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  40m Log, Page 155 of 341  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  9367   Tue Nov 12 16:49:22 2013 JenneUpdateLSCXend QPD and Whitening board pulled

    

       
            
 IMG_1262.JPGIMG_1260.JPGIMG_1264.JPGIMG_1276.JPG 
  9366   Tue Nov 12 15:04:35 2013 ranaUpdateCDSFE Web view was fixed

    

       
            
  
  9365   Mon Nov 11 22:35:45 2013 RANAUpdateIOOPSL pointing monitoringSince the pointing has gone bad again,
I went to the PSL to investigate. Found some
bad things and removed them:
 qpd.pdf 
  9364   Mon Nov 11 12:19:36 2013 ranaUpdateCDSFE Web view was fixed

    

       
            
  
  9363   Sat Nov 9 10:25:43 2013 KojiUpdateLSCNew Broadband PD for POP 22/110General Remarks on the BBPD

- To form the LC network: Use fixed
  
  9362   Fri Nov 8 18:12:21 2013 JenneUpdateLSCPRFPMI: Not crossing any resonances

    

       
            
 2f_resonances_Xarm_CARMsweep.pngAllModFreq_resonances_Xarm_CARMsweep.png 
  9361   Fri Nov 8 17:19:27 2013 JenneUpdateLSCNew Broadband PD for POP 22/110Here is a photo of the board inside the
broadband photodiode (one of them) that I
took from the Gyro experiment:
 IMG_1255.JPG 
  9360   Thu Nov 7 14:39:49 2013 JenneUpdateLSCLock Acquisition Game PlanBetween the 40m meeting, and chatting with
Gabriele, there was lots of talking yesterday
about our 40m Lock Acquisition game plan. 
 LockAcquisition_7Nov2013.pdf 
  9359   Thu Nov 7 11:19:04 2013 SteveUpdateVACcrane work POSTPONED to Monday

    

       
            
  
  9358   Thu Nov 7 08:57:20 2013 SteveUpdateIOOPSL pointing monitoring The qpd sees the power drop as position
change.
The laser  monitoring screen
 PMC11072013.jpgPMCTqpdMon.png 
  9357   Wed Nov 6 17:21:58 2013 JamitUpdateCDSFB not talking to LSC?

    

       
            
  
  9356   Wed Nov 6 15:59:41 2013 manasaUpdateElectronicsIOO rack +/-5V power supplies

    

       
            
  
  9355   Wed Nov 6 15:57:22 2013 JenneUpdateLSCPower Supply solutionWe have decided that, rather than replacing
the power source for the amplifiers that
are on the rack, and leaving the Thorlabs
  
  9354   Wed Nov 6 15:12:01 2013 JenneUpdateCDSFB not talking to LSC?Something funny is going on with the framebuilder's
communication with the LSC machine. 
This is a different failure mode
 Screenshot-Untitled_Window-1.png 
  9353   Wed Nov 6 14:47:41 2013 SteveFrogsLSCDin connectors added at 1Y2 The north side of the LSC rack is
full. I installed more DIN connectors with
fuses on the south side of the rack 1Y2
 1Y2moreDinFuses.jpg 
  9352   Wed Nov 6 08:33:53 2013 SteveUpdateIOOPoiting changes of PSL

    

       
            
 1dayTRENDofPOITING.png20dayTRENDioo.png 
  9351   Tue Nov 5 19:55:12 2013 ranaUpdateSUSoplev XY-plots reflect new calibrationI used the same OSEM SUSPIT/YAW method
as before to calibrate the ETMY optical
lever signals. They were off by a factor
  
  9350   Tue Nov 5 19:50:07 2013 manasaUpdateElectronicsIOO rack +/-5V power suppliesThe power supply to the ADC box on the
IOO rack (that reads the beat I & Q signals)
was pulled out because it did not run through
  
  9349   Tue Nov 5 19:39:27 2013 JenneUpdateLSCOpLev time series[Rana, Jenne]
We looked at the time series for
all the oplevs except the BS, from last Tuesday
 OpLevs_during_PRMI_2arms.pdf 
  9348   Tue Nov 5 17:12:48 2013 JenneFrogsLSCillegal power supply about to expire

    

       
            
  
  9347   Tue Nov 5 17:12:34 2013 SteveUpdateLSCcentered qpds Full list tomorrow: IP-Ang &
Pos, ETMY-T, ETMY-Oplev, ETMX-T, IOO-Ang
& Pos
 recentered.png 
  9346   Tue Nov 5 16:47:19 2013 ranaFrogsLSCillegal power supply about to expire Is this your
illegally installed HP bench power supply?
 20131023_222351.jpg 
  9345   Tue Nov 5 16:47:09 2013 JenneUpdateLSCEnd transmission QPDsI think Steve is trying to align the end
transmission QPDs, since the arms are locked
nicely right now.  I noticed that the
  
  9344   Tue Nov 5 16:39:54 2013 GabrieleUpdateLSCThoughts on Transition to IR

    

       
            
  
  9343   Tue Nov 5 08:44:21 2013 SteveUpdateIOOafter last steering mirror mount swap The IOO Angle and IOO Position qpds 
were recentered after this entry.
 Suggested corrections in elog
 after_Shutter_SMm_installed.pngafterlastSMmountswap.jpg 
  9342   Tue Nov 5 00:39:43 2013 manasaUpdateIOOIFO alignment tuningInformation acknowledged from Steve:
The last steering mirror mount for
IR on the PSL was swapped for a more robust
 MC_spot.png 
  9341   Mon Nov 4 23:11:00 2013 JenneUpdateLSCSmall updates to LSC screenI made some small edits to the LSC screen. 
* When I added columns for the new
AS110 PD, I had forgotten to make the Trigger
  
