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ID Date Author Type Category Subject Text Attachments
  428   Fri Apr 18 19:46:08 2008 ranaUpdateASScheck adaptiveI restarted the adaptive code today using
'startass' and 'upass'. 
I moved them into the scripts/ASS/ subdirectory.
 0052_xray_thm45.jpg 
  427   Fri Apr 18 16:48:13 2008 AndreyUpdatePEMRain collector of weather station
Today the rain collector of our weather station
was cleaned. As a result, we checked that
 DSC_0520--before.JPGDSC_0537--after.JPG 
  426   Fri Apr 18 16:27:04 2008 robUpdateSUSend station sus front-end bug fix[quote]installed and started new susEtmx.o
and susEtmy.o to fix a problem with ETMY
optical lever variables.[/quote]
  
  425   Fri Apr 18 16:02:58 2008 alexUpdateSUSend station sus front-end bug fixinstalled and started new susEtmx.o and susEtmy.o
to fix a problem with ETMY optical lever
variables.
  
  424   Thu Apr 17 20:17:37 2008 AndreyUpdatePEMTwo issues with our weather station
I encountered two difficulties working with
the "Weather Station".
  
  423   Thu Apr 17 15:00:59 2008 steveUpdateVACvac controller computer to be replacedNow that Rosalba is up and running someone
should step forward to volunteer for this
job.
  
  422   Wed Apr 16 21:11:12 2008 ranaSummaryDAQAA/AI Filters for the DAQ & FE systemsI used Foton to make up some new filters which
will be used all over the project in order
to downsample/upsample.
 DAQ_filters_080416.pdf 
  421   Wed Apr 16 10:20:01 2008 AndreyUpdateComputersRosalba and linux3[quote]There is a new computer in the control
room -- its called [B][COLOR=purple]Rosalba[/COLOR][/B],
in keeping with our naming convention. Its
  
  420   Wed Apr 16 09:47:35 2008 AndreySummaryPEMWeather Station The weather station is functional again.

The long ethernet Cat5 cable connecting 'WeatherLink'
 Weather-FullData_3hrs.pngWeather_Trend_15hrs.png 
  419   Tue Apr 15 18:44:25 2008 ranaConfigurationComputersRosalbaThere is a new computer in the control room
-- its called [B][COLOR=purple]Rosalba[/COLOR][/B],
in keeping with our naming convention. Its
  
  418   Tue Apr 8 09:08:54 2008 steveConfigurationPEMweather station disconnectedWe can not leave cables in the walkways and
go on vacation.
I disconnected the weather station from the
 toast.jpg 
  417   Mon Apr 7 18:58:49 2008 steveUpdateGeneralreflectivity of SS304The reflectivity of stainless steel 304 super
polished # 8 was measured the same way as
elog entry 409
 ss304s8refl.pdf 
  416   Mon Apr 7 16:42:56 2008 ranaUpdateComputerseLog intermittentPhil Ehrens restarted Dziban again this morning.
Looks like its still crashing each Monday
around 8 AM.
  
  414   Fri Apr 4 16:54:06 2008 AndreySummaryEnvironmentWeather station is fully alive
[COLOR=blue]After today's trip to the roof
of our building the weather station seems
 Work_on_the_Roof.pdf 
  413   Thu Apr 3 19:27:50 2008 AndreySummaryPhotosTour for prospective grad studentsLast Friday (March 28), there was a tour of
40-meter lab for prospective graduate students.
 Rana_Lecturing.pdf 
  412   Thu Apr 3 18:46:04 2008 AndreyConfigurationComputers"Network switch board" and "c1pem1 crate" were touched
While working with the weather station, I
did two things that potentially (with a very
 Computer_Rack.JPG 
  410   Thu Apr 3 18:33:17 2008 AndreySummaryEnvironmentStatus of Weather Station
During the last two days some things related
to weather station have been improved.
  
  409   Wed Apr 2 15:03:51 2008 steveUpdateGeneralreflectivity of black glass The reflectivity of black glass, shade 12
was supplied by Donald O'Shea
of Emerald Glass Inc., Westlake, OH 44145
 bg12refl.pdfbg12refsetup.pdf 
  408   Mon Mar 31 14:14:16 2008 robUpdateComputersc1susvme2 status[quote]c1susvme2 is getting worse and worse.
 it won't run for more than ~45 minutes without
fatally de-syncing.  for now I've turned
  
  407   Mon Mar 31 14:01:40 2008 jamieSummaryLSCSummary of DC readout PD non-linearity measurementsFrom March 21-26, I conducted some measurements
of the response non-linearity of some mock-up
DC readout photodetectors.  The detectors
 t21-r21_v_power.png 
  406   Fri Mar 28 16:18:18 2008 robUpdateComputersc1susvme2 statusc1susvme2 is getting worse and worse.  it
won't run for more than ~45 minutes without
fatally de-syncing.  for now I've turned
  
  405   Wed Mar 26 22:26:15 2008 JohnUpdateComputersc1susvmeI removed the fan and tweaked the timing cables
to see if they were the source of our problems.
I saw no effect. I'm leaving the fan off
  
  404   Wed Mar 26 13:41:53 2008 AndreyHowToSUSModification of ''C1DRIFT_MONITOR''I learned how to modify the drift-monitor
 in MEDM so that values on it change colors
from green to yellow to red depending how
  
  403   Tue Mar 25 16:34:47 2008 robUpdateComputersc1susvme2[quote][quote]c1susvme2 isn't behaving itself.
It keeps getting out of sync and/or giving
a red status light.
  
