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  40m Log, Page 170 of 339  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  8516   Tue Apr 30 23:17:25 2013 JenneUpdateLSCPRCL LSC filters copied to CARM bank temporarilyKoji is working on PRMI locking with different
photodiodes, and rather than typing different
numbers into the input matrix, it is more
  
  8515   Tue Apr 30 23:04:23 2013 JenneConfigurationRF SystemOnly 4 25m cables orderedI have found in the depths of the elog
the (original?) list of fibers and lengths
that were decided upon:  elog
  
  8514   Tue Apr 30 22:40:57 2013 JenneUpdateSUSoplev XY-plots reflect new calibrationBack when Gabriele was here, he and I implemented
online calibration of the oplevs, into microradians. 
A consequence of this is that all of the
  
  8513   Tue Apr 30 21:24:15 2013 JenneConfigurationRF SystemPOX fiber layingNice work.  That was a lot of effort,
but having done it so nicely will definitely
pay off, since it is now much harder to break
  
  8512   Tue Apr 30 19:39:14 2013 RijuConfigurationRF SystemPD frequency responseToday I have rerouted the fibers on POX
table. The aim was to lay it overhead through
the plastic pipe. A pipe ~50ft (~15.5m) long
 IMG_0511.JPGIMG_0512.JPGIMG_0513.JPGIMG_0514.JPGIMG_0515.JPG 
  8511   Tue Apr 30 12:25:23 2013 ChloeUpdate QPDAnnalisa and I met yesterday and fixed
the voltage regulator on the breadboard so
the QPD circuit is working. We will meet
  
  8510   Tue Apr 30 10:54:35 2013 JenneUpdateSUSETMX restoredI'm not sure why or when it was tripped,
but I have restored the ETMX watchdog.
  
  8509   Mon Apr 29 23:02:48 2013 KojiConfigurationLSCQuestonsQ. How much Schnupp asymmetry we want in
order to improve the signal ratio between
PRCL/MICH in REFL ports?
  
  8508   Mon Apr 29 22:13:41 2013 KojiUpdateLSCLocking with ASDCToday the locking was not as easy as that
was last Friday.
So I tried something new. Today Rana
 Screenshot.png 
  8507   Mon Apr 29 18:53:03 2013 JenneUpdateElectronics1pps timing fiber to OMC rack may be bentWhile helping Riju out this afternoon,
I noticed that the timing fiber that goes
to the OMC rack (near the AP table) was bent,
  
  8506   Mon Apr 29 17:26:22 2013 RijuConfigurationRF SystemPD frequency response Today I have rerouted the fibers
on AP table to remove the fiber rolls out
of the AP table.  I removed the fibers
 7x 
  8505   Mon Apr 29 15:53:49 2013 AlbertUpdateoptical tablesOptical Table Boxes

    

       
            
 7x 
  8504   Mon Apr 29 15:35:31 2013 Max HortonUpdateSummary PagesImporting New Code 
 I installed the new version
of LAL on allegra.  I don't think it
  
  8503   Mon Apr 29 08:22:57 2013 SteveUpdateSAFETYsafety training 
 Albert, our new undergrad work
force received 40m specific- basic safety
  
  8502   Mon Apr 29 08:17:40 2013 AlbertUpdateoptical tablesOptical Table Toolboxes Update

    

       
            
  
  8501   Sat Apr 27 00:29:40 2013 KojiUpdateLSCLSCoffset script fixedPrior to the locking trials...
scripts/LSC/LSCoffset script
  
  8500   Sat Apr 27 00:21:06 2013 KojiUpdateLSCLocking activity on Apr 26thWhen I talked with Den via phone, he recommended
to use the trigger and normalization with
POP110I.
 Screenshot.png 
  8499   Fri Apr 26 21:38:06 2013 JenneConfigurationRF SystemPD frequency responseI was sad to see that there wasn't a photo
of the POX situation after the fiber work
was done on Thursday.
 IMG_0498.JPGIMG_0499.JPGIMG_0500.JPG 
  8498   Fri Apr 26 20:43:51 2013 JenneUpdateLSCRemeasuring the Schnupp asymmetry[Jenne, Annalisa, with guidance from Koji]
We took data to remeasure the
Schnupp asymmetry, using the Valera method
  
  8497   Fri Apr 26 17:08:42 2013 RijuConfiguration PD frequency response

    

       
            
  
  8496   Fri Apr 26 15:50:48 2013 Max HortonUpdateSummary PagesImporting New Code 
I am following the instructions here:
https://www.lsc-group.phys.uwm.edu/daswg/docs/howto/lal-install.html#test
  
  8495   Fri Apr 26 10:50:07 2013 AnnalisaUpdateABSLATF laser on PSLThe ATF NPRO auxiliary laser has been moved
on the PSL table. All the optics for beat
note measurement are in place and alignment
  
  8494   Thu Apr 25 20:48:48 2013 KojiUpdateASSDen fixed the Yarm ASS scriptsI contacted Den about malfunctioning of
the Yarm ASS.
He found the scripts were modified
  
  8493   Thu Apr 25 18:58:06 2013 KojiConfiguration PD frequency responseNo.... what I told was to put the roll
next
to the splitter, 
  
