| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2826
|
Wed Apr 21 16:48:38 2010 |
josephb | Update | CDS | Hardware update | Alberto and myself went to downs and acquired
the 3rd 4x processor (Dual core, so 8x cores
total) computer. We also retrieved |
|
|
2827
|
Wed Apr 21 21:46:53 2010 |
Koji | Update | IOO | MC spot diagnosis | Zach and Koji
We
measured uncalibrated angle-to-length coupling |
|
|
2828
|
Wed Apr 21 21:56:27 2010 |
Kevin | Update | PSL | Innolight 2W Vertical Beam Profile | Koji and Kevin measured the vertical beam
profile of the Innolight 2W laser at one
point. |
|
|
2829
|
Wed Apr 21 22:11:48 2010 |
rana | Update | PSL | Innolight 2W Vertical Beam Profile | Back in Gainesville in 1997, I learned
how to do this using the chopper wheel. |
|
|
2830
|
Wed Apr 21 23:35:37 2010 |
Koji | Update | PSL | Innolight 2W Vertical Beam Profile | Good fit. I assumed sqrt(x) is a typo of
sqrt(2).
|
|
|
2831
|
Thu Apr 22 09:03:54 2010 |
steve | Omnistructure | PEM | aircondition can not be turned off | Koji and I wanted to turn off the IFO-room
AC so the wind would not blow on MC1-3. We
could not. The switches were probably bypassed |
|
|
2832
|
Thu Apr 22 15:44:34 2010 |
josephb | Update | Computers | | I updated the default FILTER.adl file located
in /home/controls/cds/advLigo/src/epics/util/
on megatron. I moved the yellow ! button |
|
|
2833
|
Thu Apr 22 20:28:40 2010 |
Jenne | Update | PEM | Seismometer Noise Characteristics |
|
|
|
2834
|
Thu Apr 22 21:42:24 2010 |
Alberto | Update | PSL | Innolight 2W Vertical Beam Profile |
What kind of fit did you use?
How are the uncertainties in the parameters |
|
|
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 |
|
|
2836
|
Fri Apr 23 21:02:14 2010 |
rana, joe | Update | LSC | Started dev of LSC FE | Joe and I started working on the new LSC
FE control today. We made a diagram of the
system in Simulink, but were unable to compile |
|
|
2837
|
Sat Apr 24 15:05:41 2010 |
Kevin | Update | PSL | 2W Vertical Beam Profile | The vertical beam profile of the Innolight
2W laser was measured at eight points along
the axis of the laser. |
|
|
2838
|
Sat Apr 24 15:50:47 2010 |
Koji | Update | PSL | re: 2W Vertical Beam Profile | 1. The vertical axis should start from
zero. The horizontal axis should be extended
so that it includes the waist. See Zach's |
|
|
2839
|
Sun Apr 25 02:56:07 2010 |
rana | Update | LSC | Started dev of LSC FE | LSC
Plant Model. That is all. |
|
|
2840
|
Sun Apr 25 10:40:21 2010 |
Koji | Update | LSC | Started dev of LSC FE | Once you made a CDS model, please update
the following wiki page. This will eventually
help you. |
|
|
2841
|
Mon Apr 26 10:21:45 2010 |
josephb | Update | LSC | Started dev of LSC FE |
|
|
|
2842
|
Mon Apr 26 11:13:28 2010 |
steve | Omnistructure | PEM | AC on/off is working |
|
|
|
2843
|
Mon Apr 26 11:14:04 2010 |
Koji | Update | Green Locking | Temperature scan for PPKTP | I scanned the temperature of the crystal
oven on Friday night in order that we can
find the optimal temperature of the crystal |
|
|
2844
|
Mon Apr 26 11:29:37 2010 |
josephb | Update | Computers | Updated bitwise.pm in RCG SVN plus other fixes | To fix a problem one of the models was
having, I checked the CVS version of the
Bitwise.pm file into the SVN (located in |
|
|
2845
|
Mon Apr 26 12:24:58 2010 |
josephb | Update | General | Daily Downs update | Talked with Jay briefly this morning.
We are due another 1-U 4 core (8
CPU) machine, which is one of the ones currently |
|
|
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 |
|
|
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.
|
|
|
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. |
|
|
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 |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
2853
|
Wed Apr 28 08:55:19 2010 |
Zach | Update | elog | elog restarted | Restarted the elog with the script
as it was down. |
|
|
2854
|
Wed Apr 28 09:21:16 2010 |
Zach | Update | elog | elog restarted | And again.
|
|
|
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 |
|
|
2856
|
Wed Apr 28 14:15:58 2010 |
Alberto | Update | IOO | MC alignment |
That's interesting.
Would it be possible to write about |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
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)
|
|
|
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 |
|
|
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 |
|
|
2873
|
Mon May 3 17:49:41 2010 |
rana | Configuration | PSL | RC Temperature Servo Turned OFF temporarily |
|
|
|
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 |
|
|
2875
|
Tue May 4 02:28:38 2010 |
rana | Configuration | PSL | RC Temperature Servo Turned OFF temporarily |
My attempt to passively measure |
|