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ID Date Author Type Category Subject Text Attachments
  6819   Fri Jun 15 00:50:54 2012 yutaUpdateGreen Lockingscanned Y arm for 5FSRI scanned Y arm for 5FSR (below).
I could done this after I put a whitening
filter.
 YarmScan20120614_2.png 
  6818   Thu Jun 14 21:37:37 2012 yutaUpdateGreen Lockingsucceeded in 1FSR mode scan[Jenne, Yuta]

We couldn't scan the Y arm for 1FSR
 YarmScan20120614.png 
  6817   Thu Jun 14 04:53:39 2012 yutaSummaryGreen Lockingdesigning ALS loop for mode scan[[Requirement]]
 Arm cavity FWHM for IR is 
 ALSloop.pngALSopenloop.pngyarmlength.png 
  6816   Thu Jun 14 01:36:34 2012 yutaUpdateGreen Lockingcan't scan Y arm for 1FSR[Jenne, Koji, Yuta]

We tried to scan of the Y arm but
 BEATY_COARSE_LoopOnOff.png 
  6815   Wed Jun 13 17:39:13 2012 yutaUpdateGreen Lockingcalibrating the beatbox[Jenne, Yuta]

We put 0 dBm sine wave to the RF input
 ALS-BEATY_COARSE_I_IN1_DQ.pngALS-BEATY_COARSE_Q_IN1_DQ.pngALS-BEATY_FINE_I_IN1_DQ.pngALS-BEATY_FINE_Q_IN1_DQ.png 
  6814   Wed Jun 13 11:19:05 2012 steveUpdateSUSIDC receptacles clampedThe MC_ IDC 64 pin cables from sat. amplifiers
to junction-interface-board towards 
whitening - dewhitening at the back of rack
 IMG_1341.JPG 
  6813   Wed Jun 13 11:10:56 2012 ranaUpdateGreen Lockingmy first modescan (sort of)You can easily calculate whether or not
the coarse readout will work by thinking
about the scan resolution you need given
  
  6812   Wed Jun 13 03:03:38 2012 yutaUpdateGreen Lockingmy first modescan (sort of)Linear range df of the delay line technique
is about df ~ c/(2D). So, the linear range
for the fine signal(delay line length D=30m)
  
  6811   Wed Jun 13 02:24:02 2012 ranaUpdateGreen Lockingmy first modescan (sort of) That sounds goofy.
With the delay line technique,
you can get a linear signal over 50 MHz with
  
  6810   Wed Jun 13 02:11:59 2012 yutaUpdateGreen Lockingmy first modescan (sort of)I stabilized Y arm length by using only
I phase coarse signal from the beat(C1:ALS-BEATY_COARSE_I_ERR).
I sweeped the arm length by injecting
 modescan20120612_1.png 
  6809   Tue Jun 12 23:18:18 2012 yutaUpdateGreen LockingI-Q signals for the beat[Mengyao, Yuta]

 FINEIQplot20120612.pngCOARSEIQplot20120612.pngbeatysetup20120612.png 
  6808   Tue Jun 12 20:35:46 2012 yutaUpdateGreen Lockingc1gcv recompiled[Jamie, Yuta]

We recompiled c1gcv because the order
 c1gcv20120612-2.png 
  6807   Tue Jun 12 17:46:09 2012 JenneUpdateComputersrtcds: command found

    

       
            
  
  6806   Tue Jun 12 17:29:28 2012 DenUpdateCDSdq channelsAll PEM and IOO DQ channels disappeared.
These channels were commented in C1???.ini
files though I've uncommented them a few
  
  6805   Tue Jun 12 17:04:55 2012 steveUpdateSUSPRM oplevs servo is still bad


   
        
            
 PRMolvstillosc.png 
  6804   Tue Jun 12 16:33:32 2012 steveUpdateSUSPRM oplevs servo ON for confirmation


   
        
            
  
  6803   Tue Jun 12 13:49:32 2012 JamieConfigurationComputer Scripts / ProgramstconvertA nicer, better maintained version of tconvert
is now supplied by the lalapps package. 
It's called lalapps_tconvert. 
  
  6802   Tue Jun 12 11:54:50 2012 JenneUpdateGreen Lockingc1gcv recompiledYuta added channels so we can get the Q
phase of all the beat PDs to the c1gcv model. 
I showed him how to recompile/install/start.
 c1gcv20120612.png 
  6801   Tue Jun 12 11:25:05 2012 JamieUpdateComputersrtcds: command not found

    

       
            
  
  6800   Tue Jun 12 02:09:43 2012 JenneUpdateComputersmini boot fest

    

       
            
  
  6799   Tue Jun 12 02:07:42 2012 JenneUpdateSUSPRM oplevs left offYuta claims he fixed the PRM oplev by centering
it the other day, but no one has left it
on and watched it for a long while, to make
  
  6798   Tue Jun 12 01:58:33 2012 yutaUpdateGreen Lockingaligned Y arm to Y end green[Jenne, Yuta]

We aligned Y arm to the Y end green
  
  6797   Tue Jun 12 01:03:18 2012 JenneUpdateComputersmini boot festAs usual, we noticed the frame builder
wasn't connecting happily with the rest of
the computers just as we were about to lock
 stock-vector-wine-icon-on-computer-keyboard-original-illustration-58731781.jpg 
  6796   Tue Jun 12 00:15:51 2012 JenneUpdateComputersrtcds: command not foundWe can't compile any changes to the LSC
or the GCV models since Jamie's new script
/ program isn't found.  I don't know
  