  402   Tue Mar 25 15:56:09 2008 JohnUpdateTreasureAssorted picturesSome pictures scavenged from the D40.  D40.pdf 
  401   Tue Mar 25 13:21:25 2008 AndreyUpdateComputersc1susvme2 is not behaving itself again    
  400   Tue Mar 25 10:44:24 2008 robUpdateComputersc1susvme2[quote]c1susvme2 isn't behaving itself. It
keeps getting out of sync and/or giving a
red status light.
  
  399   Mon Mar 24 20:15:03 2008 JohnSummaryComputersc1susvme2c1susvme2 isn't behaving itself. It keeps
getting out of sync and/or giving a red status
light.
  
  398   Mon Mar 24 13:03:54 2008 robUpdateElectronicsHP4195A is back

[quote]The swept sine output looks totally
  
  397   Sun Mar 23 10:42:54 2008 ValeraSummaryElectronicsRFAM of the RF stabilization box is measuredI reconstructed Tobin's setup to measure the
RFAM after the RF stabilization box in the
166 MHz modulation path.
 RFAM.zipamplitudenoise.pdf 
  396   Sun Mar 23 00:56:42 2008 JohnUpdateLSCMore on 3f We ended our last attempt at 3f locking concerned
about the beam size on PD6. I investigated
tonight. The beam was not obviously overfilling
  
  395   Sun Mar 23 00:43:08 2008 mevansHowToGeneralOnline Adaptive FilteringI wrote a short document about the OAF running
on the ASS.  Since there is no BURT setup,
I put a script in /cvs/cds/caltech/scripts
 OnlineAdaptiveFilter.pdf 
  394   Sat Mar 22 22:39:02 2008 mevansSummaryCDSDirect Form 2 filters are badHere I show a comparison between the filter
algorithm currently used in LIGO (Direct
Form II), and an alternative algorithm designed
 low-noise_filtering.pnglow-noise_zoom.pngFiltRT.zip 
  392   Fri Mar 21 23:17:47 2008 ranaConfigurationDMFseisBLRMS restartedI updated the seisBLRMS par file with the
new channel names of the accelerometers and
the seismometer and then
  
  391   Fri Mar 21 23:15:11 2008 ranaConfigurationPEMRanger SS-1: New SetupThe Ranger seismometer has been in a bad state.
Its output had been sent into a SR560 without
any termination.
  
  390   Fri Mar 21 17:01:21 2008 ranaConfigurationDMFLocale change on Mafalda & seisBLRMS restartEver since we moved the accelerometers to
be around the MC and changed their names,
the seisBLRMS
  
  389   Fri Mar 21 11:54:38 2008 robUpdateVACtp 2 failed[quote]Small turbo #2 is the forepump of the
maglev.
It failed last night, shut down the  maglev
  
  388   Fri Mar 21 09:02:03 2008 steveUpdateVACtp 2 failedSmall turbo #2 is the forepump of the maglev.
It failed last night, shut down the  maglev
and interlock closed V1
  
  387   Thu Mar 20 17:45:36 2008 ranaSummaryASSAdaptive Filtering in the ASS systemOver the past couple weeks we (Matt, Alex,
Rob, me) have worked on getting an adaptive
filter
  
  386   Thu Mar 20 16:06:27 2008 robConfigurationLSCLSC code change
I changed the LSC code again.  I noticed
that when turning off the LSC (e.g., going
  
  385   Thu Mar 20 15:28:20 2008 steveUpdateVACtp2 's drypump replacedThe fore pump of tp2 was replaced at fore
line pressure 998m Torr
  
  384   Mon Mar 17 18:30:48 2008 mevansConfigurationPEMAdaptive FilteringIt seems that adaptive filtering can achieve
results similar to those of the MISO FIR
Wiener (entry 369).  The adaptive code simulates
 mcacc_adaptive.png 
  383   Sun Mar 16 17:03:32 2008 robConfigurationCDSASS code change
I've updated the ass.mdl file in the directory:
  
  382   Fri Mar 14 16:56:03 2008 DmassBureaucracyComputersNew 40m control machine.I priced out a new control machine from Dell
and had Steve buy it.
  
  381   Fri Mar 14 15:52:07 2008 robConfigurationLSCLSC code change
I've edited the LSC code to send different
signals to the ASS box.  Now, instead of
  
  380   Fri Mar 14 15:06:24 2008 robUpdateComputer Scripts / Programsrouting PEM -> ASS -> SUS_MCL[quote]
on ASS RFM 1 has PEM signals at
  
  379   Fri Mar 14 14:59:51 2008 josephbConfigurationCamerasComparison between GC650 (CCD) and GC750 (CMOS) looking at ETMXAttached are images taken of ETMX while locked.

The first two are 300,000 microsecond exposure
 ETMX_z2_exp_300000_650.tiffETMX_z2_exp_300000_750.tiffETMX_z2_exp_30000_650.tiffETMX_z2_exp_30000_750.tiff 
  378   Fri Mar 14 12:06:29 2008 josephbConfigurationCamerasGC750 looking at ETMX while lockedThe GC750 (CMOS) is currently looking at the
front of ETMX.  Unfortunately, its being
routed through a 10Mbit connection (which
 ETMX_zoom_exp_10000_750.tiff 
  377   Thu Mar 13 18:20:29 2008 JohnUpdateGeneralNew Focus 4003 EOM 29.489MHzI measured the modulation index as a function
of drive power using an OSA. Agrees well
with spec of 0.2 rad/V.
 4003.jpg 
  376   Thu Mar 13 13:15:09 2008 aivanovUpdateComputer Scripts / Programsnew sfotware intall, backup filesNew:
op440m:40m>ls -alt /cvs/cds/caltech/target/c1susvme[12]/*.o
-rw-r--r--    1 controls staff       57920
  
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