| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2794
|
Mon Apr 12 20:48:51 2010 |
Aidan, Mott | Summary | Green Locking | Temperature sweep of the Innolight: df/dT ~ 3.3GHz/K |
|
|
|
2797
|
Tue Apr 13 12:39:51 2010 |
Aidan, Mott | Summary | Green Locking | Temperature sweep of the Innolight: df/dT ~ 3.3GHz/K | Please put those numbers onto wiki somewhere
at the green page or laser characterization
page. |
|
|
2814
|
Tue Apr 20 09:15:15 2010 |
steve | Summary | SAFETY | annual safety audit | |
|
|
2835
|
Fri Apr 23 18:30:49 2010 |
Aidan, Jenne, Koji | Summary | Green Locking | Green means GO! | Jenne, Koji and I assembled the Covesion
Oven today, inserted a PPKTP crystal from
Raicol, aligned the crystal to a 50mW focus |
|
|
2863
|
Sun May 2 13:04:51 2010 |
Koji | Summary | SUS | Coil Actuator Balancing and Spot Position | I liked to know quantitatively where the
spot is on a mirror.
With an interferometer and A2L |
|
|
2865
|
Sun May 2 15:38:12 2010 |
rana | Summary | SUS | Coil Actuator Balancing and Spot Position |
Oh, but it gets even better: in order
to trust the A2L script in this regard you |
|
|
2866
|
Sun May 2 16:52:44 2010 |
Koji | Summary | SUS | Coil Actuator Balancing and Spot Position | Yes, of course. But so far I am trusting
that the coils are inheretly balanced.
Probably you are talking about the |
|
|
2891
|
Thu May 6 19:23:54 2010 |
Frank | Summary | Computers | svn problems | i tried to commit something this afternoon
and got the following error message:
Command: Commit |
|
|
2899
|
Sat May 8 02:38:08 2010 |
Koji | Summary | IOO | MC incident power | As per Steve's request I checked the
MC incident power as a function of time.
The output is negative: the lower |
|
|
2903
|
Mon May 10 17:47:16 2010 |
josephb | Summary | CDS | Finished | So I finished writing a script which takes
an .ipc file (the one which defines channel
names and numbers for use with the RCG code |
|
|
2908
|
Mon May 10 20:33:29 2010 |
Koji | Summary | CDS | Finished | This IPC stuff looks really a nice improvement
of CDS.
Please just maintain the wiki updated |
|
|
2928
|
Thu May 13 23:59:46 2010 |
Zach | Summary | IOO | MC table leveled | After the recent removal of the old
IMMT and the relocation of the Faraday isolator,
the MC table was tilted a bit (southward |
|
|
2929
|
Fri May 14 03:30:45 2010 |
Koji | Summary | IOO | MC table leveled | Thanks Zach.This was a great job.
It was not mentioned but: was the
Faraday clamped down on the table? |
|
|
2931
|
Fri May 14 10:33:01 2010 |
Zach | Summary | IOO | MC table leveled | Ah... no, I didn't. That explains why there
were loose dogclamps on the table. I wrapped
them in foil and put them on the clean cart. |
|
|
2935
|
Sat May 15 04:13:33 2010 |
Koji | Summary | IOO | MC table leveled | Fixing at the next time is absolutely OK.
|
|
|
2995
|
Wed May 26 18:54:55 2010 |
Aidan | Summary | Green Locking | Mounted Crystal 724 in the Doubling Oven | Andri and I mounted the Raicol Crystal
#724 in one of the new Covesion Ovens. The
procedure was the same as before - see |
|
|
3048
|
Thu Jun 3 22:33:31 2010 |
valera | Summary | CDS | simulated plant work | I put matlab files and a summary
into the 40m wiki for the fitting of the
40m Optickle transfer functions and generating |
|
|
3052
|
Sun Jun 6 08:08:05 2010 |
rana, sanjit | Summary | Electronics | Capacitor Bridge Test | To get a feel for the Capacitive Bridge
problems, we setup a simple bridge using
fixed (1 nF) caps on a breadboard. We used |
|
|
3061
|
Wed Jun 9 21:05:44 2010 |
rana | Summary | Computers | op540m is not to be used | This is a reminder (mainly for Steve, who somehow |
|
|
3080
|
Wed Jun 16 11:31:19 2010 |
josephb | Summary | Computers | Removed scaling fonts from medm on Allegra | Because it was driving me crazy while working
on the new medm screens for the simulated
plant, I went and removed the aliased font |
|
|
3091
|
Sun Jun 20 16:07:23 2010 |
Koji | Summary | COC | Calibration of the metrology lab interferometer | Kiwamu and Koji
Summary
We have visited GariLynn's |
|
|
3102
|
Wed Jun 23 12:28:34 2010 |
Razib | Summary | Phase Camera | Weeekly Summary | This past week I have completed the following
tasks:
|
|
|
3106
|
Wed Jun 23 15:15:53 2010 |
josephb | Summary | Computers | 40m computer security issue from last night and this morning | The following is not 100% accurate, but
represents my understanding of the events
currently. I'm trying to get a full |
|
|
3125
|
Sat Jun 26 21:13:19 2010 |
rana | Summary | Computer Scripts / Programs | COMSOL 4.0 Installation | I've
installed COMSOL 4.0 for 32/64 bit Linux
in /cvs/cds/caltech/apps/linux64/COMSOL40/
It |
|
|
3127
|
Mon Jun 28 12:48:04 2010 |
josephb | Summary | CDS | CDS adapter board notes | The following is according to the drawing
by Ben Abbott found at http://www.ligo.caltech.edu/~babbott/40m_sus_wiring.pdf
This
applies to SUS: |
|
|
3129
|
Mon Jun 28 21:26:05 2010 |
rana | Summary | CDS | CDS adapter board notes | Those drawings are an OK start, but its
obvious that things have changed at the 40m
since 2002. We cannot rely on these drawings |
|
|
3163
|
Wed Jul 7 00:15:29 2010 |
tara,Rana | Summary | PSL | power spectral density from RefCav transmitted beam | I measured
the RC transmitted light signals here at
the 40m. I made all connections through |
|
|
3164
|
Wed Jul 7 10:42:29 2010 |
Koji | Summary | PSL | power spectral density from RefCav transmitted beam | How do you calibrate this to Hz/rtHz?
