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IDup Date Author Type Category Subject Text Attachments
  2574   Fri Feb 5 14:31:46 2010 JenneUpdateSUS2 SOS towers assembled[Jenne, Kiwamu]
The 2 SOS towers for the ITMs have
been assembled, and are on the flow bench
 DSC_1156.JPG 
  2575   Sat Feb 6 00:10:08 2010 SanjitUpdateAdaptive FilteringOAF at > 5Hz 
Did some more test to get better
performance at higher frequencies.
  
  2576   Mon Feb 8 14:13:03 2010 AlbertoUpdateABSLPLL CharacterizationLately I've been trying to improve the
PLL for the AbsL experiment so that it could
handle larger frequency steps and thus speed
 2010-02-08_Old_PDH_Box_Filter_TF_gain_knob_0_Boost_OFF.png2010-02-08_PLL_OLG_gain_knob_0_Boost_OFF.png2010-02-08_PLL_Noise_Budget.png 
  2577   Mon Feb 8 14:56:17 2010 AlbertoUpdateABSLSuddenly a much better alignment of PRCI just aligned PRM and locked PRC and I
noticed that SPOB is much higehr than it
used to be. It's now about 1800, vs 1200
  
  2578   Mon Feb 8 15:01:46 2010 robUpdateABSLSuddenly a much better alignment of PRC


   
        
            
  
  2579   Mon Feb 8 15:41:51 2010 AlbertoUpdateABSLSuddenly a much better alignment of PRC

    
        
  
  2580   Mon Feb 8 17:00:36 2010 josephbUpdateComputersMegatron ETMY model updated (tst.mdl)I've added the control logic for the outputs
going to the Contec Digital Output board. 
This includes outputs from the QPD filters
  
  2581   Tue Feb 9 09:07:06 2010 AlbertoUpdateABSLPLL Characterization

    
        
 2010-02-08_PRCtransmissivity_EntireFreqRange_VsFit.png 
  2582   Tue Feb 9 10:10:58 2010 AlbertoUpdateABSLback to analogI want to try to do the measurement with
the network analyzer used as local oscillator,
instead of the Marconis that I'm using now.
  
  2583   Tue Feb 9 17:18:45 2010 josephbSummaryComputersLocking Y arm successful with fully replaced front-end for ITMYWe were able to lock the Y-arm using Megatron
and the RCG generated code, with nothing
connected to c1iscey.
  
  2584   Tue Feb 9 17:51:48 2010 JenneSummaryIOOInput Mode Matching Telescope design is completeThe upgrade's input mode matching telescope
design is complete.  A summary document
is on the MMT
  
  2585   Wed Feb 10 16:27:47 2010 steveConfigurationGeneral IFO beam heightsIN
VACUUM beam heights are ALL 5.5" 
This is measured from the top of the
  
  2586   Wed Feb 10 17:28:02 2010 kiwamuUpdateElectronicstriple resonant EOM ---- preliminary resultI have made a
prototype circuit of the triple resonant
 mod_depth.png 
  2587   Wed Feb 10 23:15:37 2010 KojiUpdateElectronicstriple resonant EOM ---- preliminary resultHey, this looks nice, but can you provide
us the comparison of rad/V with the resonant
EOM of New Focus?
  
  2588   Wed Feb 10 23:44:56 2010 KojiSummaryCOCPhase Map AnalysisIn the middle of the last month, Kiwamu
and I went to Garilynn's lab to measure the
phase maps of the new ITMs and SRMs.
 SRM01_HR_RoC_rad_15mm.pngSRM01_HR_RoC_scan.png 
  2589   Thu Feb 11 15:53:59 2010 steveConfigurationVACPSL output shutter is closedJoe and Alex are working on the computers.
Our vacuum system is temporary "All
off" condition: meaning all valves are
  
  2590   Thu Feb 11 16:52:53 2010 kiwamuUpdateElectronicstriple resonant EOM ---- preliminary resultThe commercial resonant EOM of New Focus
has the modulation efficiency of 
  
  2591   Thu Feb 11 18:33:54 2010 josephb, alexUpdateComputersStatus of the IP change overA few machines have still not been changed
over, including a few laptops, mafalda, ottavia,
and c0rga.
  
  2592   Thu Feb 11 18:53:57 2010 steveConfigurationVACVAC NORMAL is back

    
        
  
  2593   Thu Feb 11 19:20:44 2010 ranaUpdateComputersStatus of the IP change overAfter Joe left:


   Turned on op440m and returned him
his keyboard and mouse.
    Damped
  
  2594   Fri Feb 12 11:44:11 2010 josephbUpdateComputersStatus of the IP change over

    
        
  
  2595   Fri Feb 12 11:56:02 2010 josephbUpdateComputersNodus slow ssh fixedKoji pointed out that logging into Nodus
was being abnormally slow.  I tracked
it down to the fact we had forgotten to update
  
  2596   Fri Feb 12 13:15:41 2010 kiwamuUpdateElectronicstriple resonant EOM --- liniaryity test
I have
measured the linearity of our triple resonant
 linearity_edit.png 
  2597   Fri Feb 12 13:56:16 2010 josephbUpdateComputersFinishing touches on IP switch overThe GPIB interfaces have been updated to
the new 192.168.113.xxx addresses, with Alberto's
help.
  
