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  40m Log, Page 14 of 335  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  2957   Thu May 20 12:34:46 2010 kiwamuConfiguration40m Upgradingoptical breadboards with legsYesterday Steve and I revived two legs
to mount some optical breadboards outside
of the end table.
 leg1_small.pngleg2_small.png 
  2965   Fri May 21 08:28:29 2010 steveConfigurationVACTP3 turned off


   
        
            
  
  2970   Fri May 21 16:37:35 2010 steveConfigurationVACtp3's drypump replacedBob replaced the tipseal in an other drypump
and I swapped it in. TP3 turbo is running
again, it's foreline pressure is 40 mTorr.
  
  2972   Mon May 24 07:53:57 2010 steveConfigurationPEMair cond. just turned ONIFO room temp 27.5C , Please remember to
turn AC back on !
 acoff.jpg 
  2980   Tue May 25 09:12:46 2010 kiwamuConfigurationGreen Lockingeffect from air conditionerWe should
completely turn off the air conditioner when
 green_spot.png 
  2996   Wed May 26 22:22:03 2010 AlbertoConfiguration40m UpgradingArm cavity lengthThe second sideband is resonant in the
arms for a cavity length of 37.9299m.
The nearest antiresonant arm lengths
 reflRFpowerVsArmLength_3658m.pngreflRFpowerVsArmLength_3750m.png 
  3015   Sun May 30 15:33:21 2010 AlbertoConfigurationIOOmode cleaner and air conditioningThe mode cleaner is locked and the air
conditioning is full on. So the the air conditioning
doesn't seem to be so important for the lock
  
  3016   Sun May 30 15:36:22 2010 AlbertoConfigurationPSLIMC periscope shutterTwo days ago I opened the PSL shutter by
switching the switch on the shutter driver.
That caused the shutter's switch on the medm
  
  3023   Tue Jun 1 06:30:38 2010 KojiConfiguration40m Upgradingeffect of the arm length I checked the effect of the arm length
to the reflectance of the f2(=5*f1) sidebands.
Conclusion: If we choose L_arm
 arm_cavity1.pngarm_cavity2.pngarm_cavity.nb.zip 
  3081   Wed Jun 16 18:12:16 2010 nancyConfigurationComputers40MARSi added my laptop's mac address to teh
martian at port 13 today.
 
  
  3083   Wed Jun 16 18:44:07 2010 AlbertoConfigurationComputers40MARS


   
        
            
  
  3109   Wed Jun 23 18:05:00 2010 KojiConfigurationPSLFSS SLOWDC should be ~-4.0FSS SLOWDC slider is at around 0.

Please someone relock this at ~-4.0 to exploit
 C1PSL_FSS.png 
  3110   Wed Jun 23 23:08:30 2010 ranaConfigurationPSLFSS SLOWDC should be ~-4.0 
  
  3133   Tue Jun 29 11:48:17 2010 JenneConfigurationSAFETYBack in LASER HAZARD mode. [Steve, Kiwamu, Jenne]
The 40m is now
  
  3135   Tue Jun 29 14:16:35 2010 KojiConfigurationSAFETYBack in LASER HAZARD mode. The insects and the laser trouble... Strange
coincidences with LHO surprised me, but now
I have been relieved.
  
  3151   Wed Jun 30 23:03:46 2010 ranaConfigurationIOOPower into MC restored to maxKiwamu, Nancy, and I restored the power
into the MC today:

    Changed the 2" dia.
  
  3152   Thu Jul 1 10:26:34 2010 steveConfigurationVACpd68 at vacuum normal stateSlow pump down _pd68 has reached the vacuum
normal state.  CC4_Rga region is pumped
now. The RGA is still off.
 pd68slow2d.jpgpem134d.jpg 
  3170   Wed Jul 7 17:18:57 2010 AlbertoConfigurationElectronicsStochmon and LSC AM Stabilizer DecomissionedToday I disconnected and removed the
Stochmon box from the 1Y2 rack.
I
also removed the amplifiers that were sitting
  
  3173   Wed Jul 7 22:52:38 2010 rana, nancyConfigurationIOObad length control offset for the MCRana found out that a connection was bad
in the shown place, due to which the MEDM
screen was showing bad offset for length
 P7070251.jpgScreenshot.png 
  3178   Thu Jul 8 15:19:27 2010 josephb, kojiConfigurationComputersAdded Zonet camera to IP table on linux1We gave the Zonet camera the IP 192.168.113.26
and the name Zonet1.
We did this by modifying the /var/named/chroot/var/named/113.168.192.in-addr.arpa.zone
  
  3191   Mon Jul 12 02:21:01 2010 KojiConfigurationASCResurrection of MC WFSI have resurrected the MC WFS on Friday
night.
I have uncommented the WFS part of
  
  3206   Tue Jul 13 13:56:29 2010 GopalConfigurationOptic StacksVitol Material PropertiesViton flouroelastomers have somewhat variable
material properties. The following parameters
are being used for eigenfrequency analysis.
  
  3222   Wed Jul 14 19:00:56 2010 GopalConfigurationOptic StacksVitol Material Properties, REVISED

    
        
  
  3227   Thu Jul 15 12:21:08 2010 AlbertoConfigurationLSCPRC and SRC length adjustementsLately I've been trying to calculate the
corrections to the recycling cavity lengths
that would compensate for the phase that
 8x 
  3228   Thu Jul 15 15:57:10 2010 KojiConfigurationLSCPRC and SRC length adjustementsTell me whether it is correct or not. Otherwise
I won't be able to sleep tonight.