  8492   Thu Apr 25 17:56:28 2013 RijuConfiguration PD frequency response [Eric, Riju]
Today we have routed the fibers from
1x16 fiber splitter to POX table for POX11
 IMG_0495.JPG 
  8491   Thu Apr 25 10:19:10 2013 KojiSummaryLSCLocking activity on Apr 24thLast night I worked on the several locking
configurations:
  
  8490   Thu Apr 25 04:10:09 2013 JenneUpdateLockingMICH_CTRL drifting away??Koji is elogging separately of his exploration
of different configurations.  The lock
stretch that I'm looking at here uses the
 1050915916-6.png1050915921-1.png1050915921-zoom.png1050915921-1-zoom.png 
  8489   Thu Apr 25 03:35:28 2013 JenneUpdateLockingAngular motion does not explain RINDen made a nice elog about the PRMI RIN
that we see a few weeks ago:  8464. 
The RIN that we're seeing is typically about
 RIN_estimation_from_angular_motion.nb.zip 
  8488   Thu Apr 25 00:59:37 2013 RijuUpdateRF SystemPD frequency response

    

       
            
  
  8487   Wed Apr 24 18:51:12 2013 KojiConfigurationoptical tablesPD frequency responseThe fibers should be routed beneath the
electrical cables. 
They should be fixed on the table
  
  8486   Wed Apr 24 15:27:59 2013 ManasaUpdate40m UpgradingEndtable upgrade for auxiliary green laser : progress: New layoutLayout that will be improved upon over
the next few days.
Things that need to be updated:
 ETMY_endtable_New.png 
  8485   Wed Apr 24 14:36:06 2013 JenneUpdateRF SystemPD frequency responseI think you have the splitter that splits
the RF signal from the network analyzer in
the wrong place. 
  
  8484   Wed Apr 24 14:24:40 2013 RijuUpdate PD frequency response Here I am attaching the first schematic
diagram of the PD frequency response set-up,
I will keep updating it with relevant informations
 PD_freq_resp.pdf 
  8483   Wed Apr 24 14:20:49 2013 KojiUpdateCDSFE Web view not updated?The FE web view seems not up-to-date, does
it? ( maybe for a year)
https://nodus.ligo.caltech.edu:30889/FE/c1mcs_slwebview_files/index.html
  
  8482   Wed Apr 24 00:44:33 2013 KojiUpdateSUSPRMI locked, ITMX pitch OpLev ringing upI tried to reproduce the locking situation
described in this
entry tonight.
  
  8481   Wed Apr 24 00:42:07 2013 JenneUpdateSUSPRMI locked, ITMX pitch OpLev ringing upKoji is working on PRMI locking, and while
he was doing that I glanced at the oplevs'
spectra for the ITMs and PRM.
 PRMI_locked_ITMXpitOpLevRingingUp.pdf 
  8480   Tue Apr 23 22:59:05 2013 ranaConfigurationSUSOptical Lever Gains normalizedDue to the recent addition   
  8479   Tue Apr 23 22:10:54 2013 ranaUpdateComputersNancycontrols@rosalba:/users/rana/docs
0$ svn resolve --accept working nancy
  
  8478   Tue Apr 23 16:31:13 2013 EricConfiguration PD frequency response[Eric, Riju]
Summary: Routing Fibers on AP table
for Photo Diode Frequency Response Measurement
  
  8477   Tue Apr 23 16:17:45 2013 DenUpdatePEMseismometer isolation kit in place

    

       
            
 Base.pdf.pdfConnectorPlate.pdf 
  8476   Tue Apr 23 15:02:19 2013 Max HortonUpdateSummary PagesImporting New CodeDuncan Macleod (original author of summary
pages) has an updated version that I would
like to import and work on.  The code
  
  8475   Tue Apr 23 15:00:20 2013 JenneUpdate40m Upgrading4 pins enough?

    

       
            
  
  8474   Mon Apr 22 20:17:05 2013 CharlesUpdateISSNew Servo w/switching filters 
In my previous post here,
a new servo design was discussed. Although
 6x 
  8473   Mon Apr 22 19:48:56 2013 JenneUpdate40m Upgrading4 pins enough?Are 4 of these spring loaded pins enough? 
I'm not sure how one pin can hold 2 lids
at each point.  It seems like we need
  
  8472   Mon Apr 22 17:43:09 2013 SteveUpdate40m Upgrading ETMY optical table & enclosure is ready for optics

    

       
            
 more2.jpg 
  8471   Mon Apr 22 17:06:42 2013 ranaSummaryIOOMC locked/aligned. MC WFS offloading by ezcaservo 
 Why use the PSL beam as a reference?
Don't we want to keep the MC pointing in
  
  8470   Mon Apr 22 12:03:58 2013 KojiUpdatePSLPMC aligned tooPMC aligned. C1:PSL-PMC-PMCTRANSPD improved
from 0.72ish to 0.835ish.
  
  8469   Mon Apr 22 11:46:09 2013 KojiSummaryIOOMC locked/aligned. MC WFS offloading by ezcaservoЕру ьс шы
тщц дщслув
фтв фдшптувю
  
  8468   Mon Apr 22 11:26:25 2013 KojiConfigurationCDSsome RT processes restartedWhen I came to the 40m, I found most of
the FB signals are dead.
The suspensions were not dumped but
  
  8467   Fri Apr 19 16:58:59 2013 JenneUpdateASCArm A2L measurement scripts 90% working againAfter Den's work with the ASS model this
week, all of the channel names were changed
(this wasn't pointed out in his elog....grrr),
  
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