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ID Date Author Type Category Subject Text Attachments
  3136   Tue Jun 29 14:19:44 2010 josephbUpdateCDSDaily Downs Update (Part 2)I picked up the ribbon cable connectors
from Jay.  It looks like we'll have
to make the new cables for connecting the
  
  3135   Tue Jun 29 14:16:35 2010 KojiConfigurationSAFETYBack in LASER HAZARD mode. The insects and the laser trouble... Strange
coincidences with LHO surprised me, but now
I have been relieved.
  
  3134   Tue Jun 29 12:08:43 2010 josephbUpdateCDSDaily Downs UpdateI talked with Rolf, and asked if we were
using Megatron for IO.  The gist boiled
down to we (the 40m) needed to use it for
  
  3133   Tue Jun 29 11:48:17 2010 JenneConfigurationSAFETYBack in LASER HAZARD mode. [Steve, Kiwamu, Jenne]
The 40m is now
  
  3132   Tue Jun 29 10:20:58 2010 ranaUpdateMOPAMOPA is NOT deadNot dead. It just had a HT fault. You can
tell by reading the front panel. Cycling
the power usually fixes this.
  
  3131   Tue Jun 29 08:55:18 2010 JenneFrogsEnvironmentWe're being attacked!   Infested_InvasionOfKillerBugs.jpgAntInvasion_small.jpg 
  3130   Tue Jun 29 08:41:06 2010 steveUpdateMOPAMOPA is deadI found the laser dead this morning.
The crane people are here to unjam
it.
 laserisdead.jpg 
  3129   Mon Jun 28 21:26:05 2010 ranaSummaryCDSCDS adapter board notesThose drawings are an OK start, but its
obvious that things have changed at the 40m
since 2002. We cannot rely on these drawings
  
  3128   Mon Jun 28 13:40:53 2010 josephb, AlexUpdateCDSChanges added to CDS SVN, new checkout, new features, some changes madeLast week Alex merged in the changes I
had made to the local 40m copy of the Real
Time Code Generator.  These were to
  
  3127   Mon Jun 28 12:48:04 2010 josephbSummaryCDSCDS adapter board notesThe following is according to the drawing
by Ben Abbott found at http://www.ligo.caltech.edu/~babbott/40m_sus_wiring.pdf
This
applies to SUS:
  
  3126   Mon Jun 28 11:27:08 2010 MeganUpdateElectronicsMarconi Phase NoiseUsing the three Marconis in 40m at 11.1
MHz, the Three Cornered Hat technique was
used to find the individual noise of each
 IndividualNoise11100kHzAllRanges.jpgIndividualNoise11100kHzSeparate.jpgDirectvsIndirectNoise.jpgFG12Noise.jpg 
  3125   Sat Jun 26 21:13:19 2010 ranaSummaryComputer Scripts / ProgramsCOMSOL 4.0 InstallationI've
installed COMSOL 4.0 for 32/64 bit Linux
in /cvs/cds/caltech/apps/linux64/COMSOL40/
It
  
  3124   Sat Jun 26 20:16:44 2010 josephbUpdateCDSNew checkout of RCG from SVN and changes madeORPHAN ENTRY FOUND ON ROSALBA:::::::::::::::::::::::::::::::::::::::::::::::::::>>>>>>>>>>>>>>>>>>>>>>>>>>>>>   
  3123   Sat Jun 26 05:02:04 2010 ranaHowToSVNSVN woes


   
        
            
  
  3122   Fri Jun 25 20:32:30 2010 kiwamuUpdateGreen Lockinggreen power on the PSL tableThe power
of the green beam generated on the PSL table
 optical_power.png 
  3121   Fri Jun 25 15:22:45 2010 JenneOmnistructureSAFETYNo entry to the 40m LVEA until further notice!                                                                                                
           
  
  3120   Fri Jun 25 12:09:27 2010 kiwamuUpdateComputersGPIB controller of HP8591EI've
just stolen a GPIB controller, an yellow
small box, from the spectrum analyzer HP8591E.
  
  3119   Fri Jun 25 08:10:23 2010 josephbUpdateCDSDaily Downs UpdateYesterday afternoon I went to downs and
acquired the following materials:
2 100 ft long blue fibers, for use
  
  3118   Fri Jun 25 01:28:33 2010 DmassHowToSVNSVN woesI am trying to get an actual complete install
of the 40m svn on my machine. It keeps stopping
at the same point:
  
  3117   Thu Jun 24 18:47:26 2010 FrankDAQIOOVME crate rebooted we had
to reboot
the IOO VME crate right before lunch
  
  3116   Thu Jun 24 16:59:24 2010 josephbUpdateVACFinished restoring the access connector and door[Jenne,  Kiwamu, Steve, Sharmila,
Katherine, Joe]
We finished bolting the door on the
  
  3115   Thu Jun 24 13:02:59 2010 JenneUpdateComputersSome lunchtime reboots[Jenne, Megan, Frank]
We rebooted c1iovme, c1susvme1, and
c1susvme2 during lunch.  Frank is going
  
  3114   Thu Jun 24 11:16:32 2010 Sharmila, Rana and KiwamuHowToVACInspection of the BS (sorry, no sounds)    
  3113   Thu Jun 24 06:49:29 2010 AidanUpdateGreen Lockinga channel for PPKTP temperatureIs this a setpoint temperature that we
can change by writing to the channel or is
it a readout of the actual temperature of
  
  3112   Thu Jun 24 01:02:34 2010 Sharmilla, Rana and KiwamuUpdateGreen Lockinga channel for PPKTP temperatureWe added
a channel on c1psl in order to monitor the
  
  3111   Wed Jun 23 23:55:03 2010 Katharine, Sharmila, Rana, Steve and KiwamuUpdateVACwiped the BSSome unused
optics in the BS chamber were removed. 
  
