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  40m Log, Page 47 of 341  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  3232   Thu Jul 15 19:27:04 2010 ranaSummaryPSLRC trend after the insulation removal   Untitled.pnga.pngb.png 
  3247   Mon Jul 19 21:47:36 2010 ranaSummaryDAQDAQ timing testSince 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 MeganSummaryPSLCopper Layer Thickness on the Reference CavityUsing the equation for thermal resistance
Rthermal = L/(k*A)
where k is the thermal conductivity
  
  3299   Tue Jul 27 16:03:36 2010 ranaSummaryDAQDAQ timing test

    
        
 Untitled.png 
  3300   Tue Jul 27 16:33:50 2010 KojiSummaryGeneralHigh school students tourJenne made the 40m tour for the annual
visit of 30-40 students.
c.f.
 IMG_2657.jpg 
  3317   Thu Jul 29 12:13:28 2010 kiwamuSummaryCDSnear term plan [Joe and Kiwamu]
 current_setup_v2.png 
  3318   Thu Jul 29 12:31:09 2010 KojiSummaryGeneralLab ScheduleJuly 
29 Thu BS chamber work: Move cable
towers / green steering mirrors / (2 TTs
 PSL_work_schedule.pdf 
  3324   Thu Jul 29 20:43:32 2010 GopalSummaryOptic StacksModeling Tips and TiltsI have discovered a method of completely  XTrans_XDisp.pngXTrans_XDisp.pngYTrans_XDisp.pngZTrans_XDisp.png 
  3339   Sat Jul 31 04:03:11 2010 GopalSummaryOptic StacksComplete Displacement Translational Transfer Function MatrixOver the past 36 hours, I've run full-fledged
FDAs on KALLO.
 Progress_Report_2.png 
  3345   Sun Aug 1 21:04:45 2010 ranaSummaryComputer Scripts / ProgramsMC Autolocker fixedSomeone 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 ranaSummaryPSLFSS: SLOWDC responseI 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
 Untitled.png 
  3378   Fri Aug 6 17:47:36 2010 steveSummaryGeneralcranes load tested at 1998 lbs


   
        
            
 0.9ton.PDFP1060523.JPGP1060532.JPGP1060541.JPG 
  3382   Sat Aug 7 10:47:38 2010 KojiSummaryelogelog restarted / source of the trouble eliminatedNancy
notified me that the elog crashed. It was
  
  3385   Sat Aug 7 21:57:56 2010 ranaSummaryDMFseisBLRMS restartedThe green xterm on op540m which is running
the seisBLRMS DMF got stuck somehow ~3 days
ago and lost its NDS connection. I closed
 Untitled.png 
  3395   Tue Aug 10 22:40:55 2010 KojiSummaryPEMAccelerometer located on and below the PSL tableResult
of the accelerometer measurement
Introduction

We wanted to characterize
 PEM_100809.pdf 
  3403   Wed Aug 11 16:56:00 2010 KojiSummaryEnvironmentCovering of the IFOKatharine, Sharmila, Gopal, Kiwamu,
Jenne, Aidan, Steve, and Koji
A guy from the carpenter shop has
 IMG_2732.jpg 
  3423   Fri Aug 13 20:58:20 2010 JennaSummaryElectronicsRubidium clock phase noise measurement Here's an overview of the rubidium
measurement:
 6x 
  3472   Wed Aug 25 16:13:32 2010 steveSummaryPEMPSL optical table is back into operation at 32.75" levelThe tile work was done yesterday after
noon.
This morning Mike Gerfen and me lowered
 P1060764.JPGP1060768.JPGP1060777.JPGP1060776.JPGP1060780.JPG 
  3487   Mon Aug 30 13:57:25 2010 KojiSummaryPSLPSL table vibrational performance after the upgradeJenne and Koji
Last week Jenne has put the accelerometers
on and under the PSL table immediately after
 PEM_100830_SPE.pdfPEM_100830.pdf 
  3488   Mon Aug 30 18:22:00 2010 ranaSummaryPSLPSL Enclosure is UNSTABLEThe lifting and resetting of the
BLUE PSL enclosure has made it unstable somehow.
When I push on it a little it rocks
  
  3513   Thu Sep 2 14:11:17 2010 steveSummaryPEMsouth end crane balancing is completedThe crane I -beam now leveled at all degrees
of rotation.  The lower hinge was moved
southward  about 1/4 of an inch. 
 P1060798.JPGP1060800.JPGP1060804.JPG 
  3545   Wed Sep 8 11:56:24 2010 kiwamuSummaryCDSSeptember CDS test plan Joe and Kiwamu
We discussed about our CDS plan for
this September. The summary of the plan
  
  3567   Mon Sep 13 12:09:42 2010 kiwamuSummaryGeneralelog restarted Elog didn't respond, so I restarted
it with the script.
Before killing the process somehow
  
  3576   Wed Sep 15 14:34:57 2010 josephbSummaryCDSPlan for RFM switch overSteps for RFM switch over:
1) Ensure the new frame builder code
is working properly:
  
  3579   Wed Sep 15 19:29:13 2010 valeraSummary PSL power budget
    
        

