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  40m Log, Page 325 of 346  Not logged in ELOG logo
ID Date Authorup Type Category Subject Text Attachments
  2713   Thu Mar 25 09:07:08 2010 steveUpdatePEMGuralp2 x problem is back

    
        
 grlp2xproblm.jpg 
  2716   Fri Mar 26 10:48:35 2010 steveUpdateSAFETYsafety glasses measuredSafety
glasses 1064 nm transmission measured at
~200 mW level. They are all good.
 P1060188.JPGP1060199.JPG 
  2742   Wed Mar 31 15:31:53 2010 steveUpdatePSLReference Cavity RF PD base upgraded


   
        
            
 brspdbs.JPG 
  2743   Wed Mar 31 16:31:44 2010 steveUpdatePEMGuralp interface box turned off

    
        
 grlpntrfcbxoff.jpg 
  2765   Mon Apr 5 08:43:48 2010 steveUpdatePEMearthquake mag 7.2Large
earthquake shakes Baja California, Mexico
and 6 over Magnitude 5 aftershakes follow. 
 eq7.2.jpg 
  2769   Mon Apr 5 11:39:41 2010 steveUpdateSUSITM-south installation


   
        
            
  
  2773   Mon Apr 5 14:10:06 2010 steveUpdateSUSsus damping restored

    
        
  
  2778   Wed Apr 7 09:00:01 2010 steveHowToPEMprepare to open chamberIn order to minimize the diffusion of more
dust particles into the vented IFO vacuum
envelope
 0.5micron.jpg 
  2801   Thu Apr 15 14:47:28 2010 steveUpdateElectronics25MHZ oscillation of HP4195AThe 1979 vintage RF spectrum analyzer HP4195A 
sn2904J01587 shipped out  for repair
today to http://www.avalontest.com
 P1060246.JPGP1060249.JPG 
  2812   Tue Apr 20 07:48:42 2010 steveUpdatePSLion pump HV turned onWe found ref-cavity HV was off yesterday
afternoon. It was turned back on.
  
  2813   Tue Apr 20 08:00:52 2010 steveUpdateSUSETMY damping restoredETMY sus damping was restored   
  2814   Tue Apr 20 09:15:15 2010 steveSummarySAFETYannual safety audit   safa.PDF 
  2815   Tue Apr 20 10:55:10 2010 steveBureaucracySAFETYKevin Kuns received safety training The 40m's new undergrad Kevin Kuns was
introduced to 40m safety hazards. He is new
and needs guidance as specially with 2W laser
  
  2831   Thu Apr 22 09:03:54 2010 steveOmnistructurePEMaircondition can not be turned offKoji and I wanted to turn off the IFO-room
AC so the wind would not blow on MC1-3. We
could not. The switches were probably bypassed
  
  2842   Mon Apr 26 11:13:28 2010 steveOmnistructurePEMAC on/off is working


   
        
            
  
  2919   Wed May 12 09:16:29 2010 steveUpdateGreen LockingReflection from ETM and ITM ! 
 Now I know why Rana was wearing
his bright green pants yesterday. It is nice
  
  2930   Fri May 14 08:18:46 2010 steveUpdateGreen LockingReflection from ETM and ITM !I stopped AWG  1 Hz drive to ITMYs.
ITMXe was also driven or oscillating. ITMXe
damping was off, so I turned it on. It did
 itmx1hzos.jpg 
  2939   Mon May 17 10:57:16 2010 steveConfigurationSUSdamping restored to ETMYsETMY-south sus damping was restored   
  2943   Tue May 18 11:54:29 2010 steveConfigurationSAFETYpsl mechanical shutter is not workingAs we learned yesterday, the PSL laser
power out put mechanical shutter is not working
in the remote mode. It only works in local
  
  2947   Tue May 18 15:09:02 2010 steveConfigurationSAFETYPSL output shutter in order again


   
        
            
  
  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 
  3024   Tue Jun 1 11:47:14 2010 steveUpdatePEMlead balls on concrete


   
        
            
 P1060269.JPG 
  3025   Tue Jun 1 15:51:42 2010 steveUpdatePEMfoam box for good thermal stabilityThis box was made  to provide good
thermal stability for seismometer calibration.
There is an inner solid shell of 0.064"
 albx2.PDF 
  3033   Wed Jun 2 07:54:55 2010 steveUpdateMOPAlaser headtemp is upIs the cooling line clogged? The chiller
temp is 21C See 1 and 20 days plots
 htemp.jpghtemp20d.jpg 
  3037   Wed Jun 2 18:09:32 2010 steveUpdatePEMseismometers off of linoleum floorSteve for Nancy,
Seismometer interface box ac power
was turned off, Guralps disconnected and
  
