|
Tue Jan 11 09:53:14 2022 |
not Koji | Update | BHD | SOS assembly -- Peek screws and nuts | I handed the Peek parts we got from McMaster
to Jordan for C&B. |
|
|
5784
|
Wed Nov 2 11:29:04 2011 |
not Zach | Update | SUS | "Dr. SUS" progress |
|
|
|
6928
|
Fri Jul 6 09:00:34 2012 |
not Zach | Update | Computers | NDS2 client now working on Ubuntu machines |
|
|
|
10073
|
Thu Jun 19 14:52:20 2014 |
not ericq | Update | Computer Scripts / Programs | control room bashrc change |
|
|
|
14200
|
Tue Sep 18 17:56:01 2018 |
not gautam | Update | IOO | PMC and IMC relocked, WFS inputs turned off | I restarted the LSC models in the usual
way via the c1lsc reboot script. After doing
this I was able to lock the YARM configuration |
|
|
14253
|
Sun Oct 14 16:55:15 2018 |
not gautam | Update | CDS | pianosa upgrade | DASWG is not what we want to use for config;
we should use the K. Thorne LLO
instructions, like I did for ROSSA. |
|
|
15113
|
Mon Jan 6 19:05:09 2020 |
not gautam | Update | PSL | Assembly underway for c1psl upgrade | I found them, thanks. After c1psl, there
are 4 2GB DIMM cards and 1 SSD left. I moved
them into the storage bins with all the other |
|
|
15127
|
Wed Jan 15 16:08:40 2020 |
not gautam | Update | PSL | Assembly underway for c1psl upgrade | You're right. We had the right
idea before but we got confused about this
issue. I changed all the XT1121s to XT1111 |
|
|
15647
|
Wed Oct 28 14:01:03 2020 |
not gautam | Update | General | ISS checkout | that little PD in the black mount was never
very good. The AD829 is not a good opamp
for transimpedance and especially not good |
|
|
13930
|
Thu Jun 7 22:36:09 2018 |
not keerthana | Update | PSL | observing the resonance signal corresponding to the injected frequency. | I worked a bit on the PSL table today |
|
|
9849
|
Thu Apr 24 14:23:09 2014 |
not manasa | Update | LSC | Y end whitening board |
maybe the tantalum caps on
the daughter board power supply lines are |
|
|
14220
|
Mon Oct 1 12:03:41 2018 |
not yuki | Configuration | ASC | PZT driver board verification | I assume this QPD set is a D1600079/D1600273
combo.
How much was the SUM output during |
|