            Location
  
  3596   Thu Sep 23 02:23:04 2010 koji,taraSummaryElectronicsTesting new TTFSS I tested the new table top
frequency stabilization system(TTFSS), 
  
  3597   Thu Sep 23 02:45:30 2010 KojiSummaryComputersnodus gracefully rebootedZach> Nodus seemed to be working fine
again, and I was browsing the elog with no
  
  3603   Thu Sep 23 23:24:43 2010 rana, johnny, taraSummaryPSLAM modulate AOM to measure RefCav Thermo-Optic coefficientBig Johnny and I hacked a function
generator output into the cross-connect of
the 80 MHz VCO driver so that we could modulate
  
  3620   Wed Sep 29 12:08:28 2010 josephb, alexSummaryCDSLast burt save of old controlsThis is being recorded for posterity so
we know where to look for the old controls
settings.
  
  3647   Tue Oct 5 11:42:20 2010 kiwamuSummaryGreen Lockingdeveloping green locking plant With a help from Joe, I made a diagram
of the simulated plant for green locking
in order to get better understanding and
 green_sm3.png 
  3655   Tue Oct 5 18:27:18 2010 Joonho LeeSummaryElectronicsCCD cable's impedenceToday
I checked the CCD cables which is connected
to the VIDEOMUX.
  
  3657   Wed Oct 6 00:32:01 2010 ranaSummaryDAQNDS2This is the link to the NDS2 webpage:
https://www.lsc-group.phys.uwm.edu/daswg/wiki/NetworkDataServer2
We should install this so that we
  
  3660   Wed Oct 6 14:49:54 2010 ranaSummaryloreSteve on the sea   jacques.jpg 
  3685   Sun Oct 10 18:09:02 2010 KojiSummaryCOCPhase map interferometer calibration for the data on Oct 8th, 2010 Summary:
Calibration
of the phase map interferometer was calculated
for the data on Oct 8th, 2010.
 calibration.pdf 
  3686   Sun Oct 10 18:28:25 2010 kiwamuSummarySUSITMX OSEM offsetsBecause of the in-vac work on Oct. 4th
(see this
entry) , ITMX's OSEM offsets were
 OSEM.png 
  3689   Mon Oct 11 16:09:10 2010 yutaSummarySUScurrent OSEM outputsBackground:
 The output range of the OSEM
is 0-2V.
  
  3694   Mon Oct 11 23:55:25 2010 Joonho LeeSummaryElectronicsCCD cables for output signalToday
I checked all the CCD cables which is connected
output channels of the VIDEOMUX.
  
  3738   Mon Oct 18 18:33:46 2010 KojiSummaryCOCSummary of the main mirrors & their phasemap measurementI have made a summary web page for the
40m upgrade optics.
https://nodus.ligo.caltech.edu:30889/40m_phasemap/
  
  3739   Mon Oct 18 22:11:32 2010 Joonho LeeSummaryElectronicsCCD cables for input signalToday
I checked all the CCD cables which is connected
input channels of the VIDEOMUX.
  
  3749   Thu Oct 21 01:11:48 2010 ranaSummaryComputerselog change and rossa texI deleted
a bunch of categories from the elogd.cfg
  
  3753   Thu Oct 21 13:05:19 2010 KojiSummaryComputerselog change and rossa texThis is cool    
  3765   Fri Oct 22 19:53:27 2010 yutaSummaryCDSconversion failure in digital filters(Rana, Joe, Yuta)

We now understand that we never succeeded
  
  3770   Sat Oct 23 14:42:01 2010 yutaSummaryCDSdamped MC suspensionsAfter replacing filters, MC suspensions
damped  last night.
Further measurement next time.
 dam.png 
  3771   Sun Oct 24 18:06:35 2010 kiwamuSummaryLockingsetup for green beat   green_beat_note.png 
  3774   Mon Oct 25 02:14:38 2010 KojiSummaryLockingsetup for green beat- What is the actual photocurrent for the
beam1 and beam2? We don't care how much power
do you have before the BS, but care how much
  
  3815   Thu Oct 28 23:17:15 2010 yutaSummaryCDS[EMERGENCY] accidentally deleted daqdRana showed me that if c1sus machine runs
c1mcs stuff(and c1x02 stuff) only, we can
use dataviewer without crashing fb.
  
  3816   Fri Oct 29 01:18:03 2010 KojiSummarySUSPRM standoff glued[Suresh Koji]
The standoff glued. The incandescent
lamp set for curing the epoxy.
 IMG_3674.jpg 
  3821   Fri Oct 29 11:25:15 2010 josephb, yutaSummaryCDS[EMERGENCY] accidentally deleted daqdProblem:
Missing daqd file, i.e. the framebuilder
executable.
  
  3828   Fri Oct 29 18:37:33 2010 yutaSummaryCDSdaqd and current CDS statusBackground:
  Before Joe left(~ 1 hour ago),
fb was working for a while. But after he
 06-25-2009.NN_24ThreatLevel.GJH2L69BK.1.jpg 
  3829   Sat Oct 30 05:27:53 2010 yutaSummaryCDSCDS time delay measurementMotivation:
  We want to know the time delay
of CDS in the IOP scheme.
 delaysetup.pngCDSdelay.png 
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