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IDdown Date Author Type Category Subject Text Attachments
  2541   Fri Jan 22 02:54:06 2010 AlbertoUpdateABSLOvernight measurementI'm leaving a measurement running overnight.
It should be done in about one hour.
Tomorrow morning, If you need to
  
  2540   Thu Jan 21 17:23:30 2010 josephb,alex,kojiHowToComputersRCG code fixesIn order to see the Contec DO-32L-PE
Digital output PCIe card with the new
controls, we had to add the CDO32 part to
 CDO32.png 
  2539   Thu Jan 21 15:16:16 2010 josephb, kojiSummaryComputersMegatron used to lock Y armWe
succeeded in having a stable single arm (Y)
lock using Megatron to replace c1iscey.
Now
  
  2538   Thu Jan 21 11:08:30 2010 kiwamu, steveUpdateVACDry Pump replacement This morning I and Steve replaced 
the dry fore pump of TP3, which is located
under the y-arm.
 DSCN0428.JPG 
  2536   Thu Jan 21 10:31:13 2010 KojiUpdateABSLSome preliminary results from measuring PRC's transmissivity for an amplitude modulated beamNice
and interesting plot.
  
  2535   Thu Jan 21 10:09:27 2010 KojiSummaryIOOPhotos of the optical tablesI made a wiki page dedicated for the photos
of the optical tables.
The current layouts were uploaded.
  
  2534   Wed Jan 20 20:11:56 2010 AlbertoUpdateABSLSome preliminary results from measuring PRC's transmissivity for an amplitude modulated beamHere I'm posting a plot showing a
set of measurements that I made in the past
few days to determine the absolute length
 2010-01-19_PRCtransmissivityVsModel.png 
  2533   Tue Jan 19 23:26:07 2010 kiwamuUpdateElectronicsRe:Re: triple resonant circuit for EOM


   
        
            
 matching_edit.pngeq1.pngdesigned_response.png 
  2532   Tue Jan 19 16:21:18 2010 AlbertoUpdateABSLWatchdogs not working and then fixedThis afternoon the watchdogs stopped working:
they didn't trip when the suspension positions
crossed the threshold values.
  
  2531   Tue Jan 19 12:54:39 2010 AlbertoUpdateABSLMeasurement in progressA measurement will be running for the next
hour. Please be careful.
  
  2530   Tue Jan 19 10:30:29 2010 josephbUpdateComputersBoot fest to restart the computer and c1iscey not responding.

    
        
  
  2529   Tue Jan 19 03:27:47 2010 kiwamuUpdateElectronicsRe: triple resonant circuit for EOM1. You are right, the gain for the
single resonant circuit was about 9.3 in
my measurement.
  
  2528   Tue Jan 19 03:20:28 2010 KojiUpdateElectronicsdesign complete --- triple resonant circuit for EOM ---First I was confused, but now I think I
understood.
My confusion: 
  
  2527   Tue Jan 19 03:04:14 2010 KojiUpdateElectronicstriple resonant circuit for EOMSelf-follow:
I got the answer of Q3 from the follow-up
entry.
  
  2526   Tue Jan 19 02:40:38 2010 KojiUpdateElectronicstriple resonant circuit for EOMThe design looks very good. I have some
questions.
1. As far as I remember, you've
  
  2525   Tue Jan 19 02:39:57 2010 kiwamuUpdateElectronicsdesign complete --- triple resonant circuit for EOM ---The design
of the triple resonant circuit has been fixed.
 realistic.pngscaling.png 
  2524   Tue Jan 19 00:10:44 2010 ranaUpdateElectronicstriple resonant circuit for EOMVery cool.     
  2523   Mon Jan 18 23:44:19 2010 kiwamuUpdateElectronicstriple resonant circuit for EOMThe first
design of the triple resonant EOM circuit
 whole_circuit.pngdesigned_circuit.png 
  2522   Mon Jan 18 20:58:40 2010 AlbertoUpdateABSLMeasurement in progress

    
        
  
  2521   Mon Jan 18 18:34:01 2010 AlbertoUpdateABSLMeasurement in progressI started a long measurement of the PRC's
transmissivity. I'm leaving the lab and I'm
going to be back at about 8 tonight. Please
  
  2520   Mon Jan 18 09:44:36 2010 Alberto, BobOmnistructureEnvironmentNo rain water infiltrations so farIt has rained continuously for the last
24 hours. Bob walked through the lab looking
for possible water infiltrations. The floor
  
  2519   Sun Jan 17 19:18:55 2010 AlbertoUpdateComputersBoot fest to restart the computer and c1iscey not responding.Thi afternoon I found that the RFM network
in trouble. The frontends sync counters had
railed to 16384 counts and some of the computers
  
  2518   Sun Jan 17 05:22:42 2010 ranaConfigurationComputersELOG script changeWith Dave Barker's help, I changed the
elog startup script. Instead of running as
a Daemon with the -D option,
  
  2517   Fri Jan 15 18:53:05 2010 josephb,peter,kojiUpdateComputersAttempted locking with Megatron replacing ETMY front endThis afternoon we attempted to lock the
interferometer using Megatron insteady of
the usual ETMY front end.
  
