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ID Date Author Type Category Subjectup Text Attachments
  453   Sat Apr 26 11:21:15 2008 ajwOmnistructureComputersbackup of /cvs/cds restartedThe backup of /cvs/cds (which runs as a cron
job on fb40m; see /cvs/cds/caltech/scripts/backup/000README.txt)
  
  1854   Fri Aug 7 13:42:12 2009 ajwOmnistructureComputersbackup of frames restoredEver since July 22, the backup script that
runs on fb40m has failed to ssh to ldas-cit.ligo.caltech.edu
  
  77   Wed Nov 7 10:55:21 2007 ajwConfigurationComputersbackup script restartedFollowing the reboot of computers on 10/31/07,
the backup script required restart (which
unfortunately "can't" be automated because
  
  953   Wed Sep 17 12:58:12 2008 robUpdateLockingbad
Locking was pretty unsuccessful last night.
 All the subparts were locked (ARMs, PRM,
  
  1014   Wed Oct 1 02:54:03 2008 robUpdateLockingbad
Tried the spring-y side tonight with a discouraging
lack of progress.  There were several locks
  
  2141   Mon Oct 26 03:57:06 2009 robUpdateLockingbadLock acquisition has gone bad tonight. 
The initial stage works fine, up
through handing off control of CARM to MCL. 
  
  2152   Tue Oct 27 18:19:14 2009 robUpdateLockingbad

    
        
 MCF_issue.pngno_MCF_issue.png 
  2162   Thu Oct 29 21:51:07 2009 robUpdateLockingbad

    
        
 itsback.png 
  980   Mon Sep 22 21:30:06 2008 ranaConfigurationPSLbad FSSThe MC refl power was going up and the FSS
PC drive was so large that I had to turn
up the FSS
 DAQ.png 
  982   Mon Sep 22 22:24:19 2008 ranaConfigurationPSLbad FSS[quote]The MC refl power was going up and
the FSS PC drive was so large that I had
to turn up the FSS...[/quote]
  
  11329   Thu May 28 10:42:19 2015 SteveUpdatePEMbad Guralp X-cable


 Gurs180dXbad.pngswappedGurs.png 
  4937   Tue Jul 5 08:32:38 2011 steveUpdatePEMbad air quality in the labThe fireworks of yesterday showing up in
the lab. Pasadena out side air 6.6 million 
cfm for 0.3 micron particles  and 1.5
 badaq.jpgjuly4pem.jpg 
  3742   Tue Oct 19 21:10:27 2010 yutaUpdateCDSbad filter coefficients for every suspensions!(Koji, Yuta)

Summary:
  
  3173   Wed Jul 7 22:52:38 2010 rana, nancyConfigurationIOObad length control offset for the MCRana found out that a connection was bad
in the shown place, due to which the MEDM
screen was showing bad offset for length
 P7070251.jpgScreenshot.png 
  5521   Thu Sep 22 17:48:20 2011 kiwamuUpdateSUSbad oplev on ETMYIt
turned out the oplev controls on ETMY were
just bad.
 OLETMY.png 
  2975   Mon May 24 14:28:35 2010 kiwamuUpdateElectronicsbad power supply of a vme rackIn this morning I found daqawg didn't work.
After looking for the cause, I found
  
  2978   Tue May 25 07:22:59 2010 kiwamuUpdateElectronicsbad power supply of a vme rackNotes on May 25th
  
  2981   Tue May 25 10:06:09 2010 kiwamuUpdateElectronicsbad power supply of a vme rack I
got a VME crate from Peter's lab. It is already
  
  7356   Fri Sep 7 00:08:10 2012 janoschMetaphysics baffle clipping lossWith a curvature radius of about 57m
for the ETMs, flat ITMs at the beam waist,
and using 39m for the arm lengths, one finds
  
  7358   Fri Sep 7 09:37:20 2012 SteveUpdateCamerasbaffle plate for SOS

    

       
            
 IMG_1624.JPGIMG_1618.JPGIMG_1616.JPG 
  7375   Wed Sep 12 17:02:00 2012 SteveUpdateCamerasbaffle plate hole getting larger

    

       
            
 IMG_1631.JPGIMG_1628.JPG 
  620   Wed Jul 2 00:59:13 2008 MashaUpdateAuxiliary lockingbalanced detection, noise plots, progressProgress report submitted today(!). It is
on the 40m wiki page. Below is a figure of
some estimated noise sources.
 noise_sources.pdfbalancing_detectors.png 
  5062   Fri Jul 29 16:25:06 2011 kiwamuUpdateASCbeam axis and Y arm alignedLast night
I aligned the incident beam axis and the
  
  893   Thu Aug 28 18:56:14 2008 ranaConfigurationPSLbeam block distortedThere was a beam block after the Mach Zender.
Who or what put this there?
  
  896   Fri Aug 29 10:20:32 2008 YoichiConfigurationPSLbeam block distorted[quote]There was a beam block after the Mach
Zender. Who or what put this there?
  
  902   Fri Aug 29 16:35:18 2008 YoichiConfigurationPSLbeam block distorted[quote]There was a beam block after the Mach
Zender. Who or what put this there?
  