  3110   Wed Jun 23 23:08:30 2010 ranaConfigurationPSLFSS SLOWDC should be ~-4.0 
  
  3109   Wed Jun 23 18:05:00 2010 KojiConfigurationPSLFSS SLOWDC should be ~-4.0FSS SLOWDC slider is at around 0.

Please someone relock this at ~-4.0 to exploit
 C1PSL_FSS.png 
  3108   Wed Jun 23 17:48:16 2010 steveUpdateMOPAlaser head tempThe laser chiller temp is fluctuating and
the power output is decreasing. See 120 days
plot.
 htemp120d.jpg 
  3107   Wed Jun 23 15:33:42 2010 josephbUpdateCDSDaily Downs UpdateI visited downs and announced that I would
be showing up again until all the 40m hardware
is delivered. 
  
  3106   Wed Jun 23 15:15:53 2010 josephbSummaryComputers40m computer security issue from last night and this morningThe following is not 100% accurate, but
represents my understanding of the events
currently.  I'm trying to get a full
  
  3105   Wed Jun 23 12:52:35 2010 kiwamuUpdatePhotosBS chamber before cleaning up    
  3104   Wed Jun 23 12:47:43 2010 JenneUpdateSUSPRM, SRM ready for vacuumI fitzed
with the PRM and SRM briefly, and I now believe
 SRM_pitch_offset_small.jpg 
  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
  
  3102   Wed Jun 23 12:28:34 2010 RazibSummaryPhase CameraWeeekly SummaryThis past week I have completed the following
tasks:
 
 trigger-box_circuit.pngtest1.png 
  3101   Wed Jun 23 11:31:12 2010 nancyUpdateWIKI-40M UpdateWeekly UpdateThis week I attended a whole lot of orientations,
lectures, and meetings related to SURF. Done
with general and laser safety training.
  
  3100   Wed Jun 23 11:25:14 2010 Katharine and SharmilaUpdateWIKI-40M UpdateMaglevWeekly update

Lab work
  
  3099   Tue Jun 22 20:07:08 2010 JenneUpdate40m UpgradingFirst attempt at Tip Tilt hanging[Jenne, Steve, Nancy, Gopal]
We
made an attempt at hanging some of the Tip
 2_ECDs_small.jpgMagnetStickingOutFar_small.jpg 
  3098   Tue Jun 22 18:56:32 2010 JenneUpdateEnvironmentBad placement of recycling binSomeone has been moving the big blue recycling
bin in front of the laser-chiller-chiller
(the air conditioner in the control room). 
 BlockingLaserChillerChiller_small.jpg 
  3097   Tue Jun 22 13:38:13 2010 KojiUpdatePhase CameraCurrent phase camera setup. Seeing Acoustic beat1. In terms of the AOM:

How much beam power is  incident
  
  3096   Tue Jun 22 09:45:21 2010 Aidan, Joe, RazibUpdatePhase CameraCurrent phase camera setup. Seeing Acoustic beat We've set up a preliminary test bed
for the phase camera. It simply uses a HeNe
that is split into two beams. One is frequency
 2010-06-22_Phase_camera_layout_version_1.pdf 
  3095   Mon Jun 21 20:11:21 2010 KojiUpdatePhotosInspection of Magnets for the TTsWere these magnets chipped before the Ni
plating?
  
  3094   Mon Jun 21 18:01:34 2010 JenneUpdate40m UpgradingSRM, PRM hung, magnets inspected[Jenne, Kiwamu, Rana, Eric Gustafson]
The SRM and PRM have been re-hung,
and are ready for installation into the chambers. 
  
  3093   Mon Jun 21 14:21:34 2010 Jenne, KiwamuUpdatePhotosInspection of Magnets for the TTs    
  3092   Sun Jun 20 18:28:25 2010 kiwamuUpdateGreen LockingRe: lock with PDH boxOn the wiki I summarized about the modification
of the PDH box which is currently running
on the end PDH locking. 
  
  3091   Sun Jun 20 16:07:23 2010 KojiSummaryCOCCalibration of the metrology lab interferometerKiwamu and Koji
Summary
We have visited GariLynn's
 ring1_inner_centering.pdfring1_outer_centering.pdfSRMU01_pic.png 
  3090   Sat Jun 19 17:31:48 2010 ranaDAQCDSExcess Noise in C1:IOO-MC_DRUM1 fixed by rebootI was getting an excess noise in the C1:IOO-MC_DRUM1
channel - it was a flat spectrum of 10 cts/rHz
  
  3089   Fri Jun 18 22:12:29 2010 AlbertoUpdateIOOMode Profile after Mode Matching Telescope (Round 2)GJ   
  3088   Fri Jun 18 21:45:39 2010 kiwamuUpdateIOOMode Profile after Mode Matching Telescope (Round 2)    
      
 MMT20100618_edit.pngnewIOO_overlap_edit.png 
  3087   Fri Jun 18 15:07:26 2010 AlbertoUpdateLSCShort Cavity Length Adjustments


   
        
            
  
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