40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 337 of 341  Not logged in ELOG logo
ID Date Authordown Type Category Subject Text Attachments
  3083   Wed Jun 16 18:44:07 2010 AlbertoConfigurationComputers40MARS


   
        
            
  
  3084   Thu Jun 17 17:09:44 2010 AlbertoUpdateLSCShort Cavity Length AdjustmentsI calculated the phase shifts that the
sidebands would pick up in the arms in the
case we changed the arm length to 38.4m as
  
  3087   Fri Jun 18 15:07:26 2010 AlbertoUpdateLSCShort Cavity Length Adjustments


   
        
            
  
  3089   Fri Jun 18 22:12:29 2010 AlbertoUpdateIOOMode Profile after Mode Matching Telescope (Round 2)GJ   
  3170   Wed Jul 7 17:18:57 2010 AlbertoConfigurationElectronicsStochmon and LSC AM Stabilizer DecomissionedToday I disconnected and removed the
Stochmon box from the 1Y2 rack.
I
also removed the amplifiers that were sitting
  
  3227   Thu Jul 15 12:21:08 2010 AlbertoConfigurationLSCPRC and SRC length adjustementsLately I've been trying to calculate the
corrections to the recycling cavity lengths
that would compensate for the phase that
 8x 
  3229   Thu Jul 15 16:16:51 2010 AlbertoConfigurationLSCPRC and SRC length adjustements


   
        
            
  
  3239   Fri Jul 16 16:12:31 2010 AlbertoConfigurationComputersc1susvme1/2 rebootedToday I noticed that the FE SYNC counters
of c1susvme1/2 on the RFM network screen
were stuck at 16384. I tried to reboot the
  
  3265   Thu Jul 22 07:19:56 2010 AlbertoUpdateTreasureMonsters, LNVR, and Phase noise


   
        
            
  
  3269   Thu Jul 22 15:59:29 2010 AlbertoUpdatePSLPSL front end machine


   
        
            
  
  3270   Thu Jul 22 18:18:54 2010 AlbertoUpdatePSLProblem Solved


   
        
            
  
  3285   Sat Jul 24 14:03:19 2010 AlbertoUpdateElectronicsFSS Oscilaltor Phase Noise Measurement[Rana, Alberto]
Today we measured the phase noise
of the oscillator used for the FSS.
 FSScrystalPhaseNoiseHigherGain.pdf 
  3287   Sun Jul 25 18:47:23 2010 AlbertoUpdateSVNOptickle 40mUpgrade model updated to include short cavity length correctionsI uploaded an updated optickle model of
the upgrade to the SVN directory with the
optickle models (here).
  
  3326   Thu Jul 29 22:08:32 2010 AlbertoUpdateSUSMore optics installed on the BS table[Koji, Steve, Kiwamu, Alberto]
- This afternoon we installed
a few new optics on the BS table: GR_PBS,
  
  3429   Tue Aug 17 09:06:08 2010 AlbertoUpdateelogelog was downI just restarted the elog after I found
it down a few minutes ago.
  
  3450   Fri Aug 20 16:41:43 2010 AlbertoUpdateElectronicsFrequency Generation Box Assembly CompletedI finished assembling the frequency generation
unit for the upgrade. I tested it through
to check that the power levels are as expected
 7x 
  3499   Tue Aug 31 17:58:38 2010 AlbertoUpdateElectronicsFSS Frequency Generation Box - Phase NoiseA few weeks ago, on Jul 24, Rana and I
measured the phase noise of the FSS frequency
box (aka the 'Kalmus Box'). See elog entry
 2010-08-31_FSSPhaseNoise04modified.png 
  3501   Wed Sep 1 07:52:27 2010 AlbertoConfigurationElectronicsPMC board unplugged, turned on Sorensen switches on 1Y1 rackToday I put the FSS frequency box back
into the 1Y1 rack.
To power it on, I turned on the 24V
  
  3504   Wed Sep 1 08:40:28 2010 AlbertoConfigurationElectronicsPMC board unplugged, turned on Sorensen switches on 1Y1 rack


   
        
            
  
  3506   Wed Sep 1 11:34:39 2010 AlbertoUpdateElectronicsFSS Box Phase Noise from DAQI measured the phase noise of the LO output
of the FSS box from the DAQ. I'm attaching
the results.
 2010-09-01_FSSPhaseNoise.png2010-09-01_FSSphaseNoiseMeasurementSetup.png 
  3509   Wed Sep 1 16:29:28 2010 AlbertoUpdateElectronicsFSS Box Phase Noise from DAQ - Measurement setup modified


   
        
            
 2010-09-01_FSSPhaseNoise_DAQ_00-02_comparison.png2010-09-01_FSSPhaseNoise_DAQ_02.pngFSSphaseNoiseMeasurementSetup02.png 
  3520   Fri Sep 3 11:03:41 2010 AlbertoFrogsElectronicsCable cutting toolsI found this very interesting German maker
of cool cable cutting tools. It's called
Jokari.
  
  3526   Mon Sep 6 10:08:10 2010 AlbertoConfigurationComputersNetgear Network Switch fan broken.The Netgear Network Switch in the top shelf
of Nodus' rack has a broken fan. It is the
one interfaced to the Martian network.
  