  2598   Fri Feb 12 14:19:28 2010 rana, steveHowToloreInternational FaxSteve showed me how to send an international
fax today:

    Load paper.
   
  
  2599   Fri Feb 12 15:59:16 2010 josephbUpdateComputersTestpoints not workingNon-testpoint channels seem to be working
in data viewer, however testpoints are not. 
The tpman process is not running on fb40m. 
  
  2601   Fri Feb 12 18:58:46 2010 kiwamuUpdateGreen Lockingtake some optics away from the ETM end tableIn
the last two days Steve and I took some optics
away from the both ETM end table.
 DSC_1164.JPGDSC_1172.JPG 
  2602   Sat Feb 13 13:21:53 2010 KojiUpdateElectronicstriple resonant EOM --- liniaryity testLooks good. I just thought of the idea
that we also can use Alberto's PLL setup
to sense the modulation with more sensitivity. 
  
  2603   Sat Feb 13 18:58:31 2010 josephb, alexUpdateComputersfb40m testpoints fixedI received an e-mail from Alex indicating
he found the testpoint problem and fixed
it today:
  
  2604   Tue Feb 16 09:51:22 2010 AlbertoUpdateGreen Lockingtake some optics away from the ETM end table


   
        
            
  
  2605   Tue Feb 16 10:01:16 2010 AlbertoConfigurationLSCArms and PRC not lockingSince last Friday either the arms or the
PRC can't lock.
The montors show the beam flashing
  
  2606   Tue Feb 16 11:12:51 2010 kiwamuUpdateGreen LockingRe:take some optics away from the ETM end table

    
        
  
  2607   Tue Feb 16 14:10:06 2010 josephb, rob, kojiConfigurationLSCArms and PRC not locking

    
        
  
  2608   Tue Feb 16 15:25:00 2010 AlbertoConfigurationLSCArms and PRC not locking 
 
 shock.jpg 
  2609   Tue Feb 16 16:24:30 2010 kiwamuUpdateGreen LockingRe:Re:take some optics away from the ETM end tableI put the TRY_PD back to the end table
and aligned it. Now it seems to be working
well.
  
  2610   Wed Feb 17 12:45:19 2010 josephbUpdateComputersUpdated Megatron and its firewallI updated the IP address on the Cisco Linksys
wireless N router, which we're using to keep
megatron separated from the rest of the network. 
  
  2611   Wed Feb 17 19:36:05 2010 KojiUpdateCOCArm visibilityI
have measured the arm visibilities.
I did not see any change since the
  
  2612   Thu Feb 18 10:10:43 2010 steveConfigurationGeneral480 V AC power turned offOnly the 40m cranes are running on 480VAC
The electricians are rewiring this transformer
on the mezzanine so it was shut down.
  
  2613   Thu Feb 18 15:39:16 2010 Koji and SteveConfigurationVACvalve condition: ALL OFFAs preparation for the upcoming planned
power outage we turned turbos, RGA off and
closed valves.
  
  2614   Fri Feb 19 00:31:17 2010 JenneUpdateCOCNew ITMX guiderods glued[Jenne, Kiwamu, with moral support from
Koji, and loads of advice from Steve and
Bob]
  
  2615   Fri Feb 19 02:38:32 2010 KojiConfigurationoplevsIntsant green oplevs for ITMs shooting from the endsI
set up instant green oplevs for ITMs.
A green laser pointer has been set
  
  2616   Fri Feb 19 10:18:19 2010 JenneUpdateVACThe P1 vac pressure is almost to 3mTorrThe Vac pressure measured at P1 is at 2.5mTorr. 
I expect we'll hit 3mTorr sometime this afternoon,
at which point (according to Steve) the interlock
 VacPressureAlmostShutoffLaser_19Feb2010.png 
  2617   Fri Feb 19 13:28:44 2010 KojiUpdateGeneralPrep for Power Supply Stop - ETMX/ETMY oplev paths renewed. The nominal
gain for ETMY YAW was reversed as a steering
mirror has been put.
 screen_shot.png 
  2618   Fri Feb 19 15:29:14 2010 kiwamuUpdateCOCGluing dumbbells and magnetsJenne and kiwamu
We have
  
  2619   Fri Feb 19 16:40:43 2010 kiwamuUpdateGreen Lockingrearrange the optics on the end tableKoji and kiwamu
The existing
 DSC_1202.JPGDSC_1207.JPG 
  2620   Sun Feb 21 17:44:35 2010 ranaUpdateGeneralPrep for Power Supply Stop [LIST]
[*] Turned on the RAID attached to linux1
(its our /cvs/cds disk)
  
  2621   Mon Feb 22 07:25:58 2010 ranaUpdateGeneralPrep for Power Supply Stop Autoburts have not been   
  2622   Mon Feb 22 09:45:34 2010 josephbUpdateGeneralPrep for Power Supply Stop

    
        
  
  2623   Mon Feb 22 10:25:37 2010 JenneUpdateCOCITMY standoff and guiderod epoxiedThis work happened on Friday, after Nodus
and the elog went down....
[Jenne, Kiwamu]
  
  2624   Mon Feb 22 11:38:05 2010 joe, jenne and steveConfigurationVACvacuum is back to normalMorning condition: vacuum rack power is
still off, no MEDM screen reading.....meaning
unknown vacuum pressure.We closed PSL shutter
  
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