| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
3235
|
Fri Jul 16 13:05:48 2010 |
Kyung-ha | Update | SUS | Late update for 7/13 Tue (Tip Tilts) | [Jenne & Kyung-ha]
We suspended the mirror to one of
the main frame with the ECD backplane we |
|
|
4893
|
Tue Jun 28 02:11:47 2011 |
Jenne | Update | Locking | Latest MICH noise budget | I have measured / calculated the latest
MICH noise budget. It doesn't really
look all that stellar. |
|
|
5035
|
Tue Jul 26 03:15:52 2011 |
Jenne | Update | Locking | Latest MICH noise budget | [Jenne, Rana]
We had another look at the MICH noise
budget tonight. Rana has verified that my |
|
|
10014
|
Mon Jun 9 20:07:53 2014 |
nicolas | HowTo | Computer Scripts / Programs | Latex (math) in the elog |
|
|
|
3027
|
Tue Jun 1 18:39:59 2010 |
Nancy | Update | | Lead spheres for the seismographs |
the lead spheres that were placed
below the granite slab have been flattened |
|
|
16717
|
Wed Mar 9 10:23:28 2022 |
Jordan | Update | VAC | Leak Testing of New Manual Gate Valve - Attempt #1 | Jordan, Chub, Paco
Chub and I went into the lab this
morning to leak check the new gate valve |
|
|
16721
|
Thu Mar 10 09:39:59 2022 |
Jordan | Update | VAC | Leak Testing of New Manual Gate Valve - Attempt #2 | This morning Chub and I leak checked the
manual gate valve with the RGA and helium.
There was no change in the helium partial |
|
|
14673
|
Thu Jun 13 22:46:41 2019 |
Koji | Update | IOO | Left IMC at the intermediate gains | SURFS want some locking of IMC for camera
adjustment.
So I left the IMC with intermediate |
|
|
1799
|
Mon Jul 27 19:55:19 2009 |
Koji | HowTo | IOO | Lens selection: plano-convex? or bi-convex? | Q. When should we use plano-convex lenses,
and when should we use bi-convex?
As I had the same question from Jenne |
|
|
13000
|
Mon May 22 10:15:14 2017 |
jigyasa | Summary | telescope design | Lens tubes and object distances | Since the
f numbers of the lenses in the proposed design
with biconvex lenses are a little less than |
|
|
1069
|
Wed Oct 22 17:48:58 2008 |
Yoichi | Update | General | Lenses for focusing the optical lever laser (Re:divergence of He Ne 1035P) | Steve had difficulty in finding lenses for
focusing the HeNe laser for the ITM op-lev.
Following his measurement of the beam divergence, |
|
|
12922
|
Fri Mar 31 16:10:33 2017 |
Steve | Update | Treasure | Les Guthman | Les Guthman interviews gradstudent
Graig.
Main laser emergency shut off was |
|
|
4446
|
Mon Mar 28 15:49:18 2011 |
josephb | Update | CDS | Lessons from LST | [Koji,Joe]
PART 1:
Koji was unable to build his c1lst |
|
|
2870
|
Mon May 3 01:35:41 2010 |
Koji | Update | SUS | Lessons learned from MC spot centering | Lessons
learned on the beam spot centering (so far)
|
|
|
3233
|
Thu Jul 15 23:51:47 2010 |
Mr. Maric | HowTo | SUS | Levitate me if you can | You guys must work harder.
|
|
|
11365
|
Fri Jun 19 03:00:56 2015 |
ericq | Update | CDS | Library Model Parts examined | All simulink diagrams being used at the
40m are now under version control. I have
compiled, installed, and restarted all current |
|
|
17276
|
Thu Nov 17 09:06:35 2022 |
JC | Summary | General | Light Replace | Electrical Shop came in today to replace
the lightbulbs around 40m. I supervised the
entire visit, inside and outside the lab |
|
|
10670
|
Wed Nov 5 11:37:29 2014 |
manasa | Update | General | Light from Y end reaches PSL table | [Steve, Diego, Manasa]
Since the beatnotes have disappeared,
I am taking this as a chance to put the FOL |
|
|
5313
|
Sat Aug 27 20:38:17 2011 |
Suresh | Update | IOO | Light is back on WFS | [Valera, Suresh]
We wanted to continue
the work with WFS servo loops. As the |
|
|
4849
|
Tue Jun 21 19:54:33 2011 |
Suresh | Update | Green Locking | LightWave NPRO power supply shifted to ETMY end table | The Lightwave NPRO power supply which
is being shared between the AS table and
the ETMY table has been shifted back to the |
|
|
4832
|
Fri Jun 17 16:05:07 2011 |
kiwamu | Update | ABSL | LightWave out of MOPA box | [Suresh / Kiwamu]
We did the following things
: |
|
|
14039
|
Thu Jul 5 17:33:36 2018 |
keerthana, sandrine | Update | elog | Lights not working |
N/S ARM FL.
N/S ARM
INC.
These two lights inside
the 40m-lab are not working. |
|
|
11970
|
Tue Feb 2 18:35:47 2016 |
gautam | Update | Green Locking | Lightwave NPRO moved from PSL table to SP table | I've moved the following components
that was a part of Koji's setup from
the PSL table to the SP table so that I may |
|
|
11971
|
Tue Feb 2 18:54:02 2016 |
Koji | Update | Green Locking | Lightwave NPRO moved from PSL table to SP table | jiIn fact, it is one of the most difficult
type mode profiling to measure a beam directly
out from a laser source. |
|
|
11973
|
Wed Feb 3 23:23:47 2016 |
gautam | Update | Green Locking | Lightwave NPRO moved from PSL table to SP table | As Koji pointed out in the previous elog,
the CCD beam profiler was ill suited for
this measurement. Nevertheless, to get a |
|
|
11974
|
Thu Feb 4 09:16:46 2016 |
Koji | Update | Green Locking | Lightwave NPRO moved from PSL table to SP table | I don't think the discrepancy is a
serious issue as long as the mode is clean.
