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ID Date Author Type Category Subject Text Attachments
  4897   Tue Jun 28 11:25:56 2011 AlastairBureaucracyComputersrestarted elogThe manual instructions on the 40m wiki
for restarting wouldn't work.  I killed
the process okay, but then I got an error
  
  4896   Tue Jun 28 10:11:13 2011 steveUpdateIOOPower incident on REFL11 and REFL55


   
        
            
  
  4895   Tue Jun 28 09:50:03 2011 SureshUpdateIOOWFS2 RF responseThe WFS2  Transimpedance has been
measured to determine if it also suffers
from the same 200MHz oscillations seen in
 WFS2_transimpedance.pdf 
  4894   Tue Jun 28 07:46:54 2011 SureshUpdateIOOPower incident on REFL11 and REFL55I measured the power incident on REFL11
and REFL55.  Steve was concerned that
it is too high.  If we consider this
  
  4893   Tue Jun 28 02:11:47 2011 JenneUpdateLockingLatest MICH noise budgetI have measured / calculated the latest
MICH noise budget.  It doesn't really
look all that stellar.
 MICH_noise_budget_as_of_28June2011.png 
  4892   Tue Jun 28 01:18:53 2011 ranaHowToSUSfree swing all opticsChris Wipf tells me that the EPICS Mutex
Jumbo Mumbo can be overcome by upgrading
our EPICS. We should get one of Jamie's assistants
  
  4891   Mon Jun 27 16:57:06 2011 steveUpdatePhotosHaixing is backHe has moved the levitation stuff for his
surf student to Jan's lab in W-Bridge.
 P1070914.JPG 
  4890   Mon Jun 27 10:04:29 2011 kiwamuSummaryGeneralWeekly report Summary
for the week ending June 26th. 
(Number
  
  4889   Mon Jun 27 00:23:11 2011 ranaUpdateCDSETMX SIDE problemThe slow readback of the ETMX side seems
to also have something flaky and bi-stable.
This is not an issue for damping, but it
 etmx-side.png 
  4888   Sun Jun 26 22:38:20 2011 ranaUpdateCDSMC1 LR dead for > 1 month; now revived temporarily Since the MC1 LRSEN channel is
not wasn't working, my input matrix
diagonalization hasn't worked today
 lrsen.pngbt.jpg 
  4887   Sun Jun 26 18:35:16 2011 ranaHowToSUSfree swing all opticsI used scripts/SUS/freeswing-all.csh to
give the optics a kick and then turn off
their watchdogs and collect the free swinging
 ringdown.png 
  4886   Sun Jun 26 16:17:22 2011 ranaUpdateCDSdiagonalization of MC input matrixI have updated the scripts/SUS/peakFit/  inMatDiag.pdf 
  4885   Sun Jun 26 16:02:12 2011 kiwamuUpdateIOOFriday MC activity[Rana / Kiwamu]
 Last Friday we did several
things for MC :
  
  4884   Sat Jun 25 06:09:38 2011 kiwamuUpdateLSCFriday lockingI
was able to measure the sensing matrix in
the PRMI configuration.
  
  4883   Sat Jun 25 04:40:43 2011 SureshUpdateASCWFS1 Transimpedance measurementWFS1 Transimpedance
The
attached plots show the location of the ~29.5
MHz pole and the 59 MHz notch for each quadrant
 WFS1_transimpedance.pdfP6250224.JPGP6250223.JPG 
  4882   Sat Jun 25 00:00:28 2011 SonaliUpdateGreen LockingFibre Coupling. What I did today.
1. I tried to align the IR input
beam by aligning the two mirrors, to couple
 Fibre_coupling_successful_24_june.jpgBeam_output_on_screen.jpg 
  4881   Fri Jun 24 22:35:23 2011 ranaConfigurationCDSdataviewer broken on pianosaWhen I try to get minute trend, it says
"word too long". 
  
  4880   Fri Jun 24 21:21:46 2011 SureshUpdatePSLPlaced labels on the zig-zag mirrors on PSL tableI put labels on the pair of beam steering
mirrors which are at the output end of the
PSL table.  I had changed one of these
  
  4879   Fri Jun 24 17:04:25 2011 NicoleUpdateSUSBasic Laser Safety Training; Moved TT Mirror; Horizontal Displacement Mech PlanToday Ishwita,
Sonali, and I completed basic laser safety
 CompiledParts.JPGHorizontalDispMount.JPG 
  4878   Fri Jun 24 10:38:01 2011 steveUpdateCamerasITMY camera gets fixedITMY gets new Tamron M118FM50 that has
improved close focusing. It is a small fixed
focal length camera so the video tube cover
  
  4877   Fri Jun 24 07:49:23 2011 steveUpdateABSLI-P curve of LWE with serial numbers

    

       
            
  
  4876   Fri Jun 24 07:40:23 2011 steveUpdateSUSPRM damping restoredThe PRM sus damping restored. C1:SUS-PRM_SDPD_VAR
is still 20-30mV and going up.  Side
gain  turned on. This pulled it down
  
  4875   Fri Jun 24 01:05:32 2011 NicoleSummarySUSTransfer Function Model Analysis Summary and New Posted LED V vs. I CurveI have updated   
  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 
  4873   Thu Jun 23 23:54:29 2011 KojiOmnistructureEnvironmentWe are savedSonali, Ishwita, and another anonymous
SURF saved the long-lasted water shortage
of the 40m
 IMG_0023.jpg 
  4872   Thu Jun 23 22:59:45 2011 kiwamuUpdateABSLI-P curve of LWE The  IP_curve_small.png 
  4871   Thu Jun 23 22:53:02 2011 kiwamuUpdateCDSran activateDQ.pyI found some DQ channels (e.g. SENSOE_UL
and etc.) for C1SUS haven't been activated,
so I ran activateDQ.py.
  