  6795   Mon Jun 11 22:51:11 2012 JenneUpdateComputerstdsavg not workingtdsavg isn't working:
controls@rossa:/opt/rtcds/caltech/c1/scripts/LSC
6$ tdsavg 10 C1:LSC-ASDC_IN1
  
  6794   Mon Jun 11 21:50:08 2012 yutaUpdateGreen Lockingbeatbox looks OKSummary:
  We need I-Q frequency deiscriminator
to control the arm length fine and continuously.
 CIMG1522.JPG 
  6793   Mon Jun 11 21:35:55 2012 JenneUpdateEnvironmentRattling in the HEPA

    

       
            
  
  6792   Mon Jun 11 16:08:58 2012 JenneUpdateEnvironmentRattling in the HEPAThere is an intermittent rattling sound
coming from the HEPA in the NE corner of
the PSL table (right above the PMC, all of
  
  6791   Mon Jun 11 09:37:16 2012 steveUpdateIOOPMC locked

    

       
            
 PMClocked.png 
  6790   Fri Jun 8 15:24:08 2012 steveUpdateVACRGA scan at day 276 and pressure plots

    

       
            
 40m71pdM276d.pngpd71m276d.pngpd71d276.png 
  6789   Fri Jun 8 15:08:27 2012 yutaUpdateGreen Lockingaligned/mode-matched Y green beat setupLaser temperature settings for Y arm green
work today are;
  
  6788   Thu Jun 7 18:46:13 2012 yutaUpdateSUSPRM oplev centeredPRM oplev beam was not hitting on the QPD
since Jun 1, so I centered it. I reverted
the oplev servo gains and now oplev servo
  
  6787   Thu Jun 7 17:49:09 2012 JamieUpdateCDSc1sus in weird state, running models but unresponsive otherwiseSomehow c1sus was in a very strange state. 
It was running models, but EPICS was slow
to respond.  We could not log into it
  
  6786   Thu Jun 7 13:25:37 2012 KojiUpdateSUSPRM is still oscillatingDone.
C1:SUS-PRM_OLPIT_GAIN 1.0 -> 0
C1:SUS-PRM_OLYAW_GAIN -0.7 -> 0
  
  6785   Thu Jun 7 13:18:42 2012 ranaUpdateSUSPRM is still oscillating  Set the PRM OL servo gains
to zero until someone can take care of this.
Turning off the buttons doesn't help anything
  
  6784   Thu Jun 7 12:49:50 2012 JamieUpdateComputerszita network configuredAdded zita to the martian host table, and
configured his network accordingly:

zita            A       192.168.113.217

  
  6783   Thu Jun 7 10:39:21 2012 JamieUpdateComputerspianosa dual monitor workingI decided to remove what I thought was
the problematic extra nVidia video card,
since there are already two DVI outputs build-in. 
  
  6782   Thu Jun 7 09:52:05 2012 steveUpdatePEMair cond maintenance

    

       
            
 PEM800d.png 
  6781   Thu Jun 7 08:12:20 2012 steveUpdateSUSPRM is still oscillating

    

       
            
 PRMoscil.png 
  6780   Thu Jun 7 07:27:27 2012 KojiUpdateGreen Lockingimproved Y arm green alignment - even moreYes.
The end PDH servo should be checked more
carefully.
 freq_noise_AUX.pdf 
  6779   Thu Jun 7 05:39:41 2012 yutaUpdateGreen Lockingcoarsely stabilized Y arm length with ALSI coarsely stabilized Y arm length to off
resonance point for IR using ALS.
Currently, ASL servo loop is unstable
 MyFirstALS20120607.png 
  6778   Thu Jun 7 03:37:26 2012 yutaUpdateCDSmx_stream restarted on c1lsc, c1ioo c1lsc and c1ioo computers had FB net statuses
all red. So, I restarted mx_stream on each
computer. 
  
  6777   Thu Jun 7 02:59:31 2012 yutaUpdateGreen LockingY green beat - found it!!Summary:
  I found the big green beat
note for the Y arm. The alignment of the
  
  6776   Thu Jun 7 02:25:27 2012 yutaUpdateGreen Lockingimproved Y arm green alignment - even more[Koji, Yuta]

Summary:
 beatygreenpower20120607.png 
  6775   Thu Jun 7 01:46:05 2012 yutaSummaryGreen LockingY green beat - found it!!I found the big big Y green beat. Details
will be posted later.
 CIMG1504.JPG 
  6774   Wed Jun 6 22:25:05 2012 JamieUpdateComputerszita now running ubuntu 10.04I'll finish the rest of the config to turn
it into a full-fledged workstation tomorrow.
  
  6773   Wed Jun 6 22:23:53 2012 JamieUpdateComputersFailed attempt to get pianosa to support dual monitorsI managed to get pianosa working again
with just a single monitor.  I'm done
trying to configure it for dual, though.
  
  6772   Wed Jun 6 22:04:19 2012 JamieUpdateComputersFailed attempt to get pianosa to support dual monitorsI've spent an inordinate amount of time
trying to figure out how to get pianosa to
support dual monitors.  It apparently
  
  6771   Wed Jun 6 21:11:45 2012 yutaUpdateGreen Lockingimproved Y arm green alignmentSummary:
  Y arm green transmission to
the PSL table improved from ~ 20 uW to 61
 beatygreenpower20120606.png 
  6770   Wed Jun 6 19:46:46 2012 SureshSummaryIOOTip-tilt assembly: current status and work remaining 
Recent History
The lower blades which I had given
 IMG_0685.JPGIMG_0687.JPGIMG_0687.JPG 
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