  3529   Mon Sep 6 22:09:11 2010 AlbertoUpdateElectronicsRF Frequency Generation Box heat sink installed and testedLast week I noticed that the high power
amplifiers in the Frequency Generation Box
became hot after 2 hours of continuous operation
 DSC_2467.JPG2010-09-06_FreqBoxAmplifierTemperatureTrend.pngDSC_2433.JPG 
  3530   Tue Sep 7 08:56:00 2010 AlbertoUpdateElectronicsFrequency Generation Box Assembly - Phase Noise MeasurementsHere are the results of my phase noise
measurements on the 7 outputs of the Frequency
Generation Box. (BIN=95L applied by DTT).
 2010-09-03_FreqBoxPhaseNoise_AllOutputsComparison_smooth.png2010-09-03_FreqBoxPhaseNoise_AllOutputsComparison_smooth.pdf 
  3532   Tue Sep 7 13:31:49 2010 AlbertoUpdateElectronicsRF System - Frequency Distribution Box - Priority PlanWe need a distribution unit in the LSC
rack to: 1) collect the demod signals coming
from the Frequency Generation Box 2) adjust
 Visio-RFsystem_plan_distributiont.pngRFsystem_plant_distribution_priority.png 
  3535   Tue Sep 7 15:57:07 2010 AlbertoConfigurationComputersNodus connection not working. Fixed[Joe, Alberto]
The Nodus connection to the Martian
network stopped working after someone switched
  
  3537   Tue Sep 7 22:21:17 2010 AlbertoConfigurationComputerselog restarted    
  3552   Thu Sep 9 12:02:03 2010 AlbertoUpdateElectronicsFrequency Generation Box - Amplitude Noise MeasurementsI measured the amplitude noise of the source
outputs and the EOM outputs of the Frequency
Generation box.
 FreqBoxAmplitudeNoiseMeasurementSetup.pngFreqBoxAmplitudeNoise_BusbyBox_AllChannels.png 
  3555   Thu Sep 9 18:53:56 2010 AlbertoConfigurationElectronicsBusby Box, Rai's Box, SR554 in the RF cabinetI stored the Busby Box, the Rai's Box and
the SR554 preamp in the RF cabinet down the
Y arm.
  
  3565   Mon Sep 13 11:40:50 2010 AlbertoUpdateElectronicsFrequency Box Documentation Added to the SVNI uploaded all the material about the RF
frequency Generation Box  into the SVN under
the path:
 freqBoxSVNdierctoryStructure.png 
  3572   Tue Sep 14 18:07:41 2010 AlbertoUpdateElectronicsFrequency Box Documentation Added to the SVNI completed a LIGO document describing
design, construction and characterization
of the RF System for the 40m upgrade.
  
  3764   Fri Oct 22 18:22:27 2010 AlbertoUpdateElectronicsEpic Takeover


   
        
            
  
  3783   Tue Oct 26 07:02:05 2010 AlbertoConfigurationelogELOG 2.8.0 -> ELOG 2.7.5


   
        
            
  
  3893   Thu Nov 11 07:26:03 2010 AlbertoUpdateElectronicsREFL11 Photodiode Not Working


   
        
            
  
  8342   Mon Mar 25 18:58:09 2013 Albert YangUpdateoptical tablesOptical Table ToolboxesFor those of you who spend annoying amounts
of time looking for tools, fear no more.
Toolboxes for each optical table are coming!
  
  8382   Mon Apr 1 16:16:16 2013 AlbertUpdateoptical tablesOptical Table Toolboxes UpdateA heavy duty plastic box is the likeliest
candidate for the optical table toolbox.
It measures 5 9/16 in. x 11 5/8 in. x 4 5/8
  
  8384   Mon Apr 1 16:35:42 2013 AlbertUpdateoptical tablesOptical Table Toolboxes Update

    

       
            
  
  8408   Wed Apr 3 19:01:06 2013 AlbertUpdateoptical tablesOptical Table Toolboxes Update

    

       
            
  
  8445   Thu Apr 11 16:29:23 2013 AlbertUpdateoptical tablesOptical Table Toolboxes Update

    

       
            
 Diagram.png 
  8457   Mon Apr 15 17:44:28 2013 AlbertUpdateoptical tablesOptical Table Toolboxes UpdateI decided to go see what the electrical
tape looks like on the other tools.
These are the tools I felt were necessary
 photo.JPG 
  8502   Mon Apr 29 08:17:40 2013 AlbertUpdateoptical tablesOptical Table Toolboxes Update

    

       
            
  
  8505   Mon Apr 29 15:53:49 2013 AlbertUpdateoptical tablesOptical Table Boxes

    

       
            
 7x 
  3337   Fri Jul 30 19:20:15 2010 AlastairConfigurationGeneralJacket

    
        
  
  3368   Thu Aug 5 16:18:37 2010 AlastairUpdateGeneralclocks still not locked fully - hut removedThe rubidium clocks are still not quite
locked together, though it is clear that
the beat frequency has dropped a lot since
  
  3433   Wed Aug 18 12:02:29 2010 AlastairConfigurationComputerselog had crashed again......I restarted it.   
  3441   Thu Aug 19 09:52:51 2010 AlastairUpdateComputersElog down I restarted it using start-elog-nodus
and this worked out fine - even though I
did it from Pete's on my phone ;-)
  
  3442   Thu Aug 19 11:38:48 2010 AlastairUpdateComputersATF wikiThe ATF wiki page doesn't seem to be working
any more.  Does anyone know where this
is held so we can try to get it back online? 
  
  3443   Thu Aug 19 12:06:07 2010 AlastairUpdateComputersATF wiki


   
        
            
  
  3452   Fri Aug 20 20:36:05 2010 AlastairUpdateGeneralElog Elog was down, I restarted it.   
ELOG V3.1.3-