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ID Date Author Type Category Subjectdown Text Attachments
  8431   Tue Apr 9 14:55:13 2013 JamieUpdateCDSoverbooked test points cause of DAQ problemsFolks were complaining that they were getting
zeros whenever they tried to open fast channels
in DTT or Dataviewer.  It turned out
 lsc-gds.png 
  14002   Fri Jun 22 00:06:13 2018 shrutiUpdateGeneralover-head fluorescent lights downTwo out of the four over-head fluorescent
lights in the X end of the interferometer
were flickering today.
  
  9028   Mon Aug 19 10:16:15 2013 PicassoMetaphysicsTreasureoutsider art   ranasglory.png 
  2633   Tue Feb 23 16:20:44 2010 steveConfigurationVACoutgassing + leak

    
        
 outgleak.jpg 
  6856   Fri Jun 22 19:52:47 2012 JamieUpdateComputersottavia reconfigured as CDS workstationottavia has been reinstalled with Ubuntu
10.04 LTS, and has been configured as a CDS
workstation.
 workstation-setup.sh 
  1071   Thu Oct 23 11:26:25 2008 steveBureaucracyVACoptosigma forks for vacuumNine short forks from OptoSigma were cleaned,
baked and measured by Bob T.
They passed the LIGO vac compatiblity test
  
  5260   Thu Aug 18 00:58:40 2011 jamieUpdateSUSoptics kicked and left free swingingALL optics (including MC) were kicked and
left free swinging at:
997689421
  
  6190   Thu Jan 12 10:11:59 2012 steveUpdatePEMoptical table top with 1" wall

    

       
            
 101122012atc.PDF 
  6139   Tue Dec 20 15:49:21 2011 steveUpdatePEMoptical table top3/4 " thick colored acrylic material
will be used in this air tight design. Surgical
tubing for o-ring. We may have to put an
 05150901.PDF 
  10071   Thu Jun 19 14:12:45 2014 steveUpdatesafetyoptical table scans 
 PSL, AP, ETMY and ETMX optical
tables were scanned for stay beam.
  
  9941   Mon May 12 14:42:25 2014 steveUpdateendtable upgradeoptical table enclosure wall proposal and table at ETMY

    

       
            
 Hilite70.jpgETMY-ISCT.jpgRoscoThermashield.pdf 
  4701   Thu May 12 09:00:23 2011 steveUpdateGeneraloptical table covers must be usedI found ITMX-ISCT and BS-ISCT ( IFO sensing-control
table)  not covered this morning. Please
do not leave tables open.
  
  7106   Tue Aug 7 16:11:23 2012 steveUpdateSUSoptical table box wall proposal Sanwiched wall as shown: 1"
clear acrylic, 2 layers of 0.004" thick
"window tint", 1 layer of 
 IMG_1479.JPGIMG_1478.JPG 
  7107   Tue Aug 7 16:21:16 2012 ranaUpdateSUSoptical table box wall proposal

    

       
            
  
  1377   Mon Mar 9 17:11:38 2009 AlbertoConfigurationoplevsoptical levers centeringYoichi, Alberto
this afternoon we centered the optical
levers for all the optics.
  
  9156   Tue Sep 24 20:43:45 2013 masayukiSummarySUSoptical levers centeringI centered optical levers of ITMX,BS,ETMY.
I also change the position of optical levers
of ITMX, ETMY, ITMY, BS on Friday night(9/21),
 Screenshot-Untitled_Window.pngScreenshot-Untitled_Window-1.png 
  1020   Thu Oct 2 16:44:28 2008 steveSummaryoplevsoptical leversThe idea is to push the  UGF to 10 Hz of the
TM oplev servos with quiet HeNe laser.
We measured good intensity noise of JDS 1103P
  
  4727   Mon May 16 15:46:05 2011 KojiUpdateGeneraloptical layout viewable on the online version of autocadI have made my own AutoCAD WS account and
put the latest 40m layout.
AutoCAD WS is a free cloud service
  
  2957   Thu May 20 12:34:46 2010 kiwamuConfiguration40m Upgradingoptical breadboards with legsYesterday Steve and I revived two legs
to mount some optical breadboards outside
of the end table.
 leg1_small.pngleg2_small.png 
  6135   Sun Dec 18 23:00:22 2011 kiwamuUpdateSUSoplve recenterdI have recentered the oplev beams, including
BS, ITMs and ETMs.
  
