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ID Date Authorup Type Category Subject Text Attachments
  9529   Tue Jan 7 21:00:02 2014 JenneUpdateIOOIP POS, IP ANG alignedAfter locking the arms (after the MC alignment
work), Manasa and I aligned IP POS, IP ANG,
and both end transmission QPDs. 
  
  9530   Tue Jan 7 22:44:45 2014 JenneUpdateCDSdaqd on fb is segfaulting every ~30 secondsThe daqd process is segfaulting and restarting
itself every 30 seconds or so.  It's
pretty frustrating. 
  
  9534   Tue Jan 7 23:24:41 2014 JenneUpdateGeneralIFO plan, list o' things to doIt seems that
the most important short-term task we have
  
  9538   Wed Jan 8 13:46:39 2014 JenneUpdateGeneralIFO plan, PRM baffle

    
        
 PRMcage_6Sept2012.JPG 
  9556   Wed Jan 15 13:05:30 2014 JenneUpdatePEM4.4 EQ in Fontana, CAIt looks like there was a 4.4 magnitude
earthquake near Fontana, CA around 1:30am
today.  This tripped all of the suspension
  
  9558   Wed Jan 15 18:42:57 2014 JenneUpdateASCPOP ASC QPD offline for a few hours this afternoonI was in the lab, near the south end of
the ITMX oplev table, looking for something,
and I bumped the POP ASC QPD's power supply. 
  
  9562   Tue Jan 21 17:26:59 2014 JenneSummaryVACRebooted RGA computer and reset RGA settings[Jenne, Steve]
Steve noticed that the RGA was not
logging data and that not all the correct
  
  9563   Tue Jan 21 19:41:59 2014 JenneUpdateElectronicsRF distribution box power button failRana, Gabriele and I are trying to measure
the FSR of the PRC (elog about that later),
and we turned off the power to the RF generation
  
  9567   Wed Jan 22 18:17:46 2014 JenneUpdateCDSfb timing was offSince this morning, the fb's timing has
been off.  Steve pointed it out to me
earlier today, but I didn't have a chance
  
  9568   Wed Jan 22 20:00:41 2014 JenneUpdateGeneralVENT GO!Steve, please begin
the vent!!
 IFOstatus_lowPower_preVent.png 
  9598   Tue Feb 4 23:01:24 2014 JenneUpdateGeneralReady for pump down?? 
 This sounds great! The only
suggestion that I have is for checking POP.
  
  9610   Fri Feb 7 13:00:52 2014 JenneUpdateGeneralIn-Vac Alignment

    

       
            
  
  9616   Mon Feb 10 16:02:12 2014 JenneUpdateGeneralPRM oplev clipped in vacuumThe PRC (locked on carrier so far today),
is pretty wobbly.  It'll stay locked
on carrier, but it's wobbling.  The
 Screenshot-Untitled_Window-1.png 
  9617   Mon Feb 10 16:20:28 2014 JenneUpdateGeneralPRM QPD recenteredIn an effort to stop the PRC from wiggling
around so much, I recentered the POP QPD
after maximizing the POPDC power when locked
  
  9619   Mon Feb 10 18:59:25 2014 JenneUpdateASCPRM ASC better, but not great yetI have turned off the 3.2Hz res gains in
the PRC ASC loops, since those seem to make
the loops unstable. 
  
  9626   Wed Feb 12 11:57:55 2014 JenneUpdateLSCMusings on RFPDs[Rana, Jenne, Manasa]
We looked at the I vs. Q separation
in several of the Refl PDs, while driving
  
  9629   Wed Feb 12 19:37:05 2014 JenneUpdateSUSclipping removed from PRM oplevI'm not happy with the beam position on
that first lens, but since it's so crazy
in the BS chamber, and the PRM oplev has
  