  2516   Fri Jan 15 12:04:26 2010 Sanjit, mevansUpdateAdaptive FilteringCanceling noise again! 
OAF is successfully canceling noise
again, thanks to Matt!
 OAF_15JAN2010.png 
  2515   Fri Jan 15 11:21:05 2010 josephbUpdateComputersMegatron and tst model for ETMYThe tst model wasn't compiling this morning
due to some incorrect lines in the RfmIOfloat.pm
file located in /home/controls/cds/advLIgo/src/epics/util/lib
  
  2514   Thu Jan 14 11:44:06 2010 josephbSummaryComputersMemory locations for TST model for ITMYThe main communications data structure
is RFM_FE_COMMS, from the rts/src/include/iscNetDsc40m.h
file.  The following comments regard
  
  2513   Wed Jan 13 12:03:00 2010 AlbertoUpdateABSLMeasurement now running. Please be carefulAt the moment I'm running a measurement
on the PRC and I'm planning to leave it going
for the time we'll be at the 40m meeting.
  
  2512   Wed Jan 13 12:01:06 2010 AlbertoUpdateComputersc1dcuepics, c1lsc rebooted this morningSince last night the alignemtn scripts
couldn't work.
c1lsc wasn't working
properly because attempts to lock the X arm
  
  2511   Tue Jan 12 14:28:01 2010 steveSummaryEnvironmentlab temp of 7 years

    
        
 labtemp7y.png 
  2510   Tue Jan 12 13:24:50 2010 HaixingUpdateSUSQuadrant Magnetic LevitationI have tried to make the quadrant magnetic
levitation work but unfortunately I did
not succeed. During the experiment, I
 schmematic.png 
  2509   Tue Jan 12 11:34:26 2010 josephbUpdatePEMAllegra dataviewer

    
        
  
  2508   Tue Jan 12 09:37:05 2010 AlbertoUpdateABSLIFO availableI finished measuring the AbsL for this
morning. The IFO is again available.
Please don't mess up with the
  
  2507   Tue Jan 12 09:14:52 2010 steveSummaryGeneralScattering Measurements of 35W Beam Dumps 
 What was the power level, polarization
and beam size at beam trap?
  
  2506   Mon Jan 11 21:49:17 2010 JenneUpdateABSLMeasurement running

    
        
  
  2505   Mon Jan 11 19:36:13 2010 AlbertoUpdateABSLMeasurement runningLeaving for dinner. Back in ~1hr.
I left a measurement running. Please
don't interfere with it till I'm back. Thanks.
  
  2504   Mon Jan 11 16:59:14 2010 AlbertoUpdateABSLInterferometer BusyI'm currently running a measurement on
the PRC.
Please don't interfere with the IFO
  
  2503   Mon Jan 11 14:16:59 2010 JenneUpdatePEMGur2 cables reconnected to the PEM ADCUSo that we can use both Guralps for Adaptive
stuff, and so that I can look at the differential
ground motion spectra, I've reconnected the
  
  2502   Mon Jan 11 11:06:53 2010 AlbertoUpdateABSLMeasurement running


   
        
            
  
  2501   Mon Jan 11 10:01:06 2010 AlbertoOmnistructureEnvironmentLab Thermostats Temperature Lowered by 1 deg F

    
        
  
  2500   Mon Jan 11 09:18:44 2010 AlbertoUpdateGeneralMeasurement runningI'm working on the AbsL experiment. A measurement
which involved the PRC locked is running
at the moment.
  
  2499   Sun Jan 10 23:22:56 2010 JenneSummaryGeneralScattering Measurements of 35W Beam DumpsOn Friday, Rana and I measured the scatter coming from  P1090014_copy.JPGScatterometerSetup.png 
  2498   Sun Jan 10 17:15:25 2010 KojiUpdateSUStransfer function measurement of the quadrant maglev circuit 1. Yes. That is the bad. You should eventually
replace the BNCs to the isolated ones.
2. OK. I like to emphasize again
  
  2497   Sun Jan 10 16:50:34 2010 HaixingUpdateSUStransfer function measurement of the quadrant maglev circuit

    
        
  
  2496   Sun Jan 10 16:05:51 2010 AlbertoOmnistructureEnvironmentLab Thermostats Temperature Lowered by 1 deg FRana noticed that recently the temperature
inside the lab has been a little bit too
high. That might be causing some 'unease'
  
  2495   Sun Jan 10 15:47:26 2010 KojiUpdateSUStransfer function measurement of the quadrant maglev circuit 1. Why do all of the BNCs have no GND connection?
Each should have the individual cables to
the ground. Each signal line and the corresponding
  
  2494   Sun Jan 10 13:32:09 2010 HaixingUpdateSUStransfer function measurement of the quadrant maglev circuit I have assembled the circuit and the
control box for the quadrant magnetic
levitation yesterday. The final setup
 6x 
  2493   Sat Jan 9 15:02:01 2010 AlbertoUpdateABSLPRC scanningI scanned the PRC in the frequency range
of 30-60 MHz, untill the PLL lost lock. But
everything is working fine.
The
  
  2492   Sat Jan 9 11:07:30 2010 AlbertoUpdateLSCProblems trying to lock the arms

    
        
  
  2491   Sat Jan 9 09:47:03 2010 AlbertoUpdateLSCProblems trying to lock the armsThis morning I've been having problems
in trying to lock the X arm.
The X arm's filter FM6 in the LSC
  
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