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  40m Log, Page 6 of 344  Not logged in ELOG logo
ID Date Authorup Type Category Subject Text Attachments
  1263   Mon Feb 2 12:35:22 2009 AlbertoConfigurationGeneralNew Elog 2.7.5 in Service on NodusI moved the 40m, the Adhikari Lab and the
SUS elogs from Dziban (located in Millikan's
6th floor) to our gateway server Nodus. In
  
  1264   Mon Feb 2 17:25:44 2009 AlbertoConfigurationGeneralSome little problem with the new elogFor some reason the new elog does not look
exactly like it should. 

1) Some of the
editing features are not available.

2)
  
  1265   Mon Feb 2 18:32:54 2009 AlbertoConfigurationGeneralSome little problem with the new elog


   
        
            
  
  1266   Mon Feb 2 18:51:02 2009 AlbertoConfigurationGeneralNew Elog 2.7.5 in Service on Nodus


   
        
            
  
  1268   Tue Feb 3 15:01:38 2009 AlbertoFrogsComputersmegatron slow?I notice that Megatron is slower than any
other computer in running code that invokes
optickle or looptickle (i.e. three times
  
  1308   Mon Feb 16 10:18:13 2009 AlbertoUpdateLSCFE system rebooted[quote][quote]
  I didn't get a chance to do much testing
since the sus controller (susvme1) went nuts.
  
  1345   Mon Mar 2 16:27:40 2009 AlbertoConfigurationElectronicsMC Drum Mode SR560 Preamplifier ReplacedToday I checked out the SR560 around the
lab. I confirmed that the one with the label
"channel A noisy" is effectively
  
  1348   Tue Mar 3 10:39:07 2009 AlbertoUpdateLSCc1lsc discontinued functioningThe c1lsc has been unstable since last
night. Its status on the DAQ screen was oscillating
from green to red every minute.
  
  1354   Wed Mar 4 12:38:07 2009 AlbertoUpdateComputer Scripts / Programs3f locking simulationsI simulated the REFL signals demodulated
at the differential frequencies of the sidebands
(f2-f1), at their summed frequencies (f2+f1).
 23_3f_40mOld_DDplots.pdf59_3f40m_Upgrade_DDplots.pdf20_3f_AdvL_DDplots.pdf 
  1373   Mon Mar 9 11:09:33 2009 AlbertoUpdateComputersRe: Not even data retrieval working[quote]Although getting the regular DAQ data
works, we can't get any testpoints.
  
  1377   Mon Mar 9 17:11:38 2009 AlbertoConfigurationoplevsoptical levers centeringYoichi, Alberto
this afternoon we centered the optical
levers for all the optics.
  
  1421   Tue Mar 24 13:10:07 2009 AlbertoConfigurationPSLnew mirror installed on the AP tableNew flipping mirror installed on the AP
table on the beam path to the REFL199 PD.
If you're missing the double demod
  
  1479   Mon Apr 13 18:57:03 2009 AlbertoFrogsComputersGPIB/ETH Interface TroublesI really don't understand why my programs
that I used to use to get data from the HP
Spectrum Analyzer and the Marconi frequency
 sweepfrequencyPRC.pyHP8590PRC.py 
  1481   Tue Apr 14 12:10:11 2009 AlbertoFrogsComputersGPIB/ETH Interface Troubles


   
        
            
  
  1490   Thu Apr 16 16:37:42 2009 AlbertoUpdateAuxiliary lockingthe zipper It takes 18 months to double the computational
power of microprocessors but it took man
thousands of years to invent the zipper.
 19_3f_Current_40m_plots_SUCCESS.pdf 
  1491   Thu Apr 16 17:19:44 2009 AlbertoUpdateAuxiliary lockingthe zipper


   
        
            
 04_3f_Current_40m_plots.pdf11_3f_40mUpgrade_plots.pdf 
  1538   Fri May 1 18:24:36 2009 AlbertoSummaryGeneraljitter of REFL beam ?Some loud thinking.
 
For
the measurement of the length of the PRC,
I installed a fast photodiode in the path
  
  1539   Fri May 1 18:51:34 2009 AlbertoSummaryEnvironmentearthquakeEarthquake 4.4 Leo Carrillo Beach.
Some of the watchdogs tripped out.
  
  1543   Mon May 4 16:49:56 2009 AlbertoUpdateMOPAlaser power is dropped


   
        
            
  
  1556   Thu May 7 17:59:23 2009 AlbertoConfiguration MC WFSThis afternoon the MC could not get locked.
I
first checked the Osems values at the MC
mirrors and compared them to the trend of
  
  1636   Mon Jun 1 13:56:52 2009 AlbertoUpdatePSLLaser Power after fixing the laser chillerThe laser power seems to have become more
stable after fixing the laser chiller. The
power is lower than it used to be (MOPA amplitude
 MOPAtrend.jpg 
  1644   Tue Jun 2 23:55:45 2009 AlbertoUpdateoplevsoplevs centerdTonight I centered the oplevs for ITMX/Y,
SRM, PRM, BS.
After doing that I noticed that the
  
  1661   Mon Jun 8 18:22:27 2009 AlbertoDAQLSCAdded PD11 I amd Q slow channelsI just added two slow channels to C0EDCUEPICS
to monitor the input of PD11. The names are:
[C1:LSC-PD11_I_INMON]
  
  1664   Wed Jun 10 01:52:34 2009 AlbertoUpdateElectronicsMC length and Marconis' frequenciesPete, Rob, Alberto,
yesterday we thought that some of
the problems we were having in locking the
  
  1667   Thu Jun 11 03:15:15 2009 AlbertoUpdateLSCDD Handoff attemptsPete, Alberto,
tonight we worked on the tuning of
the double demod phases for the handoff of
  
  1669   Thu Jun 11 22:14:10 2009 AlbertoUpdateLSCDD Handoff for the Short DOFs completedThis afternoon I tuned the handoff script
for the SRC, after that Rob eralier during
the day had already adjusted that for PRC.
  
