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  40m Log, Page 118 of 339  Not logged in ELOG logo
ID Date Author Type Categoryup Subject Text Attachments
  2639   Thu Feb 25 11:21:06 2010 KojiUpdateGeneralTanks opened[Steve, Bob, Joe, Zach, Alberto, Kiwamu,
Koji]
We opened the OMC-IMC access connector,
  
  2643   Fri Feb 26 11:48:36 2010 KojiUpdateGeneralMC incident beam shiftLast night I worked on the MC incident
beam such that we can hit the center of the
MC mirrors.
  
  2645   Sun Feb 28 16:45:05 2010 ranaSummaryGeneralPower ON Recovery
    Turned ON the RAID above linux1.

   Hooked up a monitor and keyboard and
then turned ON linux1.
    After
  
  2664   Tue Mar 9 09:32:31 2010 KojiSummaryGeneralWideband measurement of Fast PZT responseI have measured a wideband response
of the fast PZT in the LWE NPRO 700mW in
the Alberto's setup.
 PZT_response.png 
  2709   Wed Mar 24 12:40:25 2010 daisukeConfigurationGeneralPeriscope for green laser delivery from the BSC to PSL tableThe periscope design for beam elevation
of the green beams is posted. The design
for the 90 deg steering version is also coming.
 40m_periscope.png40m_periscope_A_100329.pdf40m_periscope_A_dwg_100329.zip 
  2725   Mon Mar 29 01:45:26 2010 daisukeConfigurationGeneralPeriscope version B for green laser ...Here the design of the periscope for the
90 deg steering version is posted.
straight version http://nodus.ligo.caltech.edu:8080/40m/2709
 40m_periscope_B.png40m_periscope_B_100329.pdf40m_periscope_B_dwg_100329.zip 
  2746   Thu Apr 1 00:43:33 2010 MottUpdateGeneralPZT response for the innolightKiwamu and I measure the PZT response of
the Innolight this evening from 24 kHz to
2MHz.  
 Innolight_Bode.png 
  2747   Thu Apr 1 07:17:15 2010 KojiUpdateGeneralPZT response for the innolightThe shape of the TF looks nice but the
calibration must be wrong.
Suppose 1/f slope with 10^-4 rad/V
  
  2748   Thu Apr 1 10:21:58 2010 MottUpdateGeneralPZT response for the innolight


   
        
            
 Innolight_Response.pngLightwave_response.png 
  2749   Thu Apr 1 10:47:48 2010 KojiUpdateGeneralPZT response for the innolightInnolight: 100rad/V @ 100kHz  =>
1e7/f rad/V => 10MHz/V
LWE: 500rad/V @ 100kHz => 
  
  2750   Thu Apr 1 12:07:22 2010 ranaUpdateGeneralPZT response for the innolightThe Lightwave NPRO   
  2754   Thu Apr 1 18:05:29 2010 MottUpdateGeneralPZT response for the innolight 
 We realized that we had measured
the wrong calibration value; we were using
 Innolight_Response_calFix.pngLightwave_response_calFix.png 
  2755   Thu Apr 1 18:44:40 2010 KojiUpdateGeneralPZT response for the innolightInnolight 10 rad/V @ 100kHz => 1e6/f
rad/V => 1MHz/V
LWE 30 rad/V @ 100kHz => 3e6/f
  
  2756   Thu Apr 1 19:59:32 2010 MottUpdateGeneralPZT response for the innolight 
 We measured the Amplitude Modulation
response of the PZTs, to find regions with
 Innolight_AM_Response.pngInnolight_AM_PM.pngInnoVsLW_PM.pngInnolight_AM_Response.pngLightwave_AM_PM.png 
  2763   Sun Apr 4 17:32:07 2010 AlbertoMetaphysicsGeneralnew y-arm?


   
        
            
  
  2845   Mon Apr 26 12:24:58 2010 josephbUpdateGeneralDaily Downs updateTalked with Jay briefly this morning.
We are due another 1-U 4 core (8
CPU) machine, which is one of the ones currently
  
  3063   Thu Jun 10 10:58:02 2010 KojiUpdateGeneralLaTeXlabsI could not dare to share my google doc
with this site...

  
  3064   Thu Jun 10 11:10:21 2010 AlbertoUpdateGeneralLaTeXlabs


   
        
            
  
  3082   Wed Jun 16 18:14:13 2010 AidanUpdateGeneralGlass cover from overhead light smashed on PSL tableI was giving a tour of the 40m yesterday.
We were looking at the PSL table. About 30
seconds after I turned the lights on a glass
 DSC_1769.JPGDSC_1768.JPG 
  3085   Fri Jun 18 13:42:52 2010 KojiHowToGeneralUpdate your workAll SURFs (and all others as always) are
supposed to post the update of your status
on the elog.
  
  3103   Wed Jun 23 12:31:36 2010 GopalUpdateGeneral6.16.10-6.23.10 Weekly UpdateSummary of This Week's Activities:
6/16: LIGO Orientation; First Weekly
Meeting; 40m tour with Jenne; Removed WFS
  
  3142   Wed Jun 30 11:35:06 2010 Gopal UpdateGeneral6.23.10 - 6.30.10 Weekly UpdateSummary of this Week's Activities:
6/23: LIGO Safety Tour; Simulink
Controls Tutorial
  
  3218   Wed Jul 14 12:31:11 2010 nancyUpdateGeneralWeekly UpdateSummary of this week's work  


Wednesday
- Aligned the mode cleaner with Koji, and
then measured the beam characteristics at
  
  3251   Tue Jul 20 15:06:48 2010 josephb, bobOmnistructureGeneralNew speakers in ceiling in control roomAfter the crane training, Bob attached
speakers to the ceiling right next to the
projector, for use with presentations.
  
