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ID Date Author Type Category Subjectup Text Attachments
  12120   Wed May 18 01:10:22 2016 gautamUpdateCOCFinesse modellingI've been working on putting together
a Finesse model for the current 40m configuration.
The idea was to see if I could reproduce
 arms.pdfPRC.pdfSRC.pdfFinesse_model.zip 
  12130   Tue May 24 22:49:02 2016 gautamUpdateCOCFinesse modelling - mode overlap scansSummary:

Having played around with a toy finesse
model, I went about setting up a model in
 9x 
  12131   Tue May 24 23:17:37 2016 ericqUpdateCOCFinesse modelling - mode overlap scansI think you should use the current actual
PRC & SRC cavity lengths as measured,
as it would be simplest to simply replace
  
  2903   Mon May 10 17:47:16 2010 josephbSummaryCDSFinishedSo I finished writing a script which takes
an .ipc file (the one which defines channel
names and numbers for use with the RCG code
  
  2908   Mon May 10 20:33:29 2010 KojiSummaryCDSFinishedThis IPC stuff looks really a nice improvement
of CDS.
Please just maintain the wiki updated
  
  16499   Fri Dec 10 15:59:23 2021 PacoUpdateBHDFinished Coil driver (even serial number) units tests[Paco, Anchal]

We have completed modifications
and testing of the HAM Coil driver D1100687
 dc_fail.jpg 
  16514   Thu Dec 16 15:32:59 2021 AnchalUpdateBHDFinished Coil driver (odd serial number) units testsWe have completed modifications and testing
of the HAM Coil driver D1100687 units with
serial numbers listed below. The DCC
  
  16517   Thu Dec 16 17:57:17 2021 AnchalUpdateBHDFinished Coil driver (odd serial number) units testsS2100619 was fixed
by Koji and it passed the test after
that.
  
  12329   Mon Jul 25 10:54:55 2016 PrafulUpdateComputer Scripts / ProgramsFinished MEDM Tab on Summary PagesThe MEDM screen capture tab is now working
and up on the summary pages: https://nodus.ligo.caltech.edu:30889/detcharsummary/day/20160725/medm/

Please let me know if you have
  
  12330   Mon Jul 25 12:22:18 2016 ranaUpdateComputer Scripts / ProgramsFinished MEDM Tab on Summary PagesLooks pretty great. However, there's
two problems:

1) Some of the MEDM screens don't
  
  12439   Wed Aug 24 23:47:30 2016 PrafulUpdateElectronicsFinished Prototype BoxGautam helped me drill holes in a metal
box and I set up my circuit inside. Everything
seems to be working so far. Tomorrow I'll
 out1.pdfout2.pdfout3.pdfin1.pdfin2.pdf 
  3116   Thu Jun 24 16:59:24 2010 josephbUpdateVACFinished restoring the access connector and door[Jenne,  Kiwamu, Steve, Sharmila,
Katherine, Joe]
We finished bolting the door on the
  
  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.
  
  4056   Wed Dec 15 12:46:18 2010 KojiSummaryIOOFinishing up the vac workWhat else?
v: Edit on Dec 15 10PM
  
  15490   Thu Jul 16 14:41:22 2020 gautamUpdateGeneralFire extinguisher inspectionThe (masked) tech accessed all areas in
the lab (office area, control room, VEA)
between ~230pm-3pm. The laser safety goggles
  
  15530   Mon Aug 17 21:24:43 2020 gautamUpdateGeneralFire extinguisher inspectionA technician came to the lab today at ~4pm.
He entered the VEA (with booties and googles),
and also the clean and bake lab. The whole
  
  1940   Tue Aug 25 02:37:53 2009 ranaConfigurationComputer Scripts / ProgramsFirefox 3.5 installed for 64 bit linux in apps/   DSC_0620.JPG 
  5863   Thu Nov 10 16:26:46 2011 MirkoUpdateComputersFirefox kills elogHad to restart the elog many times. For
some reason firefox 8 on Win 7 kills the
elog pretty consistently when trying to make
  
  14010   Sat Jun 23 13:08:41 2018 JonUpdateAUXFirst Coherent AUX Scan of PRC Using AM Sidebands[Jon, Keerthana, Sandrine]

Thu.-Fri. we continued with PRC
scans using the AUX laser, but now the "scanned"
 IMG_2695.jpegIMG_2698.jpegIMG_2699.jpeg 
  14011   Sat Jun 23 20:54:35 2018 KojiUpdateAUXFirst Coherent AUX Scan of PRC Using AM SidebandsHow much was the osc freq of the marconi?
And then how much was the resulting freq
offset between PSL and AUX?
  