  3039   Wed Jun 2 21:21:43 2010 steveUpdatePEMseismometers off of linoleum floor
  
  3058   Wed Jun 9 10:31:13 2010 steveUpdateSAFETYsafety trainingNancy and Sharmila received introductory
early bird surf safety training for the 40m
lab.
  
  3108   Wed Jun 23 17:48:16 2010 steveUpdateMOPAlaser head tempThe laser chiller temp is fluctuating and
the power output is decreasing. See 120 days
plot.
 htemp120d.jpg 
  3130   Tue Jun 29 08:41:06 2010 steveUpdateMOPAMOPA is deadI found the laser dead this morning.
The crane people are here to unjam
it.
 laserisdead.jpg 
  3150   Wed Jun 30 18:16:55 2010 steveUpdateSAFETYSURF safety training 201040m SURFs Razib Obaid, Nancy Aggarwal,
Unknown Bearded SMURF, Megan
 DSC_1902.JPG 
  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 
  3192   Mon Jul 12 10:23:51 2010 steveUpdatePEMair condition maintenance is todayThe AC filters will be checked and/or replaced
today. This means the AC will be off for
sort periods of time. Temperature and particle
 pem2y.jpg 
  3202   Tue Jul 13 10:02:30 2010 steveUpdateMOPAlaser power is dropping slowlyI have just removed an other 400 cc of
water from the chiller.  I have been
doing this since the HTEMP started fluctuating.
 power100d.jpg 
  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.
  
  3266   Thu Jul 22 08:07:27 2010 steveUpdateVACvent finished

    
        
 30hvent.jpg 
  3272   Fri Jul 23 08:15:59 2010 steveUpdatePSLref cavity ion pumpThe ref cavity ion pump was running at
7.7kV instead of 5kV
This Digitel SPC-1 20 l/s ion pump
  
  3277   Fri Jul 23 15:32:02 2010 steveUpdatePEMcontrol room AC set point changedThe control room temp is warmer than usual.
The heat exchanger Office Pro 18 set point
was lowered from 70 to 68F yesterday.
  
  3279   Fri Jul 23 16:00:35 2010 steveUpdateSAFETYcrane load test tomorrowAll 3 cranes will be load tested at 1 ton
tomorrow morning between 9am and 2pm
Do not come to the 40m lab during
  
  3288   Mon Jul 26 08:51:31 2010 steveUpdatePEM lowering AC setpoint by 2F makes PSL happy

    
        
 htempRTemp.jpg 
  3297   Tue Jul 27 11:43:24 2010 steveUpdatePEMair quality is bad todayThe lab is at 30,000 and Pasadena air is
at 1.1 e+6 particles /cf min of 0.5 micron.
 pemtoday.jpg 
  3311   Wed Jul 28 14:54:56 2010 steveUpdateSAFETYevacuation drill at the 40mHead count at the evacuation drill today.
I checked  alarms and flashers 
at room 104,102,101, 103, 105 and 107. They
 P1060520.JPG 
  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 
  3333   Fri Jul 30 14:53:09 2010 steveUpdateGeneralPSL table leg upgrade


   
        
            
 psllegs.PDF 
  3336   Fri Jul 30 17:54:55 2010 steveHowToVACHow to stop and start slow pumpdown


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


   
        
            
 veryslowpd.jpg 
  3371   Fri Aug 6 08:09:15 2010 steveUpdatePSLPSL preparation work


   
        
            
  
  3394   Tue Aug 10 17:21:48 2010 steveUpdateGeneralPSL optical table is at 30" heightMike Gerfen, Koji and Steve,
 
Our old ( 6 x 10 x 1 ) ft Newport
 P1060586.JPGP1060583.JPGP1060591.JPGP1060593.JPGP1060597.JPG 
  3404   Thu Aug 12 10:56:31 2010 steveUpdateEnvironment dusty floor work in progresI powered down 1Y1 and 1Y2 instrument racks
of MC and RF-systems this morning.
Both racks, SP table, clean tools-parts
  
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