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ID Date Author Type Category Subject Text Attachments
  4807   Fri Jun 10 20:23:56 2011 Larisa ThorneUpdateElectronicsSeismometer Box Update/graphs (continuation of this)
 
The noise graphs relating total noise
 SeisNoiseGraphs.jpg 
  4806   Fri Jun 10 18:49:40 2011 kiwamuUpdateIOOIntensity Noise after the MCLast
night the relative intensity noise (RIN)
of the beam after MC was measured.
 RIN_afterMC.png 
  4805   Fri Jun 10 14:50:37 2011 KojiUpdateLSCNew LSC code installed[Koji Jamie]
The new c1lsc code has been installed.
The LSC screens have also been updated (except
  
  4804   Fri Jun 10 12:04:57 2011 JenneUpdateRF SystemBad RF connections!!I am in the process of calibrating AS55's
shot noise, and I noticed that the AS55 PD
input to the demod board was only finger-tight. 
  
  4803   Fri Jun 10 12:02:10 2011 ranaUpdateCDSSecond trends only go back 12 days


   
        
            
  
  4802   Thu Jun 9 20:10:38 2011 kiwamuUpdateSUSETMY whitening filter : all offI checked
the state of the whitening filters for the
 ETMY_WF2.png 
  4801   Thu Jun 9 18:25:22 2011 kiwamuHowToCDSlook back a channel which doesn' exist any moreFor
some purposes I looked back the data of some
channels which don't exist any more.
  
  4800   Thu Jun 9 16:18:03 2011 josephbUpdateCDSSecond trends only go back 12 daysWhile
answering a quick question by Kiwamu, I noticed
we only had second trends going back to 99050000
  
  4799   Thu Jun 9 12:21:07 2011 kiwamuUpdatePSLRe : PMC needs helpNulling
the slow actuation offset fixed the issue.
 Untitled.png 
  4798   Thu Jun 9 10:38:30 2011 steveUpdatePSLPMC needs helpThe PMC is losing power.  pmcnothp.jpg 
  4797   Wed Jun 8 23:17:25 2011 kiwamuUpdateLSCDRMI output matrix diagonalizationApproximately
two weeks ago I diagonalized the LSC output
matrix for the DRMI locking.
 Screen_shot_2011-06-08_at_23.21.28.png 
  4796   Wed Jun 8 22:48:09 2011 ranaUpdateCamerasITM camera lenses changedI focused these lenses so that we could
get a clean image of the mirrors and the
OSEMs.
  
  4795   Wed Jun 8 16:41:48 2011 valeraUpdateASSX and Y arm dither alignment status   BeamPositionIndicators.png 
  4794   Tue Jun 7 16:11:09 2011 steveUpdateCamerasITM camera lenses changedComputar  75-12.5 zooms were installed
for closer look at the resonant spots. 
Their alignment and focus needs more loving
 P1070865.JPGP1070860.JPG 
  4793   Tue Jun 7 11:39:27 2011 JamieUpdateSUSNo binary output module in ETMY
    

       
            
  
  4792   Mon Jun 6 23:56:16 2011 rana, valeraConfigurationSUSETMX/ETMY OSEM whitening We measured the OSEM PD whitening
transfer function of the ETMX OSEM UL whitening
stage (
  
  4791   Mon Jun 6 22:41:22 2011 ranaUpdateSUSSwitching problem in SUS modelsSome
weeks ago, Joe, Jamie, and I reworked the
ETMY controls.
 a.pdf 
  4790   Mon Jun 6 18:29:01 2011 Jamie, JoeUpdateCDSCOMPLETE FRONT-END REBUILD (WITH PROBLEMS (fixed))Today Joe and I undertook a FULL rebuild
of all front end systems with the head of
the 2.1 branch of the RCG.  Here is
  
  4789   Mon Jun 6 17:28:31 2011 steveUpdateComputersstill, no PEM channels

    

       
            
 P1070846.JPG 
  4788   Mon Jun 6 17:22:09 2011 valeraConfigurationLSCClipping in the X arm 1064 um trans pathI
changed optics in the ETMX transmon path
to remove clipping (which made a false QPD
 XarmTransMon.pdf 
  4787   Mon Jun 6 16:44:34 2011 KojiUpdateElectronicsPOY11 testedThe full characterization of POY11 is found
in the PDF.
Resonance at 11.03MHz
 POY11_test.pdf 
  4786   Mon Jun 6 02:09:39 2011 ranaUpdateElectronicsPOY11 Rework Nearly CompleteI've  777.png 
  4785   Sat Jun 4 15:26:04 2011 Larisa ThorneUpdateElectronicsSeismometer Box Update (continuation of this)
 
Here are the transfer function and
 SeisBoxLISO_transfer.pdfSeisBoxLISO_noise.pdf 
  4784   Fri Jun 3 18:12:03 2011 steveUpdateComputersno PEM channelsAA filter box was removed and modified
at 1Y7 today. The -5V power supply was current
limited when I plugged it back in. It was
  
  4783   Fri Jun 3 14:27:32 2011 KojiUpdateElectronicsPOP55 test resultsThe full characterization of POP55 is found
in the PDF.
Resonance at 54.49MHz
 POP55_test.pdf 
  4782   Thu Jun 2 23:10:10 2011 KojiUpdateElectronicsREFL11 test results (Re: REFL11 fixed)The full characterization of REFL11 is
found in the PDF.
Resonance at 11.062MHz
 REFL11_test.pdf 
  4781   Thu Jun 2 16:31:41 2011 JamieUpdateCDSaquired SUS channel name suffixes changed from _DAQ to _DQCDS changed the suffix for all aquired
channel names from _DAQ to _DQ.  When
we rebuilt the sus models, described in the
  
  4780   Thu Jun 2 16:23:42 2011 JamieUpdateSUSSUS control models updated to use new sus_single_control library partA new library part was made for the single
suspension controller (it was originally
made from the c1scx controller), using the
  
  4779   Thu Jun 2 10:19:37 2011 Alex IvanovSummaryDAQinstalled new daqd (frame builder) program on fb (target/fb/daqd)I hope that new daqd code will fix the
problem with non-aligned at 16 seconds frame
file GPS times.
  
