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  40m Log, Page 264 of 341  Not logged in ELOG logo
ID Date Authorup Type Category Subject Text Attachments
  5788   Wed Nov 2 19:32:20 2011 kiwamuUpdateLSCPOP22/110 installed[Steve / Kiwamu]
 The
POP22/110 RFPD has been installed. It is
  
  5794   Thu Nov 3 14:25:52 2011 kiwamuUpdateLSCPDA10A as POP22/110 : too small signalIt
turned out that the signal was too small
with PDA10A to detect the 22 and 110 MHz
  
  5796   Thu Nov 3 16:31:47 2011 kiwamuUpdateLSCPDA10CF as POP22/110 : betterThe
POP22/110 RFPD has been replaced by PDA10CF.
As a result the 22 and 110 MHz signals became
  
  5801   Thu Nov 3 18:41:36 2011 kiwamuUpdateLSCPOX11 demod board : haven't been modified yetI
pulled out the POX11 demod board and found
the power splitter on the board hadn't been
  
  5802   Thu Nov 3 19:58:18 2011 kiwamuUpdateLSCPOX11 demod board : modification doneThe modification
on the POX11 demod board has been successfully
 POX11demod.png 
  5806   Fri Nov 4 05:24:56 2011 kiwamuUpdateLSCoffset introcuded in MC and IFO-configure script modified[Offsets in MC]
 I have introduce an offset
in MC2 PIT because the PZT1 again started
  
  5817   Sat Nov 5 00:04:23 2011 kiwamuUpdateASCASS scripts goneDid
somebody delete all the scripts in /opt/rtcds/caltech/c1/scripts/ASS
  
  5820   Sat Nov 5 04:30:21 2011 kiwamuUpdateGreen LockingRe:Passive summing box modificationsI think you also should check the PZT's
capacitance of the 700mW LightWave because
2.36 nF is the one for the 1W Innolight laser.
  
  5838   Mon Nov 7 22:20:18 2011 kiwamuUpdateGreen LockingRe:YARM length fluctuationA nice plot !
Can you put another y-axis on the
right hand side of the same plot  in
  
  5849   Wed Nov 9 14:49:07 2011 kiwamuSummaryLSCCharacterization of the Power Recycled MichelsonEDIT
by KI:
 contour_loss.pngcontour_MM.png 
  5850   Wed Nov 9 16:03:21 2011 kiwamuSummaryGeneralGoal this weekGoal of this week : 
ALS on the Y arm
  
  5852   Wed Nov 9 16:49:17 2011 kiwamuUpdateGreen LockingY end laser temperature with slow input connectedIndeed it is strange. I took a quick look
at it.
In
  
  5860   Thu Nov 10 05:54:23 2011 kiwamuUpdateGreen LockingBeat-note detected : PSL vs Y arm[Katrin / Kiwamu]
The beat-note
 DSC_3606_small.jpg 
  5875   Fri Nov 11 14:55:47 2011 kiwamuSummaryLSCCharacterization of the Power Recycled Michelson : take 2

    

       
            
 rec_gain.pngrefl.pngpbu.pngMM.pngloss.png 
  5885   Mon Nov 14 11:32:02 2011 kiwamuSummaryGeneralGoal this weekGoal of this week : Noise
budgeting on the Y arm ALS
  
  5888   Mon Nov 14 17:01:14 2011 kiwamuUpdateGreen LockingALS feedback on MC2Leaving a note on the ALS feedback before
I forget:
The
  
  5890   Mon Nov 14 22:56:31 2011 kiwamuUpdateGreen LockingY end PDH lock : UGF at 17 kHz[Tomotada / Kiwamu]
 
The open loop transfer function of the Y
 YendOLTF.png 
  5894   Tue Nov 15 12:25:38 2011 kiwamuUpdateGreen LockingY arm ALS : beat-note free run fluctuationLocking activity last night :
 
The free run beat-note in 532 nm has been
 noise_budget.png 
  5895   Tue Nov 15 15:16:04 2011 kiwamuUpdateCDSdataviewer doesn't runDataviewer is not able to access to fb
somehow.
I restarted daqd on fb but it didn't
 blank.png 
  5914   Wed Nov 16 17:29:46 2011 kiwamuUpdateGreen LockingSome updates on the Y end green PDH
    

       
            
 Yarm_fluctuation.png 
  5920   Thu Nov 17 03:46:52 2011 kiwamuUpdateGreen LockingPSL doubling had been diabledI
found that the temperature controller of
the PSL doubling oven had been disabled.
  