  5261   Thu Aug 18 10:17:04 2011 kiwamu, steveUpdateSUSoplevs reestablished at VertexKiwamu and Steve, from yesterday
PRM and BS oplev paths were relaid
after setting 1/2 OSEM voltages. The incident
  
  11224   Thu Apr 16 10:32:42 2015 SteveUpdateOptical Leversoplevs monitoringThe IFO_overview of oplevs seems ok, The
servos are working fine. The green arms are
locked, but master and oplev_summary monitoring
 oplevCond.png 
  7242   Tue Aug 21 09:14:01 2012 SteveUpdateSUSoplevs centeredOplevs centered in flashing condition,
except PRM and SRM.  IP POS centered
also,
 OPLcentered.png 
  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
  
  7798   Fri Dec 7 19:24:43 2012 Den, AyakaUpdateSUSoplevs as acoustic and seismic noise couplers at high frequenciesWe've provided acoustic excitation using
speakers on the AS table and saw that PSD
of YARM feedback signal increased in the
 IMG_0111.JPGIMG_0112.JPGETMY_olreso_copy.pngYARM.png 
  7799   Fri Dec 7 20:34:31 2012 AyakaUpdateSUSoplevs as acoustic and seismic noise couplers at high frequenciesI will
just leave the picture of spectrum that shows
the injected acoustic sound effects due to
 YARM_acous_oplev.pdf 
  5082   Mon Aug 1 16:06:05 2011 steveUpdateSUSoplevs are centeredKiwamu, Koji and Steve,
Arm aligned separatly and oplev qpds
were centered  including BS. Than we
  
  6257   Mon Feb 6 17:06:11 2012 steveUpdateSUSoplev transferfunction of PIT: ETMY & ETMXKiwamu showed me how to do transferfunction
of oplev pitch
 ETMX_PIT.pngETMY_PIT.png 
  6320   Sat Feb 25 00:37:42 2012 kiwamuUpdateSUSoplev spectra during PRMI lockSomehow
the angular stability of the central part
have not been so great.
 oplev_PRMI.pdf 
  4731   Tue May 17 16:53:22 2011 kiwamuUpdateSUSoplev sign was wrong on ETMYLast
night I found that the sign of the oplev
control of PITCH on ETMY was wrong.
  
  1612   Wed May 20 09:55:18 2009 steveUpdatePEMoplev servos turned offAll oplevs servos turned off to protect
our suspentions from vibration due to drilling
and pounding in CES high bay area.
 ACpart6m.jpg 
  6964   Wed Jul 11 16:19:08 2012 yutaUpdateSUSoplev servo phiologyI heard that Steve did great work on oplev
in Feb 2012.
Here's summary what happened to oplev
  
  6370   Wed Mar 7 11:20:23 2012 steveUpdateSUSoplev qpd offsets zeroedAll oplev qpd quadrons were zeroed by offset 
in blocked dark condition.
  
  10362   Mon Aug 11 10:23:39 2014 steveSummarySUSoplev laser summary updated

    

       
            
  
  10518   Thu Sep 18 10:08:07 2014 steveSummarySUSoplev laser summary updated 




  
  11148   Thu Mar 19 17:11:32 2015 steveSummarySUSoplev laser summary updated          
March  19, 2015   2 
new  JDSU 1103P, sn P919645 & P919639
  
  12126   Mon May 23 15:51:32 2016 steveSummarySUSoplev laser summary updated 




 oplSum.png 
  12341   Wed Jul 27 11:40:48 2016 steveSummarySUSoplev laser summary updated 




  
  12753   Wed Jan 25 10:46:58 2017 steveSummarySUSoplev laser summary updated                   
Oct.  5, 2015             
ETMY He/Ne
 oplev_sums.png 
  12892   Fri Mar 17 15:30:39 2017 SteveSummarySUSoplev laser summary updated   
     March  17, 
2017        
 oplev_sums.png 
  12933   Mon Apr 10 09:58:35 2017 SteveSummarySUSoplev laser summary updated 




  
  13126   Wed Jul 19 12:47:43 2017 SteveSummarySUSoplev laser summary updated1103P, sn P893518 of  2013 vintage
is dead at the sus  fiber demo

  
  13128   Wed Jul 19 18:24:15 2017 ranaSummarySUSoplev laser summary updatedThe $1000 HeNe should not be used for illuminating
fibers.

You should purchase these (total
  
  11792   Fri Nov 20 09:45:39 2015 steveSummarySUSoplev laser summary  




 oplev_summery.png 
  10350   Fri Aug 8 11:22:35 2014 steveSummarySUSoplev laser summary 
         
        2005             
  
  12932   Mon Apr 10 09:49:32 2017 SteveUpdateOptical Leversoplev laser RIN test planningWe are planning to test 3 identical 1103Ps
RIN with  continous temp monitoring
and control later.
  
  12934   Mon Apr 10 14:21:57 2017 ranaUpdateOptical Leversoplev laser RIN test planningI'm suspicious of this temperature
sensor comparison. Usually, what they mean
by accuracy is not the same as what we mean.
  
  12858   Wed Mar 1 08:28:04 2017 SteveUpdateOptical Leversoplev laser RINGautam and Steve,

New JDSU 1103P HeNe oplev laser
RIN was measured on the SP table with cover
 RIN_1103P.pngRIN_HeNe.png 
  12863   Thu Mar 2 13:59:04 2017 SteveUpdateOptical Leversoplev laser RINThe laser got much better at low frequency
as it warmed up. This laser is almost as
good as the electronics?
 1103P@2d.png 
  12864   Thu Mar 2 17:58:45 2017 ranaUpdateOptical Leversoplev laser RINThis measurement looks bogus - the difference
between dark and not dark is not significant
enough to believe. Need to figure out how
  
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