  4778   Wed Jun 1 21:56:43 2011 KojiUpdateGeneralaLIGO BBPD / Green PD final resultHere is the conclusive result for the
circuit configuration for aLIGO BBPD and
40m Green PD. 
 PD_response.pdflinearity_GALI_6.pdf 
  4777   Wed Jun 1 13:33:22 2011 koji, taraUpdateElectronicsTTFSS #7 We replaced GE81 by PZT2907A (PNP transistor)
in TTFSS #7, it's working fine.
  Last time I broke Q4 transistor,
 q4.png 
  4776   Wed Jun 1 11:31:50 2011 josephbUpdateCDSMC1 LR digital reading close to zero, readback ~0.7 voltsThere
appears to be a bad cable connection somewhere
on the LR sensor path for the MC1 optic.
  
  4775   Tue May 31 17:30:42 2011 steveUpdateSUSETMY damping restoredETMY's watch dogs were found tripped. They
were restored.
  
  4774   Tue May 31 16:07:57 2011 Larisa ThorneConfigurationElectronicsSeismometer Box Update (Continuation of this)
 
I plugged the circuit into the LISO
 SeisBoxLISOplot1.pdfSeisBoxLISOplot2.pdfSTS2diagram_original.pdf 
  4773   Tue May 31 15:45:37 2011 JamieUpdateCDSc1iscey IOchassis powered off for some reason. repowered.We found that both of the c1iscey models
(c1x05 and c1scy) were unresponsive, and
weren't coming back up even after reboot. 
  
  4772   Tue May 31 14:29:00 2011 jzweizigUpdateCDSframesThere seems to be something strange going
on with the 40m frame builder.
Specifically, there is a gap in the
  
  4771   Tue May 31 11:34:13 2011 steveSummarySAFETYsafety glasses checked  1064 nm transmison were measured
of 40m safety glasses as shown . Their performance
did not degrade. They are as good as their
 P1070823.JPG 
  4770   Tue May 31 11:26:29 2011 josephbUpdateCDSCDS Maintenance1) Checked in the changes I had
made to the c1mcp.mdl model just before leaving
for Elba.
  
  4769   Mon May 30 23:14:27 2011 valeraUpdateASCY arm initial alignmentI closed all 8 dither loops for the Y arm
initial alignment: 2x2 centering servo (this
worked before) and 2x2 input beam servo for
  
  4768   Fri May 27 17:52:53 2011 steveUpdateLSCLSC rack cables strain relieved & labeledLSC rack 1Y2 cables are strain relieved
and labeled. Spare and/or obsolete cables
are laid out on the top of the beam tube
  
  4767   Thu May 26 17:10:21 2011 JamieConfigurationLSCNew digital lockin added to LSC model/screen


   
        
            
  
  4766   Wed May 25 20:12:55 2011 JamieConfigurationLSCNew digital lockin added to LSC model/screen


   
        
            
 lsc-lockin-adl.png 
  4765   Wed May 25 19:19:11 2011 JamieConfigurationCDS!!!CHECK IN YOUR MODELS!!!!!!CHECK
IN MODEL CHANGES!!!
Today
I found three models that were modified,
  
  4764   Wed May 25 19:03:59 2011 JamieConfigurationCDSUpdate rtcds checkout of cds_user_apps with new top-level directory names.The top-level subsystem subdirectories
in the cds_user_apps source repository were
renamed today to be all lower case. 
  
  4763   Mon May 23 18:16:42 2011 KojiConfigurationLSCPOY55 installedThe DC Transimpedance of POP55 was increased
from 50 Ohm to 10010 Ohm. There is the offset
of 46mV. This should be cancelled in the
  
  4762   Mon May 23 18:10:41 2011 kiwamuUpdateLSCf2p filters on PRM : not goodDuring
the DRMI trial I noticed that the f2p filters
on PRM is not quite effective
 f2p_PRM.png 
  4761   Mon May 23 14:28:23 2011 kiwamuConfigurationLSCPOY55 installedLast
Saturday the POY55 RFPD (see
this entry
 POY55.png 
  4760   Mon May 23 12:27:26 2011 kiwamuUpdateLSCDRMI trial : details(PRMI
locking with slightly misaligned SRM)
 First I tried locking PRC and
  
  4759   Mon May 23 00:36:51 2011 kiwamuUpdateLSCDRMI trial : sucessEventually the
D
  
  4758   Sat May 21 17:02:38 2011 KojiUpdateElectronicsAlberto's 11MHz was modified to POP55MHz- Resonant at 55MHz. The transimpedance
is 258Ohm. That is about half of REFL55 (don't
know why).
 POP55_schematic_110520_KA.pdfPOP55_transimpedance.pdf 
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