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ID Date Author Type Category Subjectup Text Attachments
  13529   Wed Jan 10 22:24:28 2018 johannesUpdateDAQetmx slow daq chassisThis evening I transitioned the slow controls
to c1auxex2.


Disconnected satellite
  
  13535   Thu Jan 11 20:59:41 2018 gautamUpdateDAQetmx slow daq chassisSome suggestions of checks to
run, based on the rightmost colum in the
wiring diagram here
  
  13537   Fri Jan 12 10:02:05 2018 johannesUpdateDAQetmx slow daq chassis


Quote:


  
  13543   Fri Jan 12 19:15:34 2018 johannesUpdateDAQetmx slow daq chassisSteve and I removed c1auxex from 1X9 today
to make space for the DAQ chassis. Steve
installed rails for mounting. To install
  
  232   Thu Jan 10 10:38:02 2008 steveUpdateSUSetmy damping restoredThe IST building onstruction has really started
yesterday and continuing today with big heavy
ground breaking
 etmysus.jpgsustrend16d.jpg 
  938   Wed Sep 10 08:57:03 2008 steveUpdateGeneraletmy illuminator turned offThe ETMY illuminator was left on yesterday.
I just turned it off.
  
  504   Thu May 29 16:32:09 2008 steveUpdateSUSetmy oplev is backI relayed the optics for ETMY-oplev as shown
in pictures below.
The reflected beam goes directly to the qpd
 P1020417.pngP1020420.png 
  507   Fri May 30 12:37:45 2008 robUpdateSUSetmy oplev is back[quote]I relayed the optics for ETMY-oplev
as shown in pictures below.
The reflected beam goes directly to the qpd[/quote]
  
  487   Mon May 19 11:49:57 2008 steveUpdateSUSetmy oplev laser replacedThe 9 years old Uniphase HeNe was replaced
by a new JDSU 1103P
Power output ~3.5 mW, reflected light back
  
  1578   Tue May 12 17:26:56 2009 peteUpdateoplevsetmy oplev quad was badPete, Rob
After looking at some oplev noise
spectra in DTT, we discovered that the ETMY
 bad_oplev_quad.pdf 
  1580   Wed May 13 03:05:13 2009 peteUpdateoplevsetmy oplev quad was bad


   
        
            
  
  122   Mon Nov 26 10:17:31 2007 steveOmnistructureSUSetmy sus damping restored20 days plot is showing etmy loosing damping
4 times.
I zoomed in with each event. Three of them
 etmyrms20d.jpgetmyrmseq.jpg 
  222   Thu Jan 3 09:55:11 2008 steveUpdateSUSetmy sus damping restoredETMY watch dog was lost at midnight  etmy12h.jpg 
  254   Wed Jan 23 09:27:55 2008 steveUpdate etmy sus damping restoredSeismis event trips etmy  etmysus.jpg 
  237   Mon Jan 14 14:41:09 2008 steveUpdateSUSetmy sus damping restored & mz relockedTree days trend of MZ HV drift is typical
these days.
So as the etmy sus inability to hold damping
 etmysus&mzhvtrend.jpg 
  225   Fri Jan 4 08:42:03 2008 steveUpdateSUSetmy trips againETMY sus damping tripped at 6am this morning
It was reset. We should put an accelerometer
to the south end to see
 etmy20m.jpgetmy120s.jpgetmysenV.jpg 
  220   Thu Jan 3 08:53:55 2008 steveUpdateSUSetmy vs etmxRana have corrected sus gain damping setting
of ETMY 8 days ago
 sus.jpg 
  6226   Thu Jan 26 08:36:38 2012 steveUpdateSAFETYevacuation drillIt started with fire alarm test yesterday
at 14:50 All alarms are  functioning
VERY loud and their flashers are bright.
  
  3311   Wed Jul 28 14:54:56 2010 steveUpdateSAFETYevacuation drill at the 40mHead count at the evacuation drill today.
I checked  alarms and flashers 
at room 104,102,101, 103, 105 and 107. They
 P1060520.JPG 
  6348   Fri Mar 2 18:11:50 2012 jamieSummarySUSevaluation of eLIGO tip-tilts from LLO[Suresh, Jamie]
Suresh and I opened up and checked
out the eLIGO tip-tilts assemblies we received
  
  609   Tue Jul 1 10:15:22 2008 steveUpdatePSLeventfull two daysThe laser recovered from a short temp rise.
The MZ was aligned and realigned. The suspentions
were kicked up accidentally. 
 2d.jpg 
  6403   Tue Mar 13 07:04:55 2012 kiwamuUpdateLSCevolution of the sensing matrix in PRMI as a function of timeThe
punch line is -- the sensing matrix still
looks strange in the PRMI configuration.
 PRCL.pngMICH.png 
  6406   Tue Mar 13 16:56:19 2012 kiwamuUpdateLSCevolution of the sensing matrix in PRMI as a function of timeNext steps:

    Compare the obtained sensing
matrix with an Optickle model. Particularly
  
  6419   Wed Mar 14 21:01:36 2012 keikoUpdateLSCevolution of the sensing matrix in PRMI as a function of timeThis is the simulated signals
to compare with the original post #6403
  
  6405   Tue Mar 13 16:40:06 2012 kiwamuUpdateLSCevolution of the sensing matrix in PRMI as a function of time: detailsHere
I describe the measurement of the sensing
matrix.
 lockins_MICH.png 
  9489   Wed Dec 18 15:35:48 2013 SteveUpdatePEMexcess seismic noiseThis is not a test. Life can be dangerous
in the 40m Control  Room.
 seismicCar.jpg 
  7669   Mon Nov 5 10:34:48 2012 SteveUpdateVACexisting vacuum documents

