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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Type Category Subjectup Text Attachments
  11728   Wed Nov 4 08:04:53 2015 SteveUpdatesafetysafety trainingYutaro Enamoto, visiting graduate student
of Seiji received 40m specific basic safety
training.
 Yutaro.jpg 
  12311   Tue Jul 19 15:16:43 2016 SteveUpdatesafetysafety trainingOur new graduate student Lydia received
40m specific safety training.
  
  12479   Fri Sep 9 11:24:15 2016 SteveUpdatesafetysafety trainingVisiting
graduate student Teng Zhang from Glasglow
  
  12565   Mon Oct 17 14:48:12 2016 SteveUpdatesafetysafety trainingAshley Fowler  "high shool"
student received basic 40m safety training
and Lydia is her guarding angle.
  
  12970   Thu May 4 08:00:54 2017 SteveUpdatesafetysafety trainingFreshmen Rebecca Zhang as " work study
undergrad "  received 40m specific
basic safety training yesterday.
  
  12994   Tue May 16 16:16:16 2017 SteveUpdatesafetysafety training Early surfs of India Jigyasa and
Kaustubh received basic 40m specific safety
traning.
 surfs2017.jpg 
  13144   Tue Jul 25 14:27:19 2017 SteveUpdatesafetysafety trainingKira Dubrovina and Naomi Wharton received
40m specific basic safety training.
 safety.jpg 
  13406   Mon Oct 30 08:08:06 2017 SteveUpdatesafetysafety trainingUdit Kahndelwal received 40m specific basic
safety traning on Friday, Oct. 27
  
  14263   Thu Oct 25 16:17:14 2018 SteveUpdatesafetysafety trainingChub Osthelder
received 40m specific basic safety traning
today.
  
  488   Tue May 20 09:28:42 2008 steveBureaucracySAFETYsafety traning for 40mTara Chalernsongsak, new gradstudent for K.
Libbrecht was introduced to the basics of
the 40m operations.
  
  1273   Thu Feb 5 09:12:29 2009 steveBureaucracySAFETYsafety updates & fire alarm testThe fire alarm test was completed at 13:30
yesterday.
 
  
  1676   Tue Jun 16 03:43:04 2009 robUpdateLockingsame troublesLock is still being lost, right at the
end of the process when trying to reduce
the CARM offset to zero.
  
  6188   Thu Jan 12 07:44:21 2012 steveUpdateSUSsapphire wire standoff quote
On Tue, Dec 20, 2011 at 11:37 PM,
Rana Adhikari wrote:
 standoff.PDF 
  13747   Wed Apr 11 10:47:26 2018 SteveUpdateSUSsatellite amps labeledSatellite amplifiers labeled with date.
Old labels left on.
 DSC00912.JPG 
  8719   Wed Jun 19 00:46:06 2013 JenneUpdateSUSsave/restore alignment scripts now also work for TTs, fixed a bugI have done a quick update of the IFO_ALIGN
screen's save and restore scripts, so that
we can now also save, restore, and view
  
  6819   Fri Jun 15 00:50:54 2012 yutaUpdateGreen Lockingscanned Y arm for 5FSRI scanned Y arm for 5FSR (below).
I could done this after I put a whitening
filter.
 YarmScan20120614_2.png 
  6820   Fri Jun 15 01:53:05 2012 KojiUpdateGreen Lockingscanned Y arm for 5FSRInteresting.
It seems for me that there is a dependence
of the noisiness as the beat frequency is
  
  6823   Sat Jun 16 12:03:41 2012 ZachUpdateGreen Lockingscanned Y arm for 5FSRIs that time stamp really correct?
I wanted to look at the signal closely to
see if I could get any feeling for why it
  
  6824   Sat Jun 16 13:01:17 2012 yutaUpdateGreen Lockingscanned Y arm for 5FSR

    

       
            
 YarmScanDV.png 
  450   Fri Apr 25 15:44:21 2008 steveUpdatePSLscattering measurmentsIn pursuit of a low back scattering, high
power beam dump we looked at materials such:
polished copper, polished aluminum, diamond
 6x 
  5046   Wed Jul 27 15:18:50 2011 kiwamuSummaryGeneralscheduleThe vent
will start from 1 st of August ! !
  
  132   Wed Nov 28 16:46:28 2007 ranaConfigurationComputersscientific linux 5.0I tried installing Scientific Linux on Tiramisu.
The installation process was so bad (really)
that I quit after 15 minutes. Its back to
  
  9984   Wed May 21 13:51:19 2014 SteveUpdatesafetyscope battery recallTektronix RECALL
on TDS3000 or TDS300B  oscilloscope
  
  71   Tue Nov 6 16:48:54 2007 tobinConfigurationComputersscopes on the netI configured our two 100 MHz Tektronix 3014B
scopes with IP addresses: 131.215.113.24
([url=http://scope0/]scope0[/url]) and 113.215.113.25
  
  5159   Tue Aug 9 16:54:47 2011 steveUpdateVACscratch on vac doorJenne found a big scratch on the north
vac door of ITMY. Fortunately it does not
reach the inner annulos 0 -ring seal.
 P1080152.JPG 
  4373   Thu Mar 3 07:25:24 2011 kiwamuUpdateGreen Lockingscrewed up the end PDH box I somehow screwed   
  4594   Mon May 2 11:14:27 2011 kiwamuUpdateSUSscript : opticshutdownJust FYI.
There is a useful script for this
particular job : shutting down all the suspensions
  