The mode is determined by the NPRO crystal |
|
|
11977
|
Fri Feb 5 00:23:01 2016 |
gautam | Update | Green Locking | Lightwave NPRO moved from PSL table to SP table | I've repeated the measurement for the
x-direction and also did the y-direction,
taking into account Koji's suggestion |
|
|
11951
|
Tue Jan 26 17:50:22 2016 |
gautam | Update | Green Locking | Lightwave frequency noise measurement | I attempted to measure the frequency noise
of the extra Lightwave NPRO we have that
is currently sitting on the PSL table. I |
|
|
11953
|
Wed Jan 27 18:19:45 2016 |
gautam | Update | Green Locking | Lightwave frequency noise measurement | After adjusting the alignment of the two
beams onto the PD, I managed to recover a
stronger beatnote of ~ -10dBm. I managed |
|
|
11956
|
Thu Jan 28 00:29:30 2016 |
gautam | Update | Green Locking | Lightwave frequency noise measurement | Summary of the work done today:
Alignment and other work on
PSL table |
|
|
11969
|
Mon Feb 1 18:11:25 2016 |
gautam | Update | Green Locking | Lightwave frequency noise measurement | Before distrubing the beat setup with the
spare Lightwave laser, I wanted to see if
I could resolve the apparent difference in |
|
|
12075
|
Wed Apr 13 18:25:07 2016 |
gautam | Update | endtable upgrade | Lightwave health check | [Koji,gautam]
Lightwave NPRO information:
Model: 126-1064-700 |
|
|
12079
|
Fri Apr 15 18:38:12 2016 |
gautam | Update | endtable upgrade | Lightwave health check - NO IMPROVEMENT | I re-measured the power levels today.
We have ~205mW out of the NPRO,
and ~190mW after the Faraday. It doesn't |
|
|
46
|
Thu Nov 1 16:34:47 2007 |
Andrey Rodionov | Summary | Computers | Limitation on attachment size of E-LOG |
I discovered yesterday when I was attaching
photos that it is NOT possible to attach |
|
|
6146
|
Thu Dec 22 20:49:33 2011 |
Koji | Update | IOO | Limitter activated for WFS servos | I set the limitters of the MC WFS servos
not to inject the feedback more than 2000.
The residual of the WFS shakes the |
|
|
6732
|
Thu May 31 16:54:12 2012 |
Jenne | Update | Green Locking | Links to old elogs for green beatnote laser temps | Because I keep taking a long time to search
for these, since I can't remember the keywords
in the different entries, here are the links: |
|
|
1904
|
Fri Aug 14 15:20:42 2009 |
josephb | Summary | Computers | Linux1 now has 1.5 TB raid drive |
|
|
|
478
|
Thu May 15 10:40:21 2008 |
steve | HowTo | General | Lisa Goggin, PhD | Lisa Goggin successfully defended her thesis
on May, 13 2008
|
|
|
7247
|
Wed Aug 22 01:54:03 2012 |
Jenne | Update | General | List o' things: YarmASS, ETMXTcamera, POXwhiteningTriggering | While meditating
on other things, I have noticed / found the
following today: |
|
|
11190
|
Wed Apr 1 16:52:02 2015 |
Jenne | Update | LSC | List of measurements | I'd like to get a concrete list of
measurements written down, so that it's
clear what needs to be done before I graduate. |
|
|
14582
|
Sun Apr 28 16:00:17 2019 |
gautam | Update | Computer Scripts / Programs | List of suspension test | Here are some tests we should script.
Checking Coil Vmons, OSEM
PDmons, and watchdog enable wiring
Disable |
|
|
10126
|
Wed Jul 2 22:58:11 2014 |
Jenne | Update | LSC | Little Bo-Peep has found her phase | Never
mind. This is just the
low pass filter that Den put in to try to |
|
|
10125
|
Wed Jul 2 21:30:42 2014 |
Jenne | Update | LSC | Little Bo-Peep has lost her phase | Little Bo-Peep has lost her phase,
|
|
|
2284
|
Tue Nov 17 21:09:17 2009 |
Jenne, rana | Update | General | Little Thorlabs Photodiode | [Rana, Jenne]
We opened up the little Thorlabs
battery operated PD to see what was inside. |
|
|
6511
|
Mon Apr 9 17:03:38 2012 |
Den | Update | Environment | Lms vs Wiener | I tried to figure out why offline LMS filter
subtract seismic noise much better from MC_F
then the Wiener filter. I did the calculations |
|
|
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 |
|
|
15633
|
Mon Oct 19 15:38:42 2020 |
Koji | Update | Electronics | Loan: A file binder "40m wiring diagram" | I'll bring a file binder "40m
wiring diagram" to home at the next
chance. |
|
|
10122
|
Wed Jul 2 15:35:34 2014 |
ericq | Update | Computer Scripts / Programs | Local Chiara backups | Koji has provided a 2TB USB3 external hard
drive that will get daily backups of chiara:/home/cds,
the idea being that if the internal HD at |
|
|
10236
|
Fri Jul 18 15:21:12 2014 |
ericq | Update | Computer Scripts / Programs | Local Chiara backups |
|
|
|
15167
|
Tue Jan 28 17:36:45 2020 |
gautam | Configuration | Computers | Local EPICS7.0 installed on megatron | [Jon, gautam]
We found that the caput |
|