    

       
            
  
  7154   Sun Aug 12 01:21:26 2012 steveUpdateSAFETYexit door left unlockedCaltech security called me at 1am Sunday.
 Control room emergency
  
  7155   Sun Aug 12 10:34:45 2012 KojiUpdateSAFETYexit door left unlockedI unlocked the door on Tuesday in order
to move the red cart. 
After that I confirmed that the door
  
  6444   Mon Mar 26 15:15:16 2012 kiwamuUpdateIOOexpected beam profile of PRM reflectionI have estimated how the mode profile
of the PRM reflection should be, as shown
in the plot blow.
 expected_edit.png 
  4154   Fri Jan 14 11:29:00 2011 kiwamuUpdateLSCexpected open loop TF of X arm lockingHere shows a plot of the expected open
loop transfer function (TF) for the X arm
locking.
 xarm_oltf.png 
  6445   Mon Mar 26 16:25:44 2012 kiwamuUpdateIOOexpected v.s. measured beam profile of PRM reflection[Suresh / Kiwamu]
 We did the 2nd round of
the PRM reflection mode scan on Friday.
 PRMreflection.pngDSC_4001_small.jpg 
  6692   Sat May 26 20:40:48 2012 DenUpdatePEMexperiments with seismic noiseI measured relative motion of 2 seismometers
separated by 4, 18 and 38 feet.
 DSC_4307.JPGDSC_4308.JPGsim_delta.pngratio.pngpsd_distance.png 
  6695   Sun May 27 23:15:22 2012 DenUpdatePEMexperiments with seismometersI wondered if linoleum is a reason of high
Guralp noise. I measured Guralp noise in
3 cases: they stand on a very soft piece
 DSC_4309.JPGDSC_4310.JPGDSC_4311.JPGloc_noise.png 
  2066   Wed Oct 7 20:32:21 2009 ranaUpdateAdaptive Filteringextra delay and noise in PEM -> ASS/OAF system[Rana, Jenne]
There is some craziness going on
with the delay in the PEM path for the OAF. 
 a.gif 
  2116   Mon Oct 19 11:31:55 2009 JenneUpdateAdaptive Filteringextra delay and noise in PEM -> ASS/OAF system

    
        
 PEM-timing_19Oct2009.png 
  2121   Mon Oct 19 19:37:39 2009 Sanjit, JenneUpdateAdaptive Filteringextra delay and noise in PEM -> ASS/OAF systemRana pointed out that the delay may be
caused by the 110B DAQ, as it integrates
over 2ms (5 clock cycles at 2048Hz on the
 PEM_timingDealy_19OCT09_MCL2PEM2.png 
  2125   Tue Oct 20 11:38:10 2009 rana, rolfUpdateAdaptive Filteringextra delay and noise in PEM -> ASS/OAF systemAn email from Rolf about the delay in
the 110Bs: 
  
  274   Sat Jan 26 18:12:45 2008 ranaHowToComputersextra processes and crashesThere were a load of extra processes on op440m;
they were all related to rogue DV processes
(frameMemRead, framer4, xmgrace, etc.)
  
  1356   Wed Mar 4 17:59:14 2009 YoichiConfigurationComputersezca tools and tds tools work aroundSome of ezca commands and tds commands sporadically
fail with a segmentation fault on linux machines.
As far as I know, ezcawrite, ezcastep, ezcaswitch,
  
  1368   Fri Mar 6 18:26:37 2009 YoichiConfigurationComputersezca tools and tds tools work aroundI updated the wrapper scripts so that they
do not retry more than 6 times.
Otherwise, the wrapper scripts loop over
  
  2734   Tue Mar 30 11:16:05 2010 josephbHowToComputersezca update information (CDS SVN)I'd like to try installing an updated multi-threaded
ezca extension later this week, allowing
for 64-bit builds of GDS ezca tools, provided
  
  2273   Mon Nov 16 15:13:25 2009 josephbUpdateComputersezcaread updated to Yoichi style ezcawriteIn order to get the gige camera code running
robustly here at the 40m, I created a "Yoichi
style" ezcaread, which is now the default,
  
  5417   Thu Sep 15 15:11:38 2011 kiwamuUpdateSUSf2a filters on BS and PRMThe f2a
filters were newly designed and installed
 PRMf2a.pngBS_f2a.png 
  5452   Mon Sep 19 01:07:32 2011 kiwamuUpdateSUSf2a filters on ITMs and ETMXThe f2a filters
were installed on ITMs and ETMX.
 f2a_ITMX.pngf2aITMY.pngf2a_ETMX.png 
  5435   Fri Sep 16 16:29:05 2011 kiwamuUpdateSUSf2a filters on SRMNew f2a filters
were installed on SRM.
 F2ASRM_Sep16.png 
  4326   Fri Feb 18 18:46:08 2011 kiwamuSummarySUSf2p done on ETMX and ITMX
The f2p measurements are done on
 f2p_ITMX.pngf2p_ETMX.png 
  4682   Tue May 10 22:56:17 2011 kiwamuUpdateSUSf2p filters installed on ETMYNew f2p filters
were installed on ETMY.  
 f2p_etmy.png 
  4688   Wed May 11 11:44:52 2011 kiwamuUpdateSUSf2p filters installed on ITMYNew f2p
filters were installed on 
 f2p_itmy.png 
  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 
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