  110   Fri Nov 16 11:27:18 2007 tobinUpdateComputersscript fixI added a tidbit of code to "LIGOio.pm" that
fixes a [url=http://lhocds.ligo-wa.caltech.edu:8000/40m/EZCA]problem
with ezcastep on Linux[/url].  Scripts such
  
  6727   Thu May 31 04:03:17 2012 yutaUpdateIOOscript for MC beam spot measurementI wrote a wrapping script for measuring
MC beam spot. We had to run several scripts
for the measurement (see elog #6688),
  
  6871   Mon Jun 25 17:48:27 2012 yutaUpdateComputer Scripts / Programsscript for finding IR resonance using ALSI made a python script for finding IR resonance
using ALS. It currently lives in /opt/rtcds/caltech/c1/scripts/ALS/findIRresonance.py.
 findIRresonance20120625.png 
  5074   Sun Jul 31 00:05:52 2011 kiwamuUpdateLSCscript for loss measurement : modifiedI
modified the script armloss
so that the channel names in the script are
  
  6726   Thu May 31 02:27:24 2012 yutaUpdateIOOscript for reliefing MC WFSI wrote a simple script for reliefing MC
WFS servo. The script is located at /opt/rtcds/caltech/c1/scripts/MC/reliefMCWFS.
  
  4221   Fri Jan 28 13:05:56 2011 KojiConfigurationComputersscript path fixedWe had some issues in terms of the script
paths. I have fixed it by replacing /cvs/cds/caltech/scripts
to /cvs/cds/rtcds/caltech/c1/scripts
  
  10816   Thu Dec 18 16:21:08 2014 ericqUpdateComputer Scripts / Programsscripts not being backed up! I just stumbled upon this while poking
around:
Since the great crash of June 2014,
  
  2344   Sun Nov 29 16:56:56 2009 robAoGall down cond.sea of redCame in, found all front-ends down.
 
Keyed a bunch of crates, no luck:
  
  2345   Mon Nov 30 10:28:47 2009 AlbertoAoGall down cond.sea of red

    
        
  
  2346   Mon Nov 30 11:29:40 2009 AlbertoAoGall down cond.sea of red

    
        
  
  2355   Sat Dec 5 14:41:07 2009 robAoGall down cond.sea of red, againTaking  a cue from entry 2346,
I immediately went for the nuclear
option and powered off fb40m.  Someone
  
  2356   Sat Dec 5 15:20:10 2009 JenneAoGall down cond.sea of red, again


   
        
            
  
  3970   Mon Nov 22 20:31:58 2010 kiwamuUpdateGreen Lockingsearching for unknown loss in green PD path As I said in the past entry (see
this entry), there was unknown loss of
about 20dB in the beat detection path.
 RFPDresponse.png 
  6328   Mon Feb 27 21:26:22 2012 DenUpdatePEMseis boxI did liso simulation of the circuit in
the seis box. I think that AD620 (first amplifier
in the circuit) noise might be much less
 ad620.pdfnoise.pdfwhole.pdf 
  6349   Fri Mar 2 18:55:06 2012 DenUpdatePEMseis boxI've put the seismometer box back to the
1x1, Guralp is back under MC2. When the seismometer
is not plugged in, the noise is
 dv_noise.png 
  6346   Fri Mar 2 11:05:28 2012 DenUpdatePEMseis box gainI've replaced R2 resistor that adjusts
the gain of the AD620 amplifier. Previous
value 5491Ohm, new value 464Ohm, so the gain
 tf_new.pdfnoise_new.pdftf_analyzer.pngnoise_analyzer.png 
  6338   Wed Feb 29 01:02:06 2012 DenUpdatePEMseis box measuredI've measured the input signal to the seismic
box from seismometer Guralp 1. The spectrum
of the signal in the "input +"
 input.pngoutput.pngtf.pngcoherence.png 
  6343   Thu Mar 1 00:05:23 2012 DenUpdatePEMseis box noiseI've moved GUR1 seismometer from MC2 to
the working tables in order not to disturb
the MC while working with the seismometer
 DSC_3959.JPGnoise.png 
  6345   Thu Mar 1 21:48:34 2012 DenUpdatePEMseis box noise


   
        
            
 noise2.pngnoise.png 
  287   Wed Jan 30 20:39:31 2008 robUpdateDMFseisBLRMS

In order to reduce the probability of [COLOR=red]seisBLRMS[/COLOR]
  
  2387   Thu Dec 10 15:18:55 2009 JenneUpdateVACseisBLRMSlast 20 days - including the pounding from
next door
 Untitled.png 
  1730   Fri Jul 10 17:32:08 2009 ranaUpdateEnvironmentseisBLRMS & mafalda restartedRana, Alberto

Mafalda's ethernet cable had fallen out of
  
  282   Mon Jan 28 18:56:47 2008 ranaUpdateDMFseisBLRMS 1.0[B]I made all of the updates I aludded to
before:[/B]
  
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