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  40m Log, Page 15 of 341  Not logged in ELOG logo
ID Date Authordown Type Category Subject Text Attachments
  1288   Tue Feb 10 10:48:48 2009 steveBureaucracySAFETYsafety glasses scannedAll 40m safety glasses are absorbent.
 
They
were scanned by 180 mW  2mm spot size 
of 1064 nm beam and  their  transmissions
 sgscan1.pngsgscan2.png 
  1293   Wed Feb 11 11:39:17 2009 steveConfigurationGeneralvac envelope groundThe vacuum envelope was grounded from
the IOO chamber to master ground north (under
electric breaker panel L)
with
  
  1300   Fri Feb 13 08:38:03 2009 steveUpdateIOOMC2 damping restored    
  1302   Fri Feb 13 16:30:49 2009 steveConfigurationGeneralstatus quo is disturbed I have been getting ready for the annual
safety inspection in the past 2-3 days.
Meaning cleaning up and disturbing
  
  1319   Wed Feb 18 15:31:38 2009 steveBureaucracySAFETYemergency back-up lights checkedAll
13 exit and  emergency back-up lights
and their batteries were checked.
  
  1324   Thu Feb 19 11:51:56 2009 steveUpdateMOPAHTEMP variation is too muchThe C1:PSL-MOPA_HTEMP variation is more
than 0.5 C daily
Normally this
temp stays well within 0.1 C
This
 80dhtemp.jpg 
  1332   Mon Feb 23 11:07:01 2009 steveBureaucracySAFETYKiwamu receives safety trainingOsamu and Kiwamu received 40m safety training
on Thursday, Feb 19, 2009
Kiwamu needs Osamu's close supervision
  
  1347   Tue Mar 3 08:44:31 2009 steveUpdatePEMair cond. maintenance todayIFO room 104 air conditions will be shut
down for maintenance today.
This
should be finished by noon.
The
  
  1387   Wed Mar 11 16:41:22 2009 steveUpdateMOPAspare NPRO power The spare M126N-1064-700,  sn 5519
of Dec 2006 rebuilt  NPRO's power output
 measured   750mW
  
  1411   Fri Mar 20 11:01:02 2009 steveUpdatePEMparticle counts are highThe outside particle counts for 0.5 micron
are 3 million this morning at 9am. Low clouds,
foggy condition with low inversion layer.
 particles32d.jpg 
  1414   Fri Mar 20 15:54:29 2009 steveOmnistructureGeneral480V crane power switch on MEZCES Mezzanine is beeing rebuilt to accommodate
our new neighbor: the 20ft high water slide...&
.jacuzzi
  
  1420   Tue Mar 24 09:04:02 2009 steveUpdateSUS4.8 mag earthquakeSRM, ITMX, ETMX, ITMY and ETMY lost damping
at 4:55am this morning from 4.8 magnitude
earthquake.
  
  1427   Wed Mar 25 09:55:45 2009 steveUpdateIOOglitching sensors of MCSUS-MC1_SENSOR_SIDE and SUS-MC2_SENSOR_UL
are glitching
Yesterday's 4.8mag earthquake at
 glitchesofMC.jpg 
  1439   Sun Mar 29 13:44:27 2009 steveUpdateSUSETMY sus damping restoredETMY sus damping was found to be tripped.
It was retored.
All fluorecent light were turned
  
  1445   Mon Mar 30 15:51:27 2009 steveUpdateElectronicsHP4291A left the lab to be repairedEric Gustafson is handling the old HP4291A
rehabilitation. Tarac picked both units up
today.
  
  1447   Tue Mar 31 09:42:32 2009 steveUpdatePEMETMY sus damping restored againThe Caltech gasoline storage tank is being
upgraded.
They are jack hammering and digging
  
  1448   Wed Apr 1 10:22:13 2009 steveUpdateVACRGA logging is workingThanks to Joe B who made the SRS RGA working
with linux
Last data file logged at 2008 Oct
 rga-090401.png 
  1452   Fri Apr 3 10:01:50 2009 steveUpdateVACrgascan with temp plotRga scan of day 231 since pumpdown pd66-m-d231
m stands for maglev pumping speed,
vacuum normal condition of valves,
 pd66tempow.jpgrga-090403scan.png 
  1459   Wed Apr 8 09:36:20 2009 steveConfigurationVAC valve condition changed to BG to calibrate the RGAVacuum
normal valve condition was changed to accommodate
SRS-RGA calibration.
  
  1462   Thu Apr 9 11:27:19 2009 steveUpdateVACvac gauge reading problemCold cathode gauge CC4  is reading
normal.
CC1 is glitching, it is probably
 vacgflsec.jpgvacgflmin.jpg 
  1477   Mon Apr 13 08:59:57 2009 steveUpdatePSLmixers on order[quote][quote]
I then changed the RF Output Adjust slider
in increments of 0.5, and measured the peak-to-peak
  
  1486   Wed Apr 15 11:25:21 2009 steveConfigurationVAC RGA cal completed

    
        
 rga-090415-bg-d7-cald2.png 
  1506   Tue Apr 21 18:18:27 2009 steveUpdateVACmaglev failedOur Osaka TG360MB maglev failed with CSB
error message. This means that the dry emergency
landing bearing has to be replaced.
 nopumping10h.jpg 
  1507   Wed Apr 22 11:16:26 2009 steveConfigurationVACCryo pump is ON and the Maglev is deadThe
CRYO pump cooled down and VC1 was opened.
This
 cryoOn.jpg 
  1511   Thu Apr 23 16:38:33 2009 steveUpdateVACvac valve relay box is shortingBen and I found this vacuum valve relay
box intermittently shorthing yesterday.
It effects V4, V5, VA6 and VM1........
 vacrel.png 
  1517   Fri Apr 24 16:02:31 2009 steveHowToVACcryo pump interlock ruleI tested the cryopump interlock today.
It is touchy. I do not have full confidence
in it.
 cryo.png 
  1524   Mon Apr 27 18:31:44 2009 steveConfigurationVACVC1 closedCC1 5e-7 Torr,  VC1 closed at 18:25, 
IFO is not pumped, RGA is in bg-mode
 
