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  40m Log, Page 341 of 344  Not logged in ELOG logo
ID Date Author Type Category Subjectup Text Attachments
  2635   Tue Feb 23 19:00:45 2010 kiwamuConfigurationVACvent finishedThe vent has been
finished.
  
  3259   Wed Jul 21 12:41:31 2010 kiwamuUpdateVACvent finishedThe vent
has been finished successfully in this morning.
  
  3266   Thu Jul 22 08:07:27 2010 steveUpdateVACvent finished

    
        
 30hvent.jpg 
  6889   Thu Jun 28 20:59:28 2012 yutaBureaucracyLockingvent for PRC check, TOMORROW!Koji, Jamie and I talked together and I decided to VENT TOMORROW   
  6890   Thu Jun 28 22:08:57 2012 JenneBureaucracyLockingvent for PRC check, TOMORROW!

    

       
            
  
  6891   Fri Jun 29 01:49:36 2012 yutaBureaucracyLockingvent for PRC check, TOMORROW!

    

       
            
  
  7849   Tue Dec 18 10:43:20 2012 SteveUpdateVACvent has completed The 40m vacuum envelope is at atm   
It took 4.5 hours at ~3 Torr/min speed. Atm1
 
 vent74.pngbvent.pngbefVent.png 
  7582   Fri Oct 19 16:45:39 2012 SteveUpdateVACvent has started

    

       
            
  
  7584   Fri Oct 19 19:26:42 2012 JenneUpdateVACvent has started

    

       
            
  
  5111   Wed Aug 3 16:18:30 2011 steveUpdateVACvent is almost finishedP1 at 750 Torr,  Vent valve VV1 is
left open to atm. It will reach equilibrium
in an hour. The PSL power is not turned down
 vent8h.jpg 
  2636   Tue Feb 23 19:07:43 2010 kiwamu and steveConfigurationVACvent is completed

    
        
 vent2010feb23.jpg 
  10532   Wed Sep 24 13:28:48 2014 SteveUpdateVACvent is completed The vent is completed. ITMX was kicked
up accidentally. Valve configuration: chamber
open, RGA is pumped through VM2  Maglev
 ventiscompleted.pngatAtm.png 
  10533   Wed Sep 24 16:02:58 2014 JenneUpdateVACvent is completed[Steve, EricQ, Jenne]
ITMY and BS heavy doors are off,
light doors are on.  Q is aligning the
  
  5698   Wed Oct 19 14:03:41 2011 kiwamuUpdateGeneralvent prep : dichroic mirrorsStatus update on dichroic mirror:
 I got the specification sheet
of an aLIGO 2" dichroic mirror from
  
  7249   Wed Aug 22 15:47:34 2012 jamieSummaryGeneralvent prepartion for fast-track ventWe are discussing venting first thing next
week, with the goal of
diagnosing what's going on in the
  
  7255   Thu Aug 23 10:38:12 2012 SteveUpdateGeneralvent prepartion for fast-track vent

    

       
            
  
  7558   Tue Oct 16 16:46:20 2012 Vent Czar and CzarinaSummaryGeneralvent stuffWe're discussing the plan for the next
vent.  Now that we have all the tip-tilt
stuff in hand, we should get ready for the
  
  7560   Tue Oct 16 17:13:23 2012 CzarinaSummaryGeneralvent stuff - 4 pathsI see 4+
possible paths for us to take, in terms of
a possible vent in the next few weeks:
  
  66   Tue Nov 6 09:45:22 2007 steveSummarySUSvent sus trend The mc optics dragwippings were done by locking
optics by eq stops and rotating-moving
cages so access were good. This technic worked
 ventsustrend.jpg 
  2631   Tue Feb 23 13:37:04 2010 kiwamu and steveConfigurationVACventing the 40m vac envelopeKiwamu and Steve have started venting
the 40m vacuum envelope.
Preparation:
  
  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.
  
  9146   Fri Sep 20 16:37:30 2013 SteveUpdateVACvertex crane folding arm is back on

    

       
            
 bushingBottom.jpgfoldingI.jpgnoLoadGap.jpgtrollyway.jpgtrollySee.jpg 
  9139   Wed Sep 18 14:57:12 2013 SteveUpdateVACvertex crane folding arm removed The folding beam removed as shown.
Two man supporting it while I hammering it
out. Pin was dry and it gulled into supporting
 manPower.jpgrotatingHinge.jpgsupportingHinge.jpggullingPin.jpg 
  9111   Thu Sep 5 10:47:58 2013 SteveUpdateVACvertex crane folding issue 
 [Fred Goldbar, Mike Gerfen,
Dennis Coyne and Steve]
 5mmLess.jpg 
  9185   Wed Oct 2 14:25:39 2013 SteveUpdateVACvertex crane is still out of order 
The smoke alarms were turned off
and surrounding areas were covered with plastic.
 grindingIbeam.jpgcableMoved.jpg500lbs@end.jpg 
  9372   Wed Nov 13 08:46:03 2013 SteveUpdateVACvertex crane repair completed

    

       
            
  
  9117   Mon Sep 9 15:33:06 2013 SteveUpdateVACvertex crane repair is scheduled

    

       
            
  
  9173   Mon Sep 30 08:53:22 2013 SteveUpdateVACvertex crane repair schedule has changed

    

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


   
        
            
 P1060891.JPGP1060887.JPGP1060889.JPGP1060893.JPG 
  4165   Tue Jan 18 10:25:23 2011 steveUpdatePEMvertex crane work this weekThe crane people are here. The Vertex chambers
are covered with plastic. The PSL HEPAs will
be running on high during the day.
  