  9420   Thu Nov 21 10:24:50 2013 KojiUpdateSUSbeam dumpsYou don't need the fourth glass piece on
the diamond beam dump.
  
  9448   Fri Dec 6 15:57:41 2013 SteveUpdateIOObeam dumps for PSL pointing monitoring

    

       
            
 IOO_QPD_MONS.jpgPointingTrend23d.png 
  9974   Tue May 20 11:48:22 2014 SteveUpdateSUSbeam dumps added to ETMX_ISCTAnodized aluminum dumps replaced by 6 razor
beam dumps.
Two more razor beam dumps added this
 razorbeamdumps.jpgrazorbeamdumpss.jpg 
  9325   Fri Nov 1 09:45:32 2013 SteveUpdateIOObeam dumps to be find

    

       
            
 razor_beam_dumps.jpg 
  7801   Sun Dec 9 01:21:51 2012 DenUpdateLSCbeam inside DRMI is clipping on PR3 Tip-Tilt

    

       
            
 6x 
  7802   Sun Dec 9 17:51:53 2012 ranaUpdateLSCbeam inside DRMI is clipping on PR3 Tip-Tilt 
 Some explanation of how you
define power buildup please. Also some plots
  
  7803   Mon Dec 10 03:02:03 2012 DenUpdateLSCbeam inside DRMI is clipping on PR3 Tip-Tilt

    

       
            
 PRCL_LOCK.png 
  7804   Mon Dec 10 10:13:41 2012 DenUpdateLSCbeam inside DRMI is clipping on PR3 Tip-Tilt 
That's OK, but its best to use standard
notation. The power recycling gain is defined
  
  7806   Mon Dec 10 22:34:34 2012 DenUpdateLSCbeam inside DRMI is clipping on PR3 Tip-Tilt

    

       
            
 PR2.bmpPRM_LOCK.bmpITMY.pngITMX.png 
  7820   Thu Dec 13 03:20:48 2012 DenUpdateLSCbeam inside DRMI is clipping on PR3 Tip-Tilt

    

       
            
 PR2_ITMX.pngPR2_ITMY.pngPR3_LOCK.png 
  4039   Thu Dec 9 23:17:47 2010 kiwamuUpdateSUSbeam pointing has been done[Koji, Osamu and Kiwamu]
 We
  
  4040   Fri Dec 10 09:58:57 2010 AidanUpdateSUSbeam pointing has been doneGood news. I feel multi-chromatic-locking
success is just around the corner.
By the way, there's a new presentation
  
  4874   Fri Jun 24 00:13:24 2011 kiwamuUpdateABSLbeam profile measurement of LWEThe
beam profile of the LWE (LightWave Electronics)
NPRO was measured.
 beam_profile.png 
  3570   Mon Sep 13 22:51:07 2010 tara,valeraConfigurationPSLbeam scan for RCAVOn Friday, Valera and I calculated the
modematching for reference cavity from AOM.
We scan the beam profile where the
 2010_09_10_w.mat 
  7527   Thu Oct 11 11:20:05 2012 janoschUpdateGeneralbeam shape simulation, PRCI started to create a Finesse model of
the PRC cavity. We have the phase maps for
the PRC and the two ITMs. I could not find
  
  4110   Wed Jan 5 03:06:02 2011 kiwamuUpdateIOObeam spots on MC mirrorsI checked
the spot positions on MC1 and MC3 by running
  
  528   Tue Jun 10 08:37:18 2008 steveUpdatePSLbeam trap is being testedHigh power beam trap is being tested just
west of FSS area on psl enclosure.
 trapss3w.png 
  6648   Thu May 17 15:31:22 2012 steveUpdateGeneralbeam trap posts & clamps for vacuum Aluminum posts and SS clamps for
green glass traps in vacuum will be out of
the shops by June 6, 2012 the latest
 05161201.PDF05151201.PDF 
  5047   Wed Jul 27 15:38:01 2011 steveUpdateVACbeam traps for vacuumWe have cleaned, baked, rga scaned traps
for vacuum. Thorlabs LB1 on 1" OD ss
posts and forks. The effective surface area
 P1080095.JPG 
  8087   Fri Feb 15 09:58:49 2013 SteveUpdateGeneralbeam traps ready to be installedBlack-green glass traps are ready for light
in vacuum. I can assemble more if needed.
These three sizes are available.
 IMG_0083.JPGIMG_0084.JPG 
  8089   Fri Feb 15 16:09:19 2013 KojiUpdateGeneralbeam traps ready to be installedFor the hexagonal one, insert one of the
glass plate only half. Use a 1"x.5"
piece if exists.
 HexBeamDump.pdfDiamondBeamDump2in.pdf 
  5872   Fri Nov 11 12:32:45 2011 KatrinUpdateGreen Lockingbeat PSL - YARM laser [Suresh, Katrin]
Measured frequency fluctuation of
the beat between PSL and YARM lasers.
 beat_psl_y.png 
  4211   Thu Jan 27 11:04:27 2011 KojiUpdateGreen Lockingbeat freq scanExperiment in the night of Jan 26.
o The arm was locked for the IR beam
and was aligned for it.
 arm_scan.pdfarm_cav_scan3.png110126_ALS_inloop.pdf 
  4268   Thu Feb 10 05:06:35 2011 kiwamuUpdateGreen Lockingbeat noise : a little bit better, and 1Hz peak from amplitude noise coupling I
repeated the same measurement as that Koji
 Screen_shot_2011-02-10_at_4.01.43.pngScreen_shot_2011-02-10_at_4.52.13.png 
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