  4870   Thu Jun 23 22:39:34 2011 JenneUpdatePSLPMC found unlockedI found the PMC unlocked.  Koji noticed
that the FSS Slow Actuator Adjust was railed
at the positive end of the slider. 
  
  4869   Thu Jun 23 22:00:22 2011 JamieUpdateSUSburt snapshotI recorded a burt snapshot of these settings:
/opt/rtcds/caltech/c1/burt/autoburt/snapshots/2011/Jun/23/21:40
  
  4868   Thu Jun 23 21:35:46 2011 Jamie, Rana, KiwamuUpdateSUSFix calibration for sus sensorsWe have fixed the counts-to-micron (cts2um)
calibration for the suspension sensor filters.
 Each suspension sensor filter bank (e.g.
  
  4867   Thu Jun 23 21:34:21 2011 kiwamuUpdateCDSno foton on the CentOS machines For
some reasons foton's deafault sample rate
is NOT correct when it runs on the CentOS
  
  4866   Thu Jun 23 10:35:12 2011 steveUpdateComputersold computers leaving the labRod Luna picked up these computers for
Larry Wallace yesterday: Dell Inspiron 530,
Dell Dimension 4600 and SunBlade 1000
 P1070905.JPGP1070904.JPGblade1000.JPG 
  4865   Thu Jun 23 10:17:49 2011 steveUpdatePSLAP table is open to PSL againAccess to the north side of the PSL table
is blocked by the    8" beam
guard. This opens the beam pathways between
 P1070911.JPGP1070910.JPG 
  4864   Thu Jun 23 09:46:16 2011 ranaUpdateLSCPRMI locking : not stable enoughAll the suspensions are bad until you fix
them. But, ... there
  
  4863   Thu Jun 23 05:22:51 2011 kiwamuUpdateLSCPRMI locking : not stable enoughI was trying   
  4862   Thu Jun 23 02:12:12 2011 SonaliUpdateGreen Lockingwork schedule. June 22-June 24:
1.Coupling
light into fibre at the ETMY.
  
  4861   Wed Jun 22 21:36:41 2011 ranaSummaryGeneralJuly 2011 vent planI
put a paper Peet's bag with half of the Mini-Moos
into George. 
  
  4860   Wed Jun 22 18:51:47 2011 SureshUpdateIOOWFS2 RF responseI have shifted the Jenne laser back to
the small table where we do RF PD characterisation
(RFPD table).  I found several 25pin
  
  4859   Wed Jun 22 18:50:45 2011 JamieSummaryGeneralJuly 2011 vent planKiwamu and I have started to put together
a vent plan on the 40m wiki:
http://blue.ligo-wa.caltech.edu:8000/40m/vent/201107
  
  4858   Wed Jun 22 18:41:23 2011 NicoleSummarySUSBROKEN bread board circuit box and L9337 LED Current Versus Voltage CurveNOTE: The potentiometers on the  LED_I_vs_V_exp_plot.png 
  4857   Wed Jun 22 17:42:03 2011 kiwamuUpdateLSCsensing matrix measurementThe sensing
matrix was measured in the DRMI configuration
 sensemat.png 
  4856   Wed Jun 22 17:35:35 2011 IshwitaUpdateGeneralHot air stationThis is the new hot air station for the
40m lab.........
 
 P6220212.JPGP6220213.JPG 
  4855   Wed Jun 22 15:24:10 2011 kiwamuUpdateABSLgot a laser controller for LightWavePeter
King came over to the 40m with a laser controller
and gave it to us.
 DSC_3150.JPGDSC_3153.JPG 
  4854   Wed Jun 22 12:29:57 2011 IshwitaSummaryAdaptive FilteringWeekly summaryI started on the 16th with a very intense
lab tour & was fed with a large amount
of data (I can't guarantee that I remember
  
  4853   Wed Jun 22 12:24:44 2011 NicoleSummarySUSMidweek 2 Work SummaryI
have made my transfer function model
 P6220200.JPG 
  4852   Wed Jun 22 01:59:43 2011 SonaliUpdateGreen Lockingfibre-coupling of the IR beam  What
I did today.
1. Collimation of a beam.
 ETMY_june_21.jpgcollimation_700nm_21_june.JPG 
  4851   Tue Jun 21 23:29:41 2011 kiwamuUpdateLSCsensing matrix measurementI
am now measuring the sensing matrix in the
DRMI configuration.
  
  4850   Tue Jun 21 20:35:50 2011 kiwamuUpdateLSCa script to measure sensing matrixLast
night I was making a script which will measure
the sensing matrix using the realtime LOCKIN
 elog.png 
  4849   Tue Jun 21 19:54:33 2011 SureshUpdateGreen LockingLightWave NPRO power supply shifted to ETMY end tableThe Lightwave NPRO power supply which
is being shared between the AS table and
the ETMY table has been shifted back to the
  
  4848   Tue Jun 21 19:10:29 2011 SureshUpdateEnvironmentETMY end table[Suresh, Sonali]
There were small pieces of glass,
remnants
  
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