  1681   Tue Jun 16 20:03:41 2009 AlbertoUpdateElectronicsRequirements on Wenzel MultiplierFor
the 40m Upgrade, we plan to 
 SummaryOfResult.pdf 
  1686   Fri Jun 19 13:38:42 2009 AlbertoConfigurationComputerselog rebootedToday I found the elog down, so I rebooted
it following the instructions in the wiki.
  
  1688   Fri Jun 19 14:30:47 2009 AlbertoConfigurationComputerselog rebooted


   
        
            
  
  1709   Tue Jun 30 23:09:40 2009 AlbertoUpdateLockingchronicles of some locking attemptsTonight I tried to lock the interferometer.
At the first attempts the arm power didn't
go above about 4. The mode cleaner seemed
  
  1722   Wed Jul 8 11:13:36 2009 AlbertoOmnistructureComputerswireless router disconnectedOnce again, this morning I found the wireless
router disconnected from the LAN cable. No
martian WiFi was available.
  
  1725   Wed Jul 8 19:13:19 2009 AlbertoUpdatePSLPSL beam aligned to the Mode CleanerToday I tuned the periscope on the PSL
table to align the beam to the Mode Cleaner.
With the Wave Front Sensor control off, I
  
  1735   Mon Jul 13 00:34:37 2009 AlbertoDAQComputersAll computers down


   
        
            
  
  1736   Mon Jul 13 00:53:50 2009 AlbertoDAQComputersAll computers down


   
        
            
  
  1737   Mon Jul 13 15:14:57 2009 AlbertoUpdateComputersDAQAWGToday Alex came over, performed his magic
rituals on the DAQAWG computer and fixed
it. Now it's up and running again.
  
  1742   Tue Jul 14 00:57:11 2009 AlbertoUpdateLockingphotodiode alignment checkSince lately the alignment of the input
beam to the interferometer has changed, I
went checking the alignment of the beam on
  
  1749   Wed Jul 15 12:14:08 2009 AlbertoUpdateLockingphotodiode alignment check


   
        
            
 2009-07-15_PD9spectrumPDF.pdf 
  1755   Thu Jul 16 01:00:56 2009 AlbertoUpdateLockingPD9 aligned


   
        
            
 2009-07-15_PD9spectrumPDF02.pdf 
  1772   Wed Jul 22 01:57:19 2009 AlbertoConfigurationComputerscomputers are down


   
        
            
  
  1773   Wed Jul 22 09:04:10 2009 AlbertoConfigurationComputerscomputers are down


   
        
            
  
  1774   Wed Jul 22 10:49:40 2009 AlbertoUpdatePSLMC Alignment TrendTrying to track the MC positions back for
a few days, it seems that the data hasn't
been recorded properly for a while. Something
 2009-07-21_MC-align-trend.pdf2009-07-22_mc-align-trend.pdf 
  1776   Wed Jul 22 11:14:11 2009 AlbertoConfigurationComputerscomputers are down


   
        
            
  
  1783   Thu Jul 23 10:05:38 2009 AlbertoUpdatePSLSummary of the latest adventures with the alignment of the mode cleaner


  
  1784   Thu Jul 23 20:30:23 2009 AlbertoUpdatePSLBeam aligned to the FaradyAfter yesterday's changes in the MC cavity
state today it was necessary to optimize
the alignment to the Faraday.
  
  1785   Fri Jul 24 11:04:11 2009 AlbertoConfigurationComputerselog restartedThis morning I found the elog down. I restarted
it using the procedure in the wiki.
  
  1788   Fri Jul 24 21:02:46 2009 AlbertoUpdatePSLAligning the beam to the FaradayThis afternoon I kept working on the alignment
of the beam so that it matches at the same
the PSL periscope, the Mode Cleaner and the
  
  1794   Sun Jul 26 16:05:17 2009 AlbertoUpdatePSLAligning the mode cleaner


   
        
            
  
  1803   Wed Jul 29 11:58:57 2009 AlbertoUpdatePSLMC not lockingThis morning I found the Mode Cleaner unlocked.
I check the sliders for the mirrors
bias and they have not changed. Also the
  
  1817   Mon Aug 3 01:08:20 2009 AlbertoUpdatePSLMC unlockedFriday afternoon the mode cleaner got unlocked.
Then some adjustment of the MC1 bias sliders
locked it again. The driftmon showed the
  
  1818   Mon Aug 3 12:57:09 2009 AlbertoUpdatePSLMC unlocked


   
        
            
  
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