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  40m Log, Page 338 of 344  Not logged in ELOG logo
ID Date Authorup Type Category Subject Text Attachments
  3769   Sat Oct 23 03:36:05 2010 yutaUpdateCDSfixed filters for C1SUS, C1RMS, C1MCS(Joe, Yuta)

Summary:
  
  3770   Sat Oct 23 14:42:01 2010 yutaSummaryCDSdamped MC suspensionsAfter replacing filters, MC suspensions
damped  last night.
Further measurement next time.
 dam.png 
  3785   Tue Oct 26 12:45:20 2010 yutaHowToCDSmaking a new master file for medm screens(Joe, Yuta)

 In elog
  
  3787   Tue Oct 26 16:02:55 2010 yutaHowToCDSthings to do after making a new Simulink model(Joe,Yuta)

Things to do after making a new Simulink
  
  3788   Tue Oct 26 17:31:17 2010 yutaUpdateCDSfixed OPLEV stuff and MCL filters(Joe, Yuta)

Background:
 optlevMC2.png 
  3805   Thu Oct 28 03:39:58 2010 yutaUpdateIOOgot very stable MC locking(Rana, Suresh, Jenne, Kiwamu, Kevin,
Yuta)
 C1IOO_MC_SERVO20101028.pngMCrocks!.png 
  3807   Thu Oct 28 04:28:50 2010 yutaUpdateGreen Lockingchecked frequency counter SR620(Kiwamu, Yuta)

Background:
  
  3813   Thu Oct 28 20:08:26 2010 yutaUpdateGreen Lockingrevised RF amp cascadingBackground:
  Yesterday, I said I will use
ZHL-32A for amplifying beat note signal,
  
  3814   Thu Oct 28 21:20:11 2010 yutaUpdateCDSFlaky fb, tried DAQ re-install, but no helpSummary:
  Unfortunately, fb is flakier
than normal. 
  
  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.
  
  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 
  3838   Mon Nov 1 15:47:15 2010 yutaSummaryCDSCDS time delay measurementBackground:
  I measured CDS time delay last
week, but because of my lack of understanding
 downupsampling.pngCDSdelay2.png 
  3841   Mon Nov 1 19:32:08 2010 yutaSummaryCDSfb crashed? during c1ioo and c1mcs connection at ASCFrame builder
died again!!
  
  3842   Mon Nov 1 23:31:05 2010 yutaUpdateCDSchecked input hardware filter in single frequencyBackground:
  For input filter, we have analog
whitening filter and also digital whitening
  
  3849   Wed Nov 3 02:23:11 2010 yutaSummaryCDSchecking whitening filter boardSummary:
  Last night, I found that some
of the input channels have wrong hardware
 MC3SEN.png 
  3850   Wed Nov 3 02:37:39 2010 yutaSummaryGreen Lockingcoarse locked green beat frequency(Kiwamu, Yuta)

 Screenshot_LowFreqLock.png 
  3857   Wed Nov 3 21:19:40 2010 yutaUpdateCDSput LOCKIN to c1ioo model and checked(Joe, Yuta)

Summary:
 Screenshot_C1IOO_LOCKIN.png 
  3863   Thu Nov 4 17:53:29 2010 yutaUpdateCDSprimitive python script for A2L measurementSummary:
 
I wrote
 a2ltest.png 
  3868   Fri Nov 5 14:06:19 2010 yutaUpdateIOOtried to align MC by A2L measurement(Suresh, Kiwamu, Yuta)

Summary:
 A2LmeasurementFigures.png 
  3876   Sat Nov 6 07:26:54 2010 yutaSummaryIOOreduced common mode displacement of the beam through MC1 to MC3(Koji, Suresh, Yuta)

Summary:
 A2LMCalign.png 
  3883   Tue Nov 9 05:40:12 2010 yutaSummaryIOOMC aligning going on(Suresh, Yuta)

Background:
 MCalignNov9.png 
  3884   Wed Nov 10 02:51:35 2010 yutaSummaryIOOlimitation of current MC aligning(Suresh, Yuta)

Summary:
 MCalignNov9.png 
  3886   Wed Nov 10 12:21:18 2010 yutaSummaryIOOlimitation of current MC aligning1. We didn't measure the aperture size
last night. We have to check that.
  