  14017   Tue Jun 26 10:06:39 2018 keerthanaUpdateAUXFirst Coherent AUX Scan of PRC Using AM Sidebands(Jon, Keerthana, Sandrine)

I am attaching the plots of the
Reflected and transmitted AUX beam. In the
 TRANS.pdfREFL.pdf 
  7860   Wed Dec 19 21:35:33 2012 KojiSummaryGeneralFirst Contact Training with Margot[Koji, Steve]
First
Contact Training with Margot
  
  12223   Tue Jun 28 20:43:23 2016 KojiSummaryCOCFirst Contact cleaning practiceMade a dry run of the in-situ cleaning
for a 3inch optic.

Attachment 1: The Al dummy mass
 7x 
  7388   Fri Sep 14 16:39:14 2012 ericq, jenneUpdateGeneralFirst In Vac PictureAfter much fussing, we got a picture of
MMT1 with the beam.
Using the iris doesn't seem feasible.
 mmt1.jpg 
  7389   Fri Sep 14 18:15:43 2012 ranaUpdateASCFirst In Vac Picture 
 Looks good. Any way that you
can tell in an unambiguous way, where the
  
  2964   Fri May 21 00:51:06 2010 JenneUpdateIOOFirst MC mode measuring (hopefully) done[Jenne, Kiwamu, Steve]
Round 1 of measuring the MC mode
is pretty much done.  Yay.
  
  5727   Fri Oct 21 18:20:54 2011 MirkoUpdateCDSFirst OAF version running[Jenne, Jamie, Mirko]
We got the first version of the oaf
code based on Matt"s code running!!
  
  16007   Thu Apr 8 17:04:43 2021 Anchal, PacoUpdateSUSFirst Successful Coil BalancingToday, we finally crossed the last hurdle
and got a successful converging coil balancing
run. 
 SDistanceFromIdentity.pdfSmatIterations.pdfSmatrixPlots.pdf 
  565   Wed Jun 25 11:36:14 2008 Max JonesUpdateComputer Scripts / ProgramsFirst Week UpdateFor the first week I have been modifying the
noise budget script in caltech/NB to run
with 40 m parameters and data. As per Rana's
 C1_NoiseBudgetPlot_Day.epsC1_NoiseBudgetPlot_Night.eps 
  6879   Wed Jun 27 11:33:28 2012 MashaUpdateGeneralFirst Week UpdateThis week I wrote Matlab code, most of
which can be found in /users/masha
First, I wrote a simulation seismicFilter.m
  
  6878   Wed Jun 27 11:27:49 2012 LizUpdate First Week Update!This week, the
other SURF students and I got          
  
  3099   Tue Jun 22 20:07:08 2010 JenneUpdate40m UpgradingFirst attempt at Tip Tilt hanging[Jenne, Steve, Nancy, Gopal]
We
made an attempt at hanging some of the Tip
 2_ECDs_small.jpgMagnetStickingOutFar_small.jpg 
  5639   Sun Oct 9 17:13:46 2011 kiwamuUpdateLSCFirst attempt to estimate mode matching efficiency using interferometerThe efficiency
of the mode matching (MM) to PRC (Power-Recycling
 mm_reflection.png 
  5640   Mon Oct 10 00:01:26 2011 KojiUpdateLSCFirst attempt to estimate mode matching efficiency using interferometer"^2"s are missing in the second
equation, but the calculation results seem
correct.
  
  13250   Thu Aug 24 18:02:16 2017 GabrieleSummaryLSCFirst cavity length reconstruction with a neural network1) Introduction

In brief, I
trained a deep neural network (DNN) to recosntuct
the cavity length, using as input only the
 8x 
  13251   Thu Aug 24 18:51:57 2017 KojiSummaryLSCFirst cavity length reconstruction with a neural networkPhenomenal!
  