  3284   Sat Jul 24 13:13:41 2010 rana, steve, albertoUpdateGeneralInitial Crane Inspection reveals flaws: wiring and oilThe guy from KroneCrane (sp?) came today
and started the crane inspection on the X
End Crane. There were issues with our crane
  
  3290   Mon Jul 26 10:04:24 2010 steveUpdateGeneralInitial Crane Inspection reveals flaws: wiring, oil and imbalance


   
        
            
 2500.JPGsedrum.JPG 
  3300   Tue Jul 27 16:33:50 2010 KojiSummaryGeneralHigh school students tourJenne made the 40m tour for the annual
visit of 30-40 students.
c.f.
 IMG_2657.jpg 
  3312   Wed Jul 28 16:42:21 2010 steveUpdateGeneralCrane gear box cheched


   
        
            
 P1060503.JPGP1060511.JPGP1060515.JPGP1060517.JPG 
  3318   Thu Jul 29 12:31:09 2010 KojiSummaryGeneralLab ScheduleJuly 
29 Thu BS chamber work: Move cable
towers / green steering mirrors / (2 TTs
 PSL_work_schedule.pdf 
  3333   Fri Jul 30 14:53:09 2010 steveUpdateGeneralPSL table leg upgrade


   
        
            
 psllegs.PDF 
  3335   Fri Jul 30 17:52:12 2010 KojiConfigurationGeneralJacketJenne and I need our jackets. We removed
them from the Rb clock.
Thanks for making them warm. Probably
  
  3337   Fri Jul 30 19:20:15 2010 AlastairConfigurationGeneralJacket

    
        
  
  3348   Mon Aug 2 17:12:28 2010 KojiUpdateGeneralLab schedule for the week of Aug. 2Aug
2 Mon - 5 Thu WFS work (Nancy)
 PSL_work_schedule.pdf 
  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
  
  3377   Fri Aug 6 16:20:08 2010 ranaUpdateGeneralclocks still not locked fully - phase shifted I tried to get the clocks to be closer
to 90 deg for the relative phase by adding
some cable length to one of the lines, but
 Untitled.pdf 
  3378   Fri Aug 6 17:47:36 2010 steveSummaryGeneralcranes load tested at 1998 lbs


   
        
            
 0.9ton.PDFP1060523.JPGP1060532.JPGP1060541.JPG 
  3394   Tue Aug 10 17:21:48 2010 steveUpdateGeneralPSL optical table is at 30" heightMike Gerfen, Koji and Steve,
 
Our old ( 6 x 10 x 1 ) ft Newport
 P1060586.JPGP1060583.JPGP1060591.JPGP1060593.JPGP1060597.JPG 
  3452   Fri Aug 20 20:36:05 2010 AlastairUpdateGeneralElog Elog was down, I restarted it.   
  3461   Tue Aug 24 06:34:01 2010 AlastairUpdateGeneralElog......was down.  Have restarted it.   
  3475   Fri Aug 27 07:21:13 2010 AlastairUpdateGeneralelog... was down.  I restarted the version
in the 2.7.5 folder.  It went down again
almost immediately but stayed up after the
  
  3567   Mon Sep 13 12:09:42 2010 kiwamuSummaryGeneralelog restarted Elog didn't respond, so I restarted
it with the script.
Before killing the process somehow
  
  3605   Fri Sep 24 16:31:35 2010 steveConfigurationGeneralopen frame- rack is movedThe squeezing open frame rack was moved
from the south side of the PSL enclosure
to the north side of the SP table.
 P1060881.JPG 
  3616   Tue Sep 28 14:12:14 2010 steveUpdateGeneralvertex crane drive is out of orderThe vertex crane drive is overheating,
it stopped functioning. Service man will
be here tomorrow morning.
  
  3621   Wed Sep 29 15:34:46 2010 kiwamuUpdateGeneralfixing vertex crane
    

       
            
  
  3624   Thu Sep 30 09:34:58 2010 steveUpdateGeneralvertex crane trolly drive fixed


   
        
            
 P1060891.JPGP1060887.JPGP1060889.JPGP1060893.JPG 
  3733   Mon Oct 18 09:01:48 2010 steveHowToGeneralHow not to This BNC cable is crying for help. Please
do not do this to me.  It should be
reported  to the  abused center.Throw
 P1060926.JPG 
  3745   Wed Oct 20 16:41:41 2010 steveOmnistructureGeneral laser chiller leaving for MIT   P1060929.JPG 
  3832   Mon Nov 1 10:17:55 2010 steveUpdateGeneralbreakers relabelledPedro of the electrical shop helped to
retrace wires from the racks to the breakers.
Many wrong labels were replaced. These labels
 P1060970.JPGP1060972.JPGP1060975.JPG 
  3854   Wed Nov 3 16:49:31 2010 steveUpdateGeneralstorage cabinet is in placeThe south end of IFO room 104 was reshuffled.
The flow bench was moved all the way to the
south end to create more room for the crane
 P1070018.JPG 
  3862   Thu Nov 4 17:24:49 2010 steveUpdateGeneralconflat flanges for MIT8 pieces of 10" CF blanks were shipped
to MIT
 P1070020.JPG 
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