  3891   Thu Nov 11 04:32:53 2010 yutaSummaryCDSfound poor contact of DAC cable, previous A2L results were wrong(Koji, Jenne, Yuta)

  
  3892   Thu Nov 11 05:56:04 2010 yutaSummaryIOOsetting up temporary oplev for coil balancing of MCs(Suresh, Yuta)

Background:
 MC2coils.png 
  3905   Fri Nov 12 06:10:24 2010 yutaUpdateIOOMC aligned (without coil balancing)Background:
  Last night, we found that one
of DAC channels are poorly connected, so
 MCalignCALIB.png 
  3912   Sat Nov 13 15:53:05 2010 yutaUpdateCDSdiagonalization of MC input matrixMotivation:
  MC is aligned from the A2L
measurement, but to do the beam centering
 MCspectraNov09.pngMCspectraNov13.pngMC1spetra_wrongmatrix.png 
  3929   Tue Nov 16 03:33:22 2010 yutaUpdateIOOaligned Faraday, beam reached SM just before PRM(Koji, Yuta)

 MCalignNov16.png 
  3937   Wed Nov 17 02:53:41 2010 yutaUpdateIOOplaced new PRM to BS table(Kiwamu, Yuta)

Background:
  
  3941   Wed Nov 17 20:44:59 2010 yutaSummaryCDSno QPD channels on c1sus machine today(Joe, Suresh, Yuta)

  
  3943   Thu Nov 18 00:40:31 2010 yutaUpdateIOOPRM reflected beam reached AP table(Kiwamu, Yuta)

Summary:
  
  3948   Thu Nov 18 16:32:21 2010 yutaSummaryCDScurrent damping status for all optics c1sus handlesSummary:
   I set Q-values for each
ringdown of PRM, BS, ITMX, ITMY, MC1, MC2,
 c1susdampings.png 
  3957   Fri Nov 19 17:12:22 2010 yutaUpdateCDSETMX damped, but with weird TO_COIL matrixBackground:
  c1iscex machine is currently
being setup and RT model c1scx is running.
 ETMXdamping.png 
  3959   Sat Nov 20 01:58:56 2010 yutaHowToCDSeditting RT models and MEDM screens(Suresh, Yuta)

If you come up with a good idea and
  
  3960   Sat Nov 20 02:25:30 2010 yutaUpdateCDS2 LOCKINs for suspension models(Suresh, Koji, Yuta)

Background:
 LockinRoll.png 
  3961   Sat Nov 20 03:37:11 2010 yutaSummaryCDSCDS time delay measurement - the ripple(Koji, Joe, Yuta)

Motivation:
 c1tst16Kdelay.png 
  6654   Mon May 21 21:27:39 2012 yutaUpdateCDSMEDM suspension screens using macroBackground:
 We need more organized MEDM
screens. Let's use macro.
  
  6663   Tue May 22 20:46:38 2012 yutaUpdateCDSMEDM suspension screens using macroI fixed the problem Jamie pointed out in
elog #6657
and #6659.
  
  6677   Thu May 24 16:13:05 2012 yutaUpdateComputersASS scripts on new ubuntu machines[Den, Yuta]

Background:
  
  6709   Tue May 29 21:05:30 2012 yutaUpdateIOOPMC, MC alignment are shit

    

       
            
  
  6713   Wed May 30 01:35:15 2012 yutaUpdateGreen Lockingaligned Y arm green beam[Jenne, Yuta]
We aligned the Y arm for IR (C1:LSC-TRY_OUT
is now ~ 0.9), and aligned the green beam
  
  6715   Wed May 30 15:51:22 2012 yutaUpdateIOOMC beam spot oscillation[Koji, Suresh, Jenne, Yuta]
Background:
  We noticed that the beam spots
 specMC3_onoff_localdamping.pdf 
  6718   Wed May 30 19:27:38 2012 yutaUpdateIOOMC beam spot oscillation[Koji, Yuta]  
We found that C1:SUS-MC{1,2,3}_TO_COIL_3_4_GAIN
  
  6724   Thu May 31 01:27:16 2012 yutaUpdateGreen LockingPSL and Y arm green beams aligned[Jenne, Yuta]
We aligned the PSL green optics so
that the PSL green beam and Y arm green beam
  
  6725   Thu May 31 01:36:17 2012 yutaUpdateGreen LockingGREEN_TRX/GREEN_TRY PDsI did the cabling for monitoring DC transmission
of the green beam from the end table.
The two PDs are called GREEN TRX and
  
  6726   Thu May 31 02:27:24 2012 yutaUpdateIOOscript for reliefing MC WFSI wrote a simple script for reliefing MC
WFS servo. The script is located at /opt/rtcds/caltech/c1/scripts/MC/reliefMCWFS.
  
  6727   Thu May 31 04:03:17 2012 yutaUpdateIOOscript for MC beam spot measurementI wrote a wrapping script for measuring
MC beam spot. We had to run several scripts
for the measurement (see elog #6688),
  
  6731   Thu May 31 16:19:07 2012 yutaUpdateGreen Lockingtemperature setting for PSL doubling crystalI fixed the temperature control of the
oven for the PSL doubling crystal.
The PID settings were not good, and
  
  6746   Sat Jun 2 03:19:37 2012 yutaUpdateGreen LockingY green beat note found? - too smallSummary:
  I tried to find Y arm green
beat in order to do the mode scan.
 CIMG1437.JPG 
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