  
  3229   Thu Jul 15 16:16:51 2010 AlbertoConfigurationLSCPRC and SRC length adjustements


   
        
            
  
  3239   Fri Jul 16 16:12:31 2010 AlbertoConfigurationComputersc1susvme1/2 rebootedToday I noticed that the FE SYNC counters
of c1susvme1/2 on the RFM network screen
were stuck at 16384. I tried to reboot the
  
  3242   Sun Jul 18 20:50:03 2010 ranaConfigurationIOOMC TRANS optics changedTo make the beam on the MC trans camera
bigger, I removed the lens + ND filter that
was in that path.
  
  3248   Tue Jul 20 08:04:31 2010 steveConfigurationVACslow vent has startedThe PSL shutter was closed. The beam path 
blocked two places. High voltage power supplies
to IOO and OMC PZT were checked to be off.
  
  3252   Tue Jul 20 17:38:16 2010 GopalConfigurationOptic StacksStack Type ClarificationsSome clarification is warranted regarding
the different shapes of stacks. Corrections
  
  3261   Wed Jul 21 17:41:17 2010 GopalConfigurationOptic StacksPictures of StacksNow that venting is complete, this is a
request for anyone who opens any chamber:
1) Please notify me immediately
  
  3331   Fri Jul 30 09:55:34 2010 steveConfigurationVACslow pumpdown has startedBob and Steve closed BS chamber with the
help of the manual Genie lift and the pump
down started. The PSL shutter was closed
 slowpd5hr.jpg 
  3332   Fri Jul 30 12:46:38 2010 KojiConfiguration40m UpgradingBS chamber status   BS_layout_Jul_29_2010.png 
  3335   Fri Jul 30 17:52:12 2010 KojiConfigurationGeneralJacketJenne and I need our jackets. We removed
them from the Rb clock.
Thanks for making them warm. Probably
  
  3337   Fri Jul 30 19:20:15 2010 AlastairConfigurationGeneralJacket

    
        
  
  3347   Mon Aug 2 10:26:15 2010 steveConfigurationVACvery slow pumpdown completed


   
        
            
 veryslowpd.jpg 
  3355   Wed Aug 4 01:44:56 2010 KojiConfigurationPEMAccelerometer located on and below the PSL table[Jenne and Koji] 
In order to characterize the seismic vibration
 IMG_2675.jpgIMG_2678.jpgIMG_2682.jpg 
  3361   Wed Aug 4 19:50:58 2010 ranaConfigurationElectronicsRubidium clocks too hot: hut removedAlastair found that the foam hut that he
and Jan put on top of the Rb clocks to temperature
stabilize them was too good of an insulator.
 beat.png 
  3383   Sat Aug 7 11:07:44 2010 KojiConfigurationPSLMC kept locked / PMC control gain reduced to +13dBJenne asked us to keep th MC locked
and let the seismometers happy through this
weekend.
  
  3384   Sat Aug 7 21:09:59 2010 DmassConfigurationComputer Scripts / ProgramseLog changesI made some changes to the elog on nodus:

    Made a backup of /cvs/cds/caltech/elog/elog-2.7.5/elogd.cfg
called elogd.cfg.bk.20100407 in the same
  
  3433   Wed Aug 18 12:02:29 2010 AlastairConfigurationComputerselog had crashed again......I restarted it.   
  3438   Wed Aug 18 20:54:23 2010 rana, yoichiConfigurationEnvironmentChiller's chiller turned offWE programmed the MOPA chiller's AC unit
to turn off at 6PM each day and automatically
turn on at 7 AM each morning. Its now very
  
  3456   Mon Aug 23 15:24:24 2010 kiwamuConfigurationSUSwatchdogs offFor the new CDS test, I turned
off the watchdogs for PRM, SRM, BS, ITMs
  
  3457   Mon Aug 23 18:18:22 2010 kiwamuConfigurationSUSRe:watchdogs offNow watchdogs
are back.
  
  3496   Tue Aug 31 14:47:53 2010 steveConfigurationPEMtoilet upgradeOur toilets were replaced by a green Gerber
1.6 gpf ( 6 lpf ) last week.
 toil-n.JPG 
  3501   Wed Sep 1 07:52:27 2010 AlbertoConfigurationElectronicsPMC board unplugged, turned on Sorensen switches on 1Y1 rackToday I put the FSS frequency box back
into the 1Y1 rack.
To power it on, I turned on the 24V
  
  3504   Wed Sep 1 08:40:28 2010 AlbertoConfigurationElectronicsPMC board unplugged, turned on Sorensen switches on 1Y1 rack


   
        
            
  
  3514   Thu Sep 2 16:41:32 2010 steveConfigurationSAFETYlaser is ON: safety glasses required!I hooked up interlock to the Innolight
2W 1064 nm in the enclosure. The manual shutter 
is closed on this unit.
  
  3517   Thu Sep 2 21:22:31 2010 Sanjit, KojiConfigurationComputersrossa nvidia driver and dual monitor configuration 
Simple steps (but don't try these
on a working computer without getting some
  
  3518   Thu Sep 2 23:35:33 2010 ranaConfigurationComputersrossa nvidia driver and dual monitor configurationWhy are we running CentOS 4.8 instead of
5.5 ?    What runs at LLO?    
What runs in Downs?
  
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