  
  1527   Tue Apr 28 09:27:32 2009 steveConfigurationVACcryopump deserves some creditCongratulation Yoichi and Peter for full
rf locking at night. Let's remember that
the cryopump was shaking the hole vac envelope
 cryfl.jpgseiscryofl.jpg 
  1532   Wed Apr 29 10:20:14 2009 steveHowToVACcryo pump interlock rule is waved


   
        
            
  
  1542   Mon May 4 10:38:52 2009 steveUpdateMOPAlaser power is droppedAs PSL-126MOPA_DTEC went up, the power
out put went down yesterday
 dtecup.jpg 
  1547   Tue May 5 10:42:18 2009 steveUpdateMOPAlaser power is back


   
        
            
 uncloged.jpg 
  1553   Thu May 7 10:28:20 2009 steveUpdateVACretrofitted maglev's needs 
 Our spare Osaka maglev purchased
in Oct 2005 turned out to be having a viton
  
  1572   Sun May 10 13:41:17 2009 steveUpdateVACETMY damping restored, VC1 openedETMY damping restored.
Cryo  interlock closed VC1 ~2
days ago. P1 is 6.3 mTorr. Cryo temp 12K
  
  1573   Mon May 11 11:49:20 2009 steveUpdatePSLMOPA cooling water lines are backwards[quote]This is 8 days of 10-minute trend.

DTEC is just the feedback control signal
 htempvar80d.jpg 
  1586   Thu May 14 15:28:28 2009 steveSummarySUSApril 24 earthquake effect on MC2[quote][quote]The MC side problem could also
be the side tramp unit problem. Set the tramp
to 0 and see if that helps.[/quote]
 eq042409.jpg 
  1604   Tue May 19 09:34:29 2009 steveConfigurationVACIFO is not pumped & CRYO is being regeneratedMorning Vacuum condition: IFO is not being
pumped, P1 pressure is 1.8 mTorr and rising
(see P1 pressure plot of 100 min ).
 cryoreg.jpgcryo30d.jpg 
  1607   Tue May 19 15:57:07 2009 steveUpdateIOOMC2 damping restored after EQ  Earthquake mag 4.0 at Lennox, Ca
    trips MC2 watchdogs
      http://quake.usgs.gov/recenteqs/Quakes/ci10411545.html
 acc.jpg 
  1609   Tue May 19 16:18:45 2009 steveConfigurationVACIFO pressure is 4.2e-7 Torr with CRYO pump[quote]Morning Vacuum condition: IFO is not
being pumped, P1 pressure is 1.8 mTorr and
rising (see P1 pressure plot of 100 min ).
  
  1612   Wed May 20 09:55:18 2009 steveUpdatePEMoplev servos turned offAll oplevs servos turned off to protect
our suspentions from vibration due to drilling
and pounding in CES high bay area.
 ACpart6m.jpg 
  1613   Wed May 20 10:43:17 2009 steveOmnistructureEnvironmentaccelerometers sensitivity


   
        
            
 eq5m4.jpg 
  1614   Wed May 20 16:03:52 2009 steveOmnistructureEnvironmentusing OSEMs to look at seismic activityRana suggested using OSEM sensing voltages
as guide lines to look seismic activity.
As you see todays drilling and tumping
 eqOSEM5m4.jpg 
  1630   Thu May 28 18:41:26 2009 steveUpdatePSLthe saga of the chiller is endingI drained the water and removed side covers
from the Neslab RTE 140 refrigerated water
cooler unit this morning. The hoses to the
  
  1631   Fri May 29 18:57:09 2009 steveUpdatePSLthe laser is backSteve, Rob and Alberto
 
Starting capacitor 216 miroFarad
 laserisback.jpg 
  1651   Thu Jun 4 15:53:15 2009 steveUpdatePSLNPRO cooling flowrate adjustedThe Neslab chiller is working well. It's
temp display shows 20.0 C rock solid. Flow
meter rotating at 13.5Hz at the out put of
 needlevalve.jpg 
  1665   Wed Jun 10 09:06:12 2009 steveUpdatePEMparticle counts and turbulanceI moved the mobile HEPA filter from ITMX's
north door to ITMX-ISCT and covered it up
with a merostate tent to accommodate the
 parturbulnc.jpg 
  1666   Wed Jun 10 09:28:14 2009 steveUpdatePSLPMCThe PMC alarm was on this morning. It was
relocked at lower HV
The FSS_RMTEMP jumped 0.5 C so The
 pmctemphv.jpg 
  1671   Fri Jun 12 09:56:38 2009 steveConfigurationVACnew maglev installedJoe and Steve
 
The retrofitted Osaka 390 was installed
 m390pd.jpg 
  1672   Fri Jun 12 15:34:49 2009 steveConfigurationVACmaglev is running


   
        
            
  
  1674   Mon Jun 15 16:31:36 2009 steveConfigurationVACRGA is scanning new Maglev


   
        
            
  
  1677   Tue Jun 16 09:02:30 2009 steveConfigurationVACnew maglev RGA scanThe maglev fore line pressure is 3e-6 torr
at CC2 after 4 days of pumping. Varian turbo
V-70 is pumping on it through V4 and VM2
 nmagd4scan.jpgnmagd4.jpg 
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