  9630   Wed Feb 12 19:47:40 2014 JenneUpdateLSCCalibrated REFL signalsI calibrated the REFL signals to meters
from counts.  The I-phase signals all
line up very nicely, but the Q-phase signals
 CalibratedUsingPRMdrive.pdf 
  9635   Thu Feb 13 22:27:54 2014 JenneUpdateLSCPRMI locked on REFL 33 I&Q[Jenne, Koji]
I was able to get the PRMI locked
on REFL33 I&Q, but it wasn't overly stable,
  
  9636   Fri Feb 14 00:58:41 2014 JenneUpdateLSCThoughts on Transition to IR[Koji, Jenne, EricQ, Manasa]
We
 Screenshot-Untitled_Window-1.png 
  9639   Fri Feb 14 12:39:02 2014 JenneUpdatesafetySmoke detector cleanedFacilities just came by and cleaned the
smoke detector that is above Steve's desk. 
It's next to an air vent, so I guess it collects
  
  9645   Tue Feb 18 14:28:15 2014 JenneUpdateIOOMC unstable - centering spots helpedAs we've been seeing a bit lately, the
MC will be locked happily for several hours,
but then it will start misbehaving. 
  
  9646   Tue Feb 18 18:52:08 2014 JenneUpdateLSCALS not locking with LSC Koji mentioned to me (and elogged) that
he was unsuccessful locking the ALS using
the LSC servos.  He suggested I look
 ALSX_POXvsBeatnote.pdfALSY_POYvsBeatnote.pdfBeatNoteSpectra_ArmsLockedWithIR_28Feb2014.pdfALSvsLSC_LockingFilters.pdf 
  9648   Tue Feb 18 23:27:14 2014 JenneUpdateLSCALS not locking with LSC It looks like its somehow a discrepancy
between the TFs of each error signal, because
features are similar, and present, in both
 ALSX_POXvsBeatnote_withEXCtfs.pdf 
  9649   Tue Feb 18 23:55:33 2014 JenneUpdateLSCALS locked with LSC!I'm really excited, so I'm posting this,
even though I'm still working:
  
  9651   Wed Feb 19 01:33:03 2014 JenneUpdateLSCALS locked with LSC!I am also not able to lock the ALS using
the 'regular' LSC filters.  To figure
out what filters were doing what, I made
 ALS_XARM_LockingFilters.pdfALSvsLSC_AllLockingFilters.pdfLSC_XARM_LockingFilters.pdf 
  9652   Wed Feb 19 03:07:22 2014 JenneUpdateLSCALS locked with LSC!No more progress tonight. 
I am still unable to lock the ALS using the
regular LSC filters.  I went back to
  
  9655   Wed Feb 19 11:45:12 2014 JenneUpdateLSCScripts for ALS being modifiedWe
need to change several scripts for use with
the new ALS-in-the-LSC paradigm:
  
  9659   Wed Feb 19 22:47:26 2014 JenneUpdateLSCALS locked using LSC model, Common & Diff transitioned to IR transmission signals[Jenne, Koji, Manasa, EricQ]
Today
we successfully locked the ALS using the
 common_diff_ALS.pdfALS_newVSoldBoosts.pdf 
  9661   Mon Feb 24 13:21:00 2014 JenneUpdateElectronicsMeasured REFL165 demod board I measured the REFL 165 demod board's
I/Q separation.  
Our 11MHz signal is currently 11.066092
  
  9662   Mon Feb 24 13:40:13 2014 JenneUpdateCDSComputer weirdness with c1lsc machineI noticed that the fb lights on all of
the models on the c1lsc machine are red,
and that even though the MC was locked, there
 Screenshot-Untitled_Window-1.png 
  9663   Mon Feb 24 15:25:29 2014 JenneUpdateCDSComputer weirdness with c1lsc machineThe LSC machine isn't any better, and now
c1sus is showing the same symptoms. 
Lame.
  
