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ID Datedown Author Type Category Subject Text Attachments
  2562   Tue Feb 2 18:15:47 2010 AlbertoUpdateelogElog restarted it Zach made me notice that the elog
had crashed earlier on this afternoon. 
I just restarted it with the restarting
  
  2561   Tue Feb 2 16:10:09 2010 steveUpdatePEMconstruction progress next doorCES construction is progressing. The 40m
suspensions are bearing well.
atm1, PEM  vs sus plots of 120
 pem120d.jpg02022010.JPG02022010b.JPG02022010c.JPGicewall.JPG 
  2560   Tue Feb 2 15:30:03 2010 AlbertoFrogsTreasureWild OatsFYI. Sitting on the top shelf of George
I found an opened jar of raspberry jam and
an opened jar of creamy peanut butter. Both
  
  2559   Tue Feb 2 13:14:09 2010 KojiHowToIOOAnatomy of New Focus Resonant EOMJoe let me use the resonant EOM for GigE
phase camera for a while.
Then, I immediately started to open
  
  2558   Tue Feb 2 10:38:30 2010 josephbUpdateComputersMegatron BO testLast night, I connected megatron's BO board
to the analog dewhitening board.  However,
I was unable to lock the y arm (although
  
  2557   Mon Feb 1 21:51:12 2010 SanjitUpdateAdaptive FilteringOAF details I tried some combination of PEM
channels and filters to improve OAF performance
at other frequencies, where we do not have
  
  2556   Mon Feb 1 18:33:10 2010 steveUpdateMOPAVe half the lazer!The 2W
NPRO from Valera arrived today and I haf
 inno2w.JPGinno2Wb.JPG 
  2555   Mon Feb 1 18:31:00 2010 SanjitUpdateAdaptive FilteringOAF details  I tried downsampling value
32 (instead of 16), to see if it has any
effect on OAF. Last week I encountered some
  
  2554   Fri Jan 29 13:14:49 2010 AlbertoUpdateABSLMeasurement running today at lunch time

    
        
  
  2553   Fri Jan 29 12:06:58 2010 AlbertoUpdateABSLMeasurement running today at lunch timeI just started a measuremtn that will be
running for the next hour or so. Please be
careful with the interferometer.
  
  2552   Thu Jan 28 09:17:32 2010 AlbertoUpdateLSC166 Modulation turned offI temporarily turned off the 166 modulation.   
  2551   Thu Jan 28 09:14:51 2010 AlbertoConfigurationComputersc1iscey, c1iscex, c1lsc, c1asc rebootedThis morning the LSC scripts wheren't running
properly. I had to reboot c1iscey, c1iscex,
c1lsc, c1asc .
  
  2550   Wed Jan 27 11:02:30 2010 AlbertoUpdateABSLPRC Cavity Length I fitted the data from scanning
the PRC by changing the beat frequency of
the auxiliary laser beam with the PSL beam.
The
 2010-01-21_PRCtransmissivityVsFit.png2010-01-21_PRCtransmissivity_EntireFreqRange_VsFit.png 
  2549   Tue Jan 26 20:18:32 2010 ranaConfigurationALARMop540m: alarms and BLRMS and StripTool restoredI turned the StripTool and ALARMS and BLRMS
back on on op540m. Looks like it has been
rebooted 5 days ago and no one turned these
  
  2548   Tue Jan 26 19:51:44 2010 Sanjit, ranaUpdateAdaptive FilteringOAF detailsWe turned on the OAF again to make sure
it works. We got it to work well with the
Ranger as well as the Guralp channels. The
 C1ASS_TOP.pngC1SUS_SRM_XYCOM1.pngUntitled.png 
  2547   Tue Jan 26 03:28:56 2010 ranaUpdateABSL166 MHz sideband turned off 
 You can turn the 166 off if
you want. MZ is unhappy after its turned
  
  2546   Mon Jan 25 16:46:33 2010 AlbertoUpdateABSL166 MHz sideband turned off

    
        
  
  2545   Mon Jan 25 16:30:37 2010 AlbertoUpdateABSL166 MHz sideband turned offI turned off the modulation at 166MHZ
becasue I don't need it if I'm only locking
the PRC.
  
  2544   Mon Jan 25 11:42:24 2010 josephbUpdateComputersMegatron and BO boardI was talking with Vladimir on Friday discussing
the Binary Output board, we looked at the
manual for it (Contec DO-32L-PE) and we realized
  
  2543   Fri Jan 22 14:40:49 2010 AlbertoUpdateABSLOvernight measurement

    
        
 2010-01-21_PRCtransmissivityVsModel.png 
  2542   Fri Jan 22 12:33:37 2010 josephb, alexUpdateComputersModified CDS_PARTS for Binary outputTurns out the CDSO32 part (representing
the Contec BO-32L-PE binary output) rquires
two inputs. One for the first 16 bits, and
  
  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
  
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