40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 16 of 341  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  3897   Thu Nov 11 15:27:43 2010 valera, steveConfiguration ISS AOM installed We installed the ISS AOM in the PSL.
The AOM was placed right after the EOM. The
beam diameter is ~600 um at the AOM. The
  
  3907   Fri Nov 12 11:36:06 2010 AidanConfigurationComputersFixed the PERL PATH errors from the scripts directory change I've been trying to get a PID loop
running for the green locking and I've discovered
that some of the directories in the path
  
  3908   Fri Nov 12 12:06:11 2010 AidanConfigurationGreen LockingPID script working - now it needs to be tuned I've set up a PID script that senses
the EX-PSL Green Beat note (from the frequency
counter) and actuates on the temperature
 Screen_shot_2010-11-12_at_12.05.01_PM.png 
  3911   Fri Nov 12 20:40:51 2010 josephb, yuta, valeraConfigurationElectronicsAA voltage rangeWe changed the range of the two SUS AA
boards in the corner from +/-2 V to +/-10
V by changing the supply voltage from +/-5
  
  3913   Sat Nov 13 16:57:21 2010 valeraConfigurationElectronicsPRM Side OSEM transimpedance changeNow that we have increased the range of
the AA to +/- 10 V I have increased the PRM
side OSEM transimpedance from 29 kV/A to
 PRM-SD-ADC.pdfPRM-SD-Current.pdf 
  3914   Sun Nov 14 02:59:31 2010 ranaConfigurationGeneralMEDM snapshots web pageSince Nodus is a Solaris machine it can
barely handle doing the ImageMagick commands
(such as convert and import). I removed
  
  3949   Thu Nov 18 16:42:29 2010 Joonho LeeConfigurationElectronicsQuad Video for PMCT, RCT, RCR fixed.The far
right monitor in the control room is now
displaying IMCR, PMCT, RCR, RCT.
  
  3951   Thu Nov 18 23:45:18 2010 ranaConfigurationPSLPMC Refl CamValera
and Haixing and I installed a PMC REFL camera
 mc2_simulink.png 
  3969   Mon Nov 22 20:01:56 2010 kiwamuConfigurationComputersGPIB box : took it out from HP3563A and connect it to AG4395A I disconnected the yellow GPIB box
from the backside of 
  
  3990   Mon Nov 29 18:05:17 2010 Leo SingerConfigurationComputersinstalled graphviz on RosalbaI installed the following packages on Graphviz
in order to support visualization of GStreamer
pipeline graphs:
  
  4017   Mon Dec 6 22:43:19 2010 FrankConfigurationelogelog restartedI restarted the elog because i changed
the configuration for the cryo-elog.
Used the "start-elog.csh"
  
  4059   Wed Dec 15 16:04:49 2010 steveConfigurationVACvacuum valves found in default conditionThis condition is created when we run out
of nitrogen that holds the valves in set
positions. The Maglev and other turbos are
  
  4083   Tue Dec 21 16:20:09 2010 steveConfigurationVACpumpdown has startedSlow pumpdown of   
  4089   Wed Dec 22 17:24:50 2010 steveConfigurationVACslow pumpdown at 12 hoursWe have reached 200 Torr at 12 hours of
slow pumping speed. Kiwamu stopped the pumping
for 11 hrs last night .and I restarted it
 slowpd12h.jpg 
  4090   Wed Dec 22 21:38:47 2010 kiwamuConfigurationVACRe:slow pumpdown at 12 hoursI stopped the pumping at 9:30 pm. Now
we are at 29 torr.

  
  4094   Thu Dec 23 13:30:09 2010 steveConfigurationVACslow pumpdown completeThe pump down continued this morning by
the removal of the butterfly valve. Two roughing
pumps were used to reach 500 mTorr
 slow2dpd.jpg 
  4100   Sat Jan 1 16:36:16 2011 ranaConfigurationSUSrampdown.pl was not runningThe
crontab for op340m which runs various IFO
maintenance activities has been set to the
  
  4137   Tue Jan 11 17:08:43 2011 SureshConfigurationPSLreplaced the pzt-steering mirror on PSL[Rana,
Jenne, Suresh]
Yesterday,
  
  4143   Wed Jan 12 17:22:47 2011 SureshConfigurationLockingMC demod phase adjusted to minimise the I output[Koji, Suresh]
We wanted to check and make sure
that the relative phase of the two inputs
 TEK00000.PNG 
  4158   Fri Jan 14 17:58:50 2011 OsamuConfigurationGeneralStandalone RT setup I'll be gone to Hanford site next
week and come back to Caltech on 24th's week.
I setup a standalone RT system at
  
  4162   Mon Jan 17 04:10:10 2011 ranaConfigurationComputersNTPD restarted on c1dcuepics (to fix the MEDM screen times)I installed NTPD on Megatron (its Ubuntu,
so different from the CentOS workstations).
Here's the terminal cap to show that its
  
  4178   Thu Jan 20 17:00:39 2011 AidanConfigurationLockingBallpark figures for Green Locking PLLs (Digital vs Analogue)If we use a digital PLL for locking the
frequency of the PSL and END green lasers
then we can expect a UGF of around 1kHz (assuming
  
  4182   Fri Jan 21 11:45:01 2011 AidanConfigurationLockingBallpark figures for Green Locking PLLs (Digital vs Analogue)

    

       
            
  
  4186   Fri Jan 21 23:55:25 2011 ranaConfigurationLSCPhase Noise Measurement filterWe've set up a beat note measurement between
the VCO driver and the Marconi (see Suresh's
elog).
 a.gif 
  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
  