  5929   Thu Nov 17 17:21:22 2011 kiwamuUpdateGreen LockingY end green PDH servo : it's okay

    

       
            
 servoTF.pngservofilter.pngerr_suppression.png 
  5930   Thu Nov 17 18:20:26 2011 kiwamuUpdateGreen LockingY arm ALS : 1st trial of noise budgetThe
noise budget on the Y arm ALS has begun.
 Yarm_ALS_2011Nov16.png 
  5942   Fri Nov 18 02:50:10 2011 kiwamuUpdateIOORF generation box : power switch malfunction[Suresh / Kiwamu]
 The
power switch button of the RF generation
 broken_power_switch.png 
  5947   Fri Nov 18 15:35:18 2011 kiwamuUpdateIOORF generation box : power switch malfunctionJenne
gave me a spare LED power switch
  
  5963   Sun Nov 20 14:48:55 2011 kiwamuUpdateGeneralrecovery from the power shutdownRecovery
from the power shutdown
 - Turned on the raid disk of
  
  5964   Sun Nov 20 15:11:09 2011 kiwamuUpdateIOORFAM monitoring testDO NOT CHANGE
THE IFO ALIGNMENT UNTIL TOMORROW MORNING
  
  5968   Mon Nov 21 14:35:28 2011 kiwamuUpdateIOORFAM monitoring test   REFL_RFAM.png 
  5970   Mon Nov 21 16:08:04 2011 kiwamuUpdateGreen Locking2nd trial of Y arm ALS noise budget : broad band noise gone

    

       
            
 Yarm_ALS_2011Nov19.png 
  5974   Tue Nov 22 00:19:10 2011 kiwamuUpdateSUSc1auxey hadware rebootedI found that the slow machine c1auxey,
which controls and monitoring the ETMY suspension
  
  5975   Tue Nov 22 04:02:47 2011 kiwamuUpdateIOOchanged MC alignmentI
have changed the MC2_YAW DC bias because
the PZT1_YAW was railing.
  
  5978   Tue Nov 22 15:18:18 2011 kiwamuUpdateGreen Lockingbroad band noise depends on the gain of Y green PDH. and comaprator broken

    

       
            
  
  5980   Tue Nov 22 18:42:10 2011 kiwamuSummaryGreen LockingSome issues on the Y end green PDH locking[Rana / Kiwamu]
 As
a part of the ALS noise budgeting we took
  
  5982   Tue Nov 22 23:06:13 2011 kiwamuUpdateSUSMC watchdogs[Rana / Mirko / Kiwamu]
 
  
  5993   Thu Nov 24 01:28:09 2011 kiwamuUpdateGeneral1X8 sorensen came back

    

       
            
  
  6002   Thu Nov 24 15:27:15 2011 kiwamuUpdateCDSc1iscey hardware rebootedThe
c1iscey machine crashed around 1:00 AM last
night and I did a hard-ware reboot
  
  6018   Sat Nov 26 19:07:40 2011 kiwamuSummaryGreen LockingAM trnasfer function of the Y end laser with doublin crystal

    

       
            
 AMTF_lightwave.pngAMTF_cailbrated.bod.zip 
  6020   Mon Nov 28 06:53:30 2011 kiwamuUpdateCDSc1sus shutdownI have restarted the c1sus machine around
9:00 PM yesterday and then shut it down around
4:00 AM this morning after a little bit of
  
  6024   Mon Nov 28 15:00:20 2011 kiwamuUpdateGreen LockingY arm ALS engaged
    

       
            
  
  6026   Mon Nov 28 16:46:55 2011 kiwamuUpdateCDSc1sus is now upI have restarted the c1sus machine and
burt-restored c1sus and c1mcs to the day
before Thank giving, namely 23rd of November.
  
  6027   Mon Nov 28 16:51:57 2011 kiwamuUpdateLSCmodulation frequency resetI reset the modulation frequency to 11065910
Hz (#5530).
It had been at 11065399 Hz probably since
  
  6028   Mon Nov 28 18:19:53 2011 kiwamuUpdateIOOStochmon seems workingHere is a 48 hours trend of the RFAM
monitor (a.k.a StochMon):
 RFAM_48hours.png 
  6033   Tue Nov 29 04:47:49 2011 kiwamuUpdateCDSc1sus shut down againI have shut down the c1sus machine at 3:30
AM.
  
  6042   Tue Nov 29 18:54:29 2011 kiwamuUpdateCDSc1sus machine up[Zach / Kiwamu]
 Woke up the c1sus machine in
order to lock PSL to MC so that we can observe
  
  6044   Tue Nov 29 22:10:18 2011 kiwamuUpdateRF SystemRFAM fluctuation reduced

    

       
            
 RFAM_withEOMheater_edit.png 
  6050   Wed Nov 30 03:01:55 2011 kiwamuUpdateRF SystemRFAM fluctuation reducedOkay I have turned ON the temperature control
at 2:40 AM and will leave it ON for a while.

  
  6060   Thu Dec 1 17:33:18 2011 kiwamuUpdateSUSwatchdogs fixedThe watchdogs'
issue has been solved and they are now working
  
  6071   Mon Dec 5 17:44:41 2011 kiwamuUpdateGeneralmy plan tonightI am going
to try handing off the ALS servo to the IR
  
  6072   Mon Dec 5 19:21:55 2011 kiwamuUpdateLSCcoarse beat note signal : ADC limited above 30 HzThe
signal observed by the coarse frequency discriminator
was actually dominated by the ADC noise above
 Yarm_ALS_coarse.png 
  6074   Tue Dec 6 00:26:00 2011 kiwamuUpdateLSCALS became robust : UGF = 100 HzEventually
the instability in the Y end PDH servo turned
out to be some kind of an alignment issue.
  
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