| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2895
|
Fri May 7 14:51:04 2010 |
josephb | Update | CDS | Working on meta .mdl file scripts | I'm currently working on a set of scripts
which will be able to parse a "template"
mdl file, replacing certain key words, with |
|
|
2894
|
Fri May 7 11:21:49 2010 |
koji | Update | 40m Upgrading | New improved design for the 11MHz photodiode | How much is the width?
|
|
|
2893
|
Thu May 6 19:57:26 2010 |
Alberto | Update | 40m Upgrading | New improved design for the 11MHz photodiode |
|
|
|
2892
|
Thu May 6 19:51:22 2010 |
Jenne | Update | PEM | New 'Seismic Spectrum of the 40m' | For reasons unknown, the seismic spectra
posted above Rosalba has been wrong since
~January when it was first posted. |
|
|
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 |
|
|
2890
|
Thu May 6 18:43:58 2010 |
rana | Update | PEM | Noise floor of the Ranger Seismometer | I
added a noise model of the SR560 to the LISO
opamp.lib. This assumes you're |
|
|
2889
|
Thu May 6 18:25:20 2010 |
Jenne | Update | PEM | Acc power supply turned on | The accelerometer power supply / preamp
board has been OFF because of exciting new
accelerometer measurements. It's now |
|
|
2888
|
Thu May 6 17:54:44 2010 |
Zach Korth -- Committee Oversight (Fun Division) | Omnistructure | TMI | Minutes from the Lab Organization Commitee meeting | Where are we going to put the tiki bar?
The ice cream machine? I am disappointed
in the details that appear to have been glossed |
|
|
2887
|
Thu May 6 17:47:01 2010 |
Alberto, kiwamu, Jc The 3rd (aka The Drigg) | Omnistructure | TMI | Minutes from the Lab Organization Commitee meeting | Today we met and we finally come up with
a lot of cool, clever, brilliant, outstanding
ideas to organize the lab. |
|
|
2886
|
Thu May 6 16:18:37 2010 |
Alberto | Update | 40m Upgrading | New improved design for the 11MHz photodiode | After munching analytical models, simulations,
measurements of photodiodes I think I got
a better grasp of what we want from them, |
|
|
2885
|
Thu May 6 11:34:35 2010 |
rob | Update | CDS | lsc.mdl and ifo.mdl to build (with caveats) |
|
|
|
2884
|
Thu May 6 01:06:16 2010 |
Koji | Update | IOO | MC spot centering cont'd (Triumph) | Zach and Koji,
We
finally aligned the incident beam enough |
|
|
2883
|
Wed May 5 16:58:21 2010 |
Koji | Update | PSL | 2W hooked up to the interlock service | Ben, Steve, and Koji
Ben came to the 40m and hooked up
a cable to the main interlock service. |
|
|
2882
|
Wed May 5 16:32:39 2010 |
Alberto | Update | 40m Upgrading | New REFL55 PD, 11MHz rejection | Here's the (calibrated) transimpedance
of the new REFL55 PD.
T(55.3) / T_(11.06) = 93 dB |
|
|
2881
|
Wed May 5 02:37:55 2010 |
rana | Configuration | PSL | RC Temperature Servo Turned OFF temporarily |
|
|
|
2880
|
Wed May 5 01:19:05 2010 |
Koji | Update | IOO | MC spot centering cont"d | Koji and Zach
We improved the beam axis rotaion
on the MC. We still have |
|
|
2879
|
Tue May 4 18:40:27 2010 |
rana | HowTo | Electronics | Marconi phase noise measurement setup | To check the UGF, I increased the gain
of the PLL by 10 and looked at how much the
error point got suppressed. The green trace |
|
|
2878
|
Tue May 4 14:57:53 2010 |
josephb | Update | Computers | Ottavia has moved | Ottavia was moved this afternoon from the
control room into the lab, adjacent to Mafalda
in 1Y3 on the top shelf. It has been |
|
|
2877
|
Tue May 4 13:14:43 2010 |
josephb | Update | CDS | lsc.mdl and ifo.mdl to build (with caveats) | I got around to actually try building the
LSC and IFO models on megatron. Turns
out "ifo" can't be used as a model |
|
|
2876
|
Tue May 4 06:32:58 2010 |
alberto | Configuration | PSL | RC Temperature Servo Turned OFF temporarily |
|
|
|
2875
|
Tue May 4 02:28:38 2010 |
rana | Configuration | PSL | RC Temperature Servo Turned OFF temporarily |
My attempt to passively measure |
|
|
2874
|
Mon May 3 19:21:43 2010 |
Alberto | DAQ | Environment | Boot fest | [Alberto, Koji, Rana]
The RFM network failed today. We
had to reboot the frame builder anf restart |
|
|
2873
|
Mon May 3 17:49:41 2010 |
rana | Configuration | PSL | RC Temperature Servo Turned OFF temporarily |
|
|
|
2872
|
Mon May 3 16:53:27 2010 |
josephb | Update | CDS | Updated lsc.mdl and the ifo plant model with memory locations | I've updated the LSC and IFO models that
Rana created with new shared memory locations.