  4223   Fri Jan 28 15:50:44 2011 JenneConfigurationPSLThe PSL has a name!Back in the days when we were talking about
getting a new 2W PSL, I was given naming
rights by Rana for this new laser. 
 EdwinTheLaser.jpg 
  4258   Mon Feb 7 21:23:11 2011 ranaConfigurationPSLPSL FSS Temperature Sensor Interface box removedI noticed that the RMTEMP channel was spiking
myteriously when Kiwamu opened the PSL door.
We found out that the LEMO connectors would
 P2070555-1.JPG 
  4266   Wed Feb 9 23:48:12 2011 SureshConfigurationCamerasVideo Cable work: New Labels[Larisa, Aidan,Steve,Suresh]
   Today was the first
session for implementing the new video cabling
  
  4273   Fri Feb 11 09:27:03 2011 steveConfigurationVACRGA scanThe RGA scan is normal at day 52 of this
pump down.
Light power BS 1064nm ~25mW, ETMX
 rgascan20110211.jpgpressurepd70.jpg 
  4301   Tue Feb 15 11:57:06 2011 steve, valeraConfigurationPSLPMC swap We swapped the PMC s/n 2677 for s/n
lho006.
The table below summarizes the power
 P1070421.JPGP1070423.JPG 
  4331   Sun Feb 20 21:22:33 2011 rana, kiwamu, valeraConfigurationIOOMC Servo ChangeFor some reason, Kiwamu   
  4335   Tue Feb 22 00:18:47 2011 valeraConfiguration c1ioo and c1ass work and related fb crashes/restartsI have been editing and reloading the c1ioo
model last two days. I have restarted the
frame builder several times. After one of
  
  4345   Wed Feb 23 16:34:42 2011 valeraConfiguration pmc lens stagedI put the PMC last mode matching lens (one
between the steering mirrors) on a translation
stage to facilitate the PMC mode matching.
 PMCrefl.JPGP1070438.JPGP1070439.JPG 
  4350   Thu Feb 24 16:47:26 2011 steveConfigurationPSL shutter is back on the PSL outputUniblitz mechanical shutter was placed
into the beam path of the PSL output with
razor beam trap. The output power was 1.39W
 P1070441.JPG 
  4367   Wed Mar 2 16:51:53 2011 steveConfigurationGreen Lockingmech shutter in place at the south endI moved old POX shutter from ITMY optical
table to the south end. MEDM POX mechanical
shutter screen is now closing the green beam 
  
  4368   Wed Mar 2 17:19:58 2011 AidanConfigurationGreen LockingMoved PDH PD on end tableAs previously noted, there are multiple
beams coming back from the ETM surface onto
the PDH PD on the end table. They are spread
 P1000223-a.jpgP1000218.jpgP1000224.jpg 
  4402   Thu Mar 10 17:03:48 2011 Larisa ThorneConfigurationElectronicscalculations for passive low pass filter on X arm[Kiwamu, Larisa] 
 
We want to increase gain in the lower
  
  4407   Sun Mar 13 00:00:58 2011 jzweizig, ranaConfigurationDAQNDS2 code change and restart John has changed the NDS2 code and
restarted it on Mafalda. The issue is that
it goes off the rails everytime the DAQD
  
  4416   Fri Mar 18 17:55:58 2011 SureshConfigurationGreen LockingWork Plan for Y-end Aux laser installationA rough
time-table and the various tasks are given
below: 
  
  4422   Tue Mar 22 00:03:29 2011 BryanConfigurationGreen LockingPSL vs Y arm laser temperature pairing OK. Today we did the same type of
measurement for the Y arm laser as was done
for the X arm laser here: 
 PSL_vs_Y_arm_Temperatures.png 
  4423   Tue Mar 22 00:23:20 2011 JenneConfigurationGreen LockingPSL vs Y arm laser temperature pairing


   
        
            
  
  4425   Tue Mar 22 19:03:45 2011 BryanConfigurationGreen LockingPSL vs Y arm laser temperature pairing

    

       
            
  
  4437   Thu Mar 24 13:50:30 2011 BryanConfigurationGreen LockingY arm laser Just a quick update... the Lightwave
laser has now been moved up to the end of
the Y arm. It's also been mounted on the
 IMG_0188.JPGIMG_0190.JPG 
  4439   Thu Mar 24 15:30:59 2011 BryanConfigurationGreen LockingPSL vs Y arm laser temperature pairingFine-grained temperature  Temp_Beating_Day02_html_m2d719182.jpg 
  4440   Thu Mar 24 16:33:32 2011 BryanConfigurationGreen LockingPSL vs Y arm laser temperature pairingX_arm and Y_arm vs PSL  PSL_vs_X-end_T_data_fine.jpg 
  4459   Wed Mar 30 02:55:02 2011 SureshConfigurationElectronicsRF System : Status and PlansI have prepared several diagrams outlining
the current state of the RF System.
These are uploaded into the svn40m
  
  4460   Wed Mar 30 16:32:29 2011 AidanConfigurationComputer Scripts / ProgramsAdded a sitemap aliasI added an alias to the sitemap MEDM screen
in /cvs/cds/caltech/target/cshrc.40m
Now you can enjoy launching sitemap
  
  4463   Wed Mar 30 18:50:57 2011 KojiConfigurationComputer Scripts / ProgramsAdded a sitemap aliasI thought that "m40m" was the
traditional alias for the sitemap...
rossa:~>alias
  
  4464   Wed Mar 30 19:43:33 2011 BryanConfigurationGreen LockingThe wonderful world of mode-matchingRight. I've got a whole load of info and
data and assorted musings I've been saving
up and cogitating upon before dumping it
  
  4465   Wed Mar 30 19:54:19 2011 BryanConfigurationGreen LockingThe wonderful world of mode-matching   laser_output_non_circular.png 
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