  13256   Sat Aug 26 09:56:34 2017 GabrieleSummaryLSCFirst cavity length reconstruction with a neural networkUpdate

I included the 55 MHz
sideband and higher order modes in my
training examples. To keep things simple,
 gru_fp_2017_08_25a_50x2_3000_300_20_histogram_1d.png.pnggru_fp_2017_08_25a_50x2_3000_300_20_histogram_2d.png.pngFP_net_reconstruction_1dhistogram.pngFP_net_reconstruction_2dhistogram.png 
  13258   Mon Aug 28 08:47:32 2017 JamieSummaryLSCFirst cavity length reconstruction with a neural network


  
  12065   Wed Apr 6 17:52:21 2016 gautamUpdateendtable upgradeFirst contact cleaning commencedI've begun cleaning the optics that
will eventually go back onto the newly installed
X-endtable. We decided that First Contact
  
  14613   Thu May 16 13:07:14 2019 gautamUpdateSUSFirst contact residue removalI  used a pair of tweezers to remove
the stray fiber of first contact. As Koji
predicted, this was rather dry and so it
 etmy_sensors.pdfetmy_BRmode.pdf 
  43   Thu Nov 1 01:28:04 2007 waldmanOtherOMCFirst digital lock of OMC[Pinkesh, Sam]

We locked a fiber based NPRO to the suspended
 071101_PZT_firstLoopSweep.pdf071101_PZT_firstLoopSweep.gif071101_OMC_FirstLock_spectra.pdf071101_OMC_FirstLock_spectra.gif 
  13932   Fri Jun 8 01:08:22 2018 johannesUpdatePSLFirst light of AUX at YENDAmong the things that we hadn't taken
care of yesterday before beginning to look
for transmission signals were the polarization
 AG4395A_07-06-2018_205019.pdfPSL_AUX_SETUP.pdfAS_AUX_SETUP.pdf 
  15534   Thu Aug 20 00:21:51 2020 gautamUpdateElectronicsFirst look at HV coil driverSummary:

A single channel of this
board was stuffed (and other channels
 IMG_8724.JPGtimeDomain.pdfHVampNoise.pdf 
  15536   Sun Aug 23 23:36:58 2020 gautamUpdateElectronicsFirst look at HV coil driverSummary:

A more careful analysis has revealed
some stability problems. 
 IMG_5379.JPGstabilityCriterion.pdf 
  13274   Wed Aug 30 11:04:08 2017 GabrieleSummaryLSCFirst look at neural network reconstruction of PRMI motionIntroduction

I trained a deep
neural network (DNN) to reconstruct MICH
and PRCL degrees of freedom in the PRMI configuration.
 IMG_5882.pnggru_2017_08_13a_100x4_4000_300_20_free_swinging_time_domain.png.pnggru_2017_08_13a_100x4_4000_300_20_free_swinging_free_swinging_histograms2d.png.pngsimulation_histograms2d.png.png 
  13674   Thu Mar 8 23:50:27 2018 gautamUpdateALSFirst look at new ALS electronics
Locked single arms, dither aligned,
and saved offsets to EPICS (slow) sliders
in anticipation of having to reboot all vertex
 BeatMouth_OOL.pdf 
  13675   Fri Mar 9 01:07:01 2018 gautamUpdateALSFirst look at new ALS electronics[koji,
gautam]
 ALS_vs_POXnoise.pdf 
  1714   Thu Jul 2 06:31:35 2009 ClaraUpdatePEMFirst mic in place and connectedI clamped Bonnie (microphone) to the top
of a chamber near the vertex of the arms
and placed Clyde (pre-amp) on the table right
 bonnieandclyde.JPG 
  8874   Thu Jul 18 20:20:52 2013 gautamConfigurationendtable upgradeFirst mirror glued to PZT and mounted in modified mounts 
 Yesterday,
I mounted the first PZT in one of the modified
 Piezo-mirror.jpg 
  11979   Fri Feb 5 16:50:24 2016 gautamUpdateGreen LockingFirst pass at mode-matchingI've done a first pass at trying to
arrive at a mode-matching solution for the
X-end table once we swtich the lasers out.
 Modematch_AUXx.pdfNewSetUp.pngModematch_AUXx_2.pdfXendModeMatch.m.zip 
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