  9664   Mon Feb 24 16:26:14 2014 JenneUpdateCDSNTP fell out of sync on front end machines - fixed[Koji, Jenne]
Koji noticed that the time on the
front-end detail screens was not correct,
  
  9673   Tue Feb 25 17:27:41 2014 JenneUpdateLSCREFL signals calibratedI have recalibrated the REFL signals.
I first adjusted the demod phases
until the I-signals lined up with the I-phase
 SensMat_25Feb2014.pngCalibrated_25Feb2014.pdf 
  9674   Tue Feb 25 18:16:22 2014 JenneSummaryLSCEven more violin filtersA new violin mode at 1303 Hz was ringing
up this afternoon.  Rana and I added
a notch for this.
 PRMvio2.png 
  9676   Wed Feb 26 01:49:08 2014 JenneUpdateLSCChanging PRCL offset changes REFL 165 degeneracyI have measured the sensing matrix at a
variety of PRCL offset values.
 DemodPhaseSeparation.pdfPOP_AS_PDvalues.pdf 
  9677   Wed Feb 26 02:20:35 2014 JenneUpdateIOOMC unhappyI've asked Manasa and Q to have a look
at the MC in the morning.  Rana and
I have found it to be slightly uncooperative
  
  9679   Wed Feb 26 23:14:07 2014 JenneUpdateCDSfb timing was off....fb timing issue happened again.
I thought that it was the thing that
Koji and I saw the other day, where it was
  
  9680   Thu Feb 27 01:02:57 2014 JenneUpdateSUSOplev Tuning Party - round 1[Jenne, Vivien]
We
had an oplev tuning party this afternoon. 
 PRM_oplevTuning_26Feb2014.pdf 
  9683   Mon Mar 3 10:42:53 2014 JenneUpdateCDSfb timing was off...yet again.
lsc and sus needed mxstream restarts
after I restarted the ntp on fb.
  
  9686   Mon Mar 3 21:50:35 2014 JenneUpdateComputer Scripts / ProgramsDropbox installed on WorkstationsI have installed Dropbox on the 40m workstations,
using the foteee account. 
I put it in /users/Dropbox.
  
  9690   Wed Mar 5 09:52:31 2014 JenneUpdateSUSOplev Tuning - Cartoon cost functionNot a whiteboard, but here's a cartoon
of my oplev cost function cartoon. 
For the "maximize this area" and
 CostFunctionOplev.pdf 
  9694   Wed Mar 5 19:15:39 2014 JenneSummaryLSCALS offset moving script modified

    

       
            
  
  9706   Mon Mar 10 11:42:36 2014 JenneUpdateCDSfb timing was offfb timing was off again.   
  9707   Mon Mar 10 12:49:27 2014 JenneUpdateIOOPMC input pointing misalignedI don't know why, but as you can see in
Steve's plot from earlier this morning, the
PMC transmission has been going down significantly
  
  9716   Tue Mar 11 15:19:45 2014 JenneUpdateElectronicsHigh gain Trans PD electronics changeAs
part of our CESAR testing last night, we
had a look at the noise of the 1/sqrt(TR)
 IMG_1309.JPG 
  9719   Tue Mar 11 18:34:11 2014 JenneUpdateLSCComposite Error Signal for ARms (7)[Nic, Jenne, EricQ, and Koji]
We
have used CESAR successfully to bring the
 spectra-ungarble.pdfScreenshot-1.pngScanFromOffToOnResonance.pdfScanThroughResonance.pdf 
  9724   Thu Mar 13 01:18:00 2014 JenneUpdateLSCComposite Error Signal for ARms (8)[Jenne, EricQ]
As Koji suggested in his email this
afternoon, we looked at how much actuator
 7x 
  9736   Tue Mar 18 00:51:02 2014 JenneUpdateSUS4.4M local earthquake 
 I am really, really happy to
hear that it was just a sticking situation. 
  
  9771   Tue Apr 1 20:56:27 2014 JenneUpdatePEMNo noticeable effect from Chile's M8.2 earthquakeKoji locked the MC, arms, and PRMI, with
no troubles, after the M8.2 earthquake off
the coast of Chile, that happened about 4
  
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