  3492   Tue Aug 31 02:50:45 2010 kiwamuUpdateCDSvertex suspensions controlled by the new CDSI plugged the
new CDS to the vertex suspensions.
  
  3699   Tue Oct 12 17:42:57 2010 yutaUpdateSUSvery first measurement of Q-values for MC1Background:
 Data aquisition system is fixed,
and now we can use the Dataviewer to measure
 MC1ringdown.png 
  3347   Mon Aug 2 10:26:15 2010 steveConfigurationVACvery slow pumpdown completed


   
        
            
 veryslowpd.jpg 
  7232   Mon Aug 20 09:49:01 2012 SteveUpdateCamerasvideo cameras in the DARK

    

       
            
 onlyOSEMs.jpgOSEMsand_IR.jpgOSEMsandOplev633.jpg 
  7215   Fri Aug 17 08:33:46 2012 SteveUpdateCamerasvideo cameras in the dark

    

       
            
 dark.jpg 
  7216   Fri Aug 17 09:34:27 2012 KojiUpdateCamerasvideo cameras in the darkI used the LED illuminations at ETMX and BS
yesterday for a tour.
I am afraid that I left them on.
  
  7217   Fri Aug 17 10:38:15 2012 SteveUpdateCamerasvideo cameras in the dark> I used the LED illuminations at ETMX and
BS yesterday for a tour.
> I am afraid that I left them on.
  
  7219   Fri Aug 17 14:45:51 2012 ranaUpdateCamerasvideo cameras in the dark The problem with the glow on the
ETMY face is due to the red light being scattered
off of the optical table from the HeNe laser
  
  7236   Mon Aug 20 18:10:44 2012 JenneUpdateCamerasvideo capture script copied over to real scripts directoryThe videocapture.py script is now in ...../scripts/general/
, along with the videoswitch. 
Also, there's a button gui on the
  
  10259   Wed Jul 23 10:39:18 2014 SteveUpdateCamerasvideo quad processors replacedQuad
processor 2 & 3 were replaced.
  
  2120   Mon Oct 19 18:14:28 2009 robUpdateCamerasvideo switch brokenThe Chameleon HB (by Knox) video switch
that we use for routing video signals into
the control room monitors is broken. 
  
  8036   Fri Feb 8 12:43:26 2013 yutaUpdateComputersvideocapture.py now supports movie capturingI updated /opt/rtcds/caltech/c1/scripts/general/videoscripts.py
so that it supports 
  
  8612   Wed May 22 00:42:13 2013 KojiSummarySUSviolin QWhile looking at the decay of the violin
mode of the PRM, I made a simple measurement
of the decay rate.
  
  1611   Wed May 20 01:53:48 2009 rob, peteUpdateLockingviolin mode filters in drstep_bangRecently the watch script was having difficulty
grabbing a lock for more than a few seconds. 
Rob discovered that the violin notch filters
  
  3875   Sat Nov 6 01:54:15 2010 FrankSummaryComputersvirus definition file update on laptop for dinocami took
some pictures with the dinocam this afternoon.
I used the laptop computer next to it using
  
  4447   Mon Mar 28 16:19:23 2011 steveFrogsPhotosvisithing 5th gradersSuresh is captivating his audience with
gravity waves on last Friday, March 25
 P1070475.JPG 
  3682   Fri Oct 8 17:36:16 2010 steveFrogsPhotosvisiting undergradsProf Alan Weistein guided the 24 student
through the 40m. His performance was rated
as  an enthusiastic 9.5
 P1060916.JPGP1060921.JPGP1060922.JPGP1060915.JPG 
  5434   Fri Sep 16 16:07:28 2011 steveUpdateSAFETYvisitors safety trainingPaul, Mirko and Katrin visiting grad students
received the 40m basic safety training.
 P1080241.JPG 
  12810   Tue Feb 7 19:14:59 2017 JohannesUpdateCDSvme crate backplane adapter board layoutAfter fighting with Altium for what seems
like an eternity I have finished putting
my vision of the vme crate backplane adapter
 vme_backplane.pdf 
  12781   Tue Jan 31 22:15:02 2017 JohannesUpdateCDSvme crate backplane adapter boardsI made a crude sketch for how Lydia and
I envision the connector situation on the
back of the vme crates to be solved. Essentially
 vme_backplane_conn_sketch.jpg 
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