|
|
|
3186
|
Fri Jul 9 11:41:58 2010 |
Gopal | Summary | Optic Stacks | Top Optic Layer Complete; Mechanical Tests Giving Problems |
|
7x |
|
3189
|
Fri Jul 9 20:16:19 2010 |
rana | Summary | PSL | Things I did to the PSL today: Refcav, PMC, cameras, etc. | I re-aligned the beam into the PMC. I got
basically no improvement. So I instead changed
the .LOW setting so that PMCTRANS would no |
|
|
3190
|
Sun Jul 11 20:11:48 2010 |
rana | Summary | PSL | RC trend after the insulation removal | |
|
|
3196
|
Mon Jul 12 14:22:36 2010 |
Jenne | Summary | PSL | Things I did to the PSL today: Refcav, PMC, cameras, etc. |
|
|
|
3210
|
Tue Jul 13 21:04:49 2010 |
tara,rana | Summary | PSL | Transfer function of FSS servo | I
measured FSS's open loop transfer function.
|
|
|
3212
|
Wed Jul 14 01:05:27 2010 |
Sharmila,Katharine | Summary | elog | Maglev | Yesterday we hooked up the Quadrant Maglev
control to the power supply to test the components
in the Input/Output part of the circuit. |
|
|
3217
|
Wed Jul 14 12:12:03 2010 |
Razib | Summary | Phase Camera | Weekly update | This week I was mainly interested in investigating
the noise source at the phase camera. So
having this issue in mind, my activities |
|
|
3223
|
Wed Jul 14 19:15:26 2010 |
Gopal | Summary | Optic Stacks | REVISION: Eigenfrequency Analysis of Single Stack Complete | My previous eigenfrequency analysis
was incorrect by two orders of magnitude
due to the misuse of Young's Modulus information |
|
|
3232
|
Thu Jul 15 19:27:04 2010 |
rana | Summary | PSL | RC trend after the insulation removal | |
|
|
3247
|
Mon Jul 19 21:47:36 2010 |
rana | Summary | DAQ | DAQ timing test | Since we now have a good measurement of
the phase noise of the Rb clock
Marconi locked to the Rb clock, I wanted |
|
|
3260
|
Wed Jul 21 15:43:38 2010 |
Megan | Summary | PSL | Copper Layer Thickness on the Reference Cavity | Using the equation for thermal resistance
Rthermal = L/(k*A)
where k is the thermal conductivity |
|
|
3299
|
Tue Jul 27 16:03:36 2010 |
rana | Summary | DAQ | DAQ timing test |
|
|
|
3300
|
Tue Jul 27 16:33:50 2010 |
Koji | Summary | General | High school students tour | Jenne made the 40m tour for the annual
visit of 30-40 students.
c.f. |
|
|
3317
|
Thu Jul 29 12:13:28 2010 |
kiwamu | Summary | CDS | near term plan | [Joe and Kiwamu]
|
|
|
3318
|
Thu Jul 29 12:31:09 2010 |
Koji | Summary | General | Lab Schedule | July
29 Thu BS chamber work: Move cable
towers / green steering mirrors / (2 TTs |
|
|
3324
|
Thu Jul 29 20:43:32 2010 |
Gopal | Summary | Optic Stacks | Modeling Tips and Tilts | I have discovered a method of completely |
|
|
3339
|
Sat Jul 31 04:03:11 2010 |
Gopal | Summary | Optic Stacks | Complete Displacement Translational Transfer Function Matrix | Over the past 36 hours, I've run full-fledged
FDAs on KALLO. |
|
|
3345
|
Sun Aug 1 21:04:45 2010 |
rana | Summary | Computer Scripts / Programs | MC Autolocker fixed | Someone had left a typo in the MC autolocker
script recently while trying to set the lock
threshold to 0.09. As a result, the autlocker |
|
|
3346
|
Sun Aug 1 21:40:27 2010 |
rana | Summary | PSL | FSS: SLOWDC response | I bet you thought that the NPRO slow actuator
response could be well represented by a pole
at ~0.1 Hz? Well, that's just what they want |
|
|
3378
|
Fri Aug 6 17:47:36 2010 |
steve | Summary | General | cranes load tested at 1998 lbs |
|
|
|
3382
|
Sat Aug 7 10:47:38 2010 |
Koji | Summary | elog | elog restarted / source of the trouble eliminated | Nancy
notified me that the elog crashed. It was |
|
|
3385
|
Sat Aug 7 21:57:56 2010 |
rana | Summary | DMF | seisBLRMS restarted | The green xterm on op540m which is running
the seisBLRMS DMF got stuck somehow ~3 days
ago and lost its NDS connection. I closed |
|