I've used the C1:IFO- for the ifo.mdl file |
|
|
2871
|
Mon May 3 15:39:39 2010 |
josephb | Update | CDS | Daily Downs update | Talked with Jay briefly today. Apparently
there are 3 IO chassis currently on the test
stand at Downs and undergoing testing (or |
|
|
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)
|
|
|
2869
|
Mon May 3 01:16:50 2010 |
rana | HowTo | Electronics | Marconi phase noise measurement setup | To try the 3-corner hat method
on the Marconis, I started to set up the |
|
|
2868
|
Mon May 3 00:36:49 2010 |
Koji | Update | SUS | How to steer the incident beam to the MC? | Actually, I tried some tweaks of the input
steering to get the beam being more centered
on the MC mirrors on Saturday evening. |
|
|
2867
|
Sun May 2 17:16:43 2010 |
Koji | Update | SUS | How to steer the incident beam to the MC? | Deviations of the MC spot from the center
of the mirrors were measured.
MC1H = +0.29 mm |
|
|
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 |
|
|
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 |
|
|
2864
|
Sun May 2 15:28:25 2010 |
Koji | Update | IOO | Spot Positions of MC1/MC3 | Summary
The spot positions on the MC mirrors
were measured with coil balance gains. |
|
|
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 |
|
|
2862
|
Fri Apr 30 23:16:51 2010 |
Koji | Update | SUS | SRM/PRM ready for baking | Kiwamu and Koji
- Checked the SRM/PRM balancing after
the gluing. |
|
|
2861
|
Thu Apr 29 15:48:47 2010 |
josephb | Update | CDS | New CDS overview diagram in wiki | I've added a diagram in the wiki under
IFO Upgrade 2009-2010->New CDS->Diagram
section Joe_CDS_Plan.pdf (the .svg file I |
|
|
2860
|
Thu Apr 29 14:37:16 2010 |
josephb | Update | CDS | New Channel Name to Memory Location file | Awhile back we had requested a
feature for the RCG code where a single file
would define a memory location's name as |
|
|
2859
|
Wed Apr 28 16:15:02 2010 |
Kevin | Update | PSL | Accelerometer Calibration | Koji, Steve, and Kevin looked into calibrating
the Wilcoxon accelerometers. Once calibrated,
the accelerometers will be used to monitor |
|
|
2858
|
Wed Apr 28 14:42:55 2010 |
Zach | Update | IOO | MC alignment | Sure. I figured I would put up a How-To
if it works. |
|
|
2857
|
Wed Apr 28 14:22:36 2010 |
Kevin | Update | PSL | re: 2W Vertical Beam Profile | I used the Mathematica CurveFit package
that we use in Ph6/7 to make the fits for
the beam profile data. I wrote two functions |
|
|
2856
|
Wed Apr 28 14:15:58 2010 |
Alberto | Update | IOO | MC alignment |
That's interesting.
Would it be possible to write about |
|
|
2855
|
Wed Apr 28 12:05:44 2010 |
Zach | Update | IOO | MC alignment | I have worked out the first set of adjustments
to make on the MC mirrors (all angle figures
are in units of the increments on the control |
|
|
2854
|
Wed Apr 28 09:21:16 2010 |
Zach | Update | elog | elog restarted | And again.
|
|
|
2853
|
Wed Apr 28 08:55:19 2010 |
Zach | Update | elog | elog restarted | Restarted the elog with the script
as it was down. |
|
|
2852
|
Tue Apr 27 22:28:58 2010 |
Zach | Update | IOO | MC alignment | Beginning last week, I have been helping
Koji with some of the IO work that must be
done for the 40m upgrade. The first thing |
|
|
2851
|
Tue Apr 27 15:29:16 2010 |
Kevin | Update | PSL | re: 2W Vertical Beam Profile | I thought that the micrometer I was using
to move the razor through the laser beam
was metric; however, it is actually english. |
|
|
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 |
|
|
2849
|
Tue Apr 27 11:16:13 2010 |
josephb | Configuration | CDS | Wiki page with CDS .mdl names, shared memory allocation | I've added a new page in the wiki which
describes the current naming scheme for the
.mdl model files used for the real time code |
|
|
2848
|
Mon Apr 26 21:12:53 2010 |
Koji | Update | SUS | PRM/SRM standoffs glued | Kiwamu and Koji
The PRM/SRM were balanced with the
standoffs. We glued them to the mirror. |
|
|
2847
|
Mon Apr 26 17:34:31 2010 |
Koji | Update | PSL | re: 2W Vertical Beam Profile | Give me the plot of the fit, otherwise
I am not convinced.
|
|
|
2846
|
Mon Apr 26 16:51:37 2010 |
Kevin | Update | PSL | re: 2W Vertical Beam Profile | I tried Koji's suggestions for improving
the fit to the vertical beam profile; however,
I could not improve the uncertainties in |
|