  9340   Mon Nov 4 18:24:15 2013 KojiUpdateLSCThoughts on Transition to IR You have the data. Why don't you
just calculate 1/SQRT(TRX)?
...yeah, you can calculate it but
  
  9339   Mon Nov 4 17:08:23 2013 JenneUpdateLSCThoughts on Transition to IRGabriele and I talked for a while on Wednesday
afternoon about ideas for transitioning to
IR control, from ALS. 
  
  9338   Mon Nov 4 15:46:17 2013 JenneUpdateLSCThoughts and Conclusions from last week's PRMI+2arms attempt5:31pm - This is still a work in
progress, but I'm going to submit so that
I save my writing so far. I think
 12x 
  9337   Mon Nov 4 14:11:23 2013 GabrieleSummaryLSCSimulation of REFL_3f signal when the arms come in

    

       
            
  
  9336   Mon Nov 4 12:59:43 2013 JenneUpdateIOOMC alignment not so good after PSL output shutter installed

    

       
            
 MCspots_4Nov2013.png 
  9335   Mon Nov 4 12:07:55 2013 DmassOmnistructureGeneralReplaced Broken Drill BitsI broke a small bit while using the 40m
drill press to vent some 1/4-20 screws for
the cryo experiment.
  
  9334   Mon Nov 4 11:37:12 2013 SteveUpdateIOOPSL output shutter installed 
 The PSL shutter is reinstalled.The
base plate is delrin for isolation and the
 Shutterisback.jpg 
  9333   Mon Nov 4 09:03:21 2013 SteveUpdatePSLPMC auto locker

    

       
            
 3dTREND.png 
  9332   Sun Nov 3 00:05:52 2013 CharlesSummaryISSISS Update - Bout' timeRight near the end of summer, I had an
ISS board that was nominally working, but
had a few problems I couldn't really sort
 full-op-loop.pngfull-cl-loop.pngreq-vs-meas.png 
  9331   Sat Nov 2 22:49:44 2013 CharlesUpdateISSCTN ISS Noise Suppression Requirement - Updated 10/27 Previously in elog
8959, I gave a very simple method for
determining the noise suppression behavior
 7x 
  9330   Sat Nov 2 19:36:15 2013 CharlesUpdateGeneralPossible misalignment? I was working on the electronics
bench and what sounded like a huge truck
rolled by outside. I didn't notice anything
  
  9329   Fri Nov 1 19:09:01 2013 rana, evanConfigurationPSLPMC reflected beam nonsense While looking at the PMC REFL beam
for the AOM diffracted beam, we noticed that
although only one beam exists between the
  
  9328   Fri Nov 1 18:59:41 2013 EvanConfigurationISSAOM cabling[Rana, Nic, Evan]
We did some work today on getting
the AOM back up and running so that we can
 aom.jpgaom_driver.jpgaom_driver_power.jpg20131101_170120.jpg 
  9327   Fri Nov 1 17:44:06 2013 KojiSummaryLSCSimulation of REFL_3f signal when the arms come inYes, the resonance of the 2nd-order sidebands
to the IFO screws up the 3f scheme.
2f (~22MHz) and 10f (~110MHz) are
  
  9326   Fri Nov 1 17:01:46 2013 GabrieleSummaryLSCSimulation of REFL_3f signal when the arms come in I simulated how the 3f signal is
affected by the resonance condition of the
arms.
 refl_3f_I_vs_cavity_tuning_noresf2.pngrefl_3f_I_vs_cavity_tuning.png 
  9325   Fri Nov 1 09:45:32 2013 SteveUpdateIOObeam dumps to be find

    

       
            
 razor_beam_dumps.jpg 
  9324   Thu Oct 31 21:22:00 2013 rana, kojiSummaryIOOmodulation beat note in MC servoI hooked up the 4395 to the MC servo board
test out (TP2A) and looked at the spectrum
using our new SPAG4395.py script. We noticed
 13031.png13031_200.png13031_200b.png 
  9323   Thu Oct 31 20:05:48 2013 RANAUpdateIOOMode Cleaner Tune-UP

    

       
            
 drifty.png 
  9322   Thu Oct 31 15:34:28 2013 manasaUpdateIOOMC not happy since yesterday

    

       
            
 MC_drift.png 
  9321   Thu Oct 31 00:06:45 2013 masayukiUpdateComputer Scripts / Programscds fft,tf,offsetsI
wrote the scripts for cdsutils.
1.
  
  9320   Wed Oct 30 16:46:17 2013 manasaUpdateIOOMC alignedMC has not been very happy since last night. 
What I did to fix this:
1. Disabled autolocker and WFS and
  
  9319   Wed Oct 30 14:58:44 2013 SteveHowToGeneralshutting down a computer 
 We have tried to ssh into c1iscey
yesterday morning. It just did not work.
  
  9318   Wed Oct 30 08:32:55 2013 EvanHowToComputer Scripts / ProgramsmatplotlibrcFYI, you can trick out matplotlib by creating
a matplotlibrc config
  
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