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ID Date Author Type Category Subjectup Text Attachments
  14403   Wed Jan 16 16:25:25 2019 gautamUpdateSUSYarm locked[chub, gautam]

Summary:

Y arm was locked at low power in
 Yarm_locked.png 
  7723   Mon Nov 19 15:12:52 2012 JenneUpdateAlignmentYarm locked IR

    

       
            
  
  9888   Thu May 1 03:15:03 2014 JenneUpdateLSCYarm locking with CM board[Rana, EricQ, Jenne]
We locked the Yarm by using the CM
board this evening. 
 Yarm_CMlocking_spectra_30Apr2014_copy.pdfYarm_CMlocking_TFs_30Apr2014_copy.pdf 
  9889   Thu May 1 03:23:07 2014 ericqUpdateLSCYarm locking with CM board

    

       
            
  
  9893   Thu May 1 16:41:35 2014 ericqUpdateLSCYarm locking with CM board (Edited this post; Forgot
to account for the FMs other than 4 and 5...
it now agrees better!)
 AOsignsSame.pdfAOsignsOpposite.pdfloopModeling.m 
  9894   Thu May 1 17:00:05 2014 ranaUpdateLSCYarm locking with CM board I think that's about halfway there.
Since this needs to be a precise comparison,
we cannot use so many approximations.
  
  7073   Wed Aug 1 18:20:58 2012 JamieUpdateLSCYarm recovered[Jenne, Jamie]
We recovered lock and alignment of
the Y arm.  TRY_OUT is now at ~0.9,
  
  14235   Sun Oct 7 16:51:03 2018 gautamConfigurationLSCYarm triggering changedTo facilitate Yuki's alignment of the
EY green beam into the Yarm cavity, I have changed
  
  3362   Wed Aug 4 20:15:07 2010 JenneUpdatePEMYay! Guralps work again!After much hassle, the Guralp cable from
the ADC Out of the breakout box to the ADC
is fixed, and 
  
  8291   Thu Mar 14 04:20:54 2013 JenneUpdateGreen LockingYbeat attemptI dedicated my evening to trying to get
the Ygreen beatnote (the idea being to then
get the Xgreen beatnote).
  
  15122   Wed Jan 15 08:55:14 2020 gautamUpdateCDSYearly DAQD fixSummary:

Every new year (on Dec 31 or Jan
1), all of the realtime models will report
 DCerrors_fixed.png 
  16546   Thu Jan 6 12:52:49 2022 AnchalUpdateCDSYearly DAQD fix 2022!Just as predicted, all realtime models
reported "0x4000" error. Read the
parent post for more details. I fixed this
  
  16547   Thu Jan 6 13:54:28 2022 KojiUpdateCDSYearly DAQD fix 2022!Just
restarting all the c1sus2 models fixed the
issue. (Attachment 1)
 Screenshot_2022-01-06_13-57-40.png 
  10799   Mon Dec 15 22:30:50 2014 JenneUpdateElectronicsYend QPD modifiedDetails later - empty entry for a reply.
Short story - Yend is now same as
Xend filters-wise and lack of gain sliders
  
  10801   Mon Dec 15 22:45:59 2014 JenneUpdateElectronicsYend QPD modified 
 [Jenne, Rana, Diego]
We did some test on the modified
 QPD_Ytrans_oscillating_15Dec2014.pdfQPD_IOPchannels_Ytrans_oscillating_15Dec2014.pdf 
  9845   Thu Apr 24 00:11:35 2014 JenneUpdateLSCYend shutter back.

    

       
            
  
  8437   Wed Apr 10 15:49:22 2013 AnnalisaConfigurationCOMSOL TipsYend table eigenfrequency simulation with COMSOL I made a Simulation with COMSOL for
the Yend table. Mainly, I tried to see how
the lower eigenmode changes with the number
 Pics_end_table.pdf 
  8302   Fri Mar 15 16:46:52 2013 JenneBureaucracyAuxiliary lockingYend table upgrade - fast track?In light of the Yend auxiliary laser's
ill health, I think we should reconsider
the possibility of changing out the Yend
  
  8304   Mon Mar 18 12:23:25 2013 JenneBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATFZach has just replied, and said that we
should feel free to take
  
  8305   Mon Mar 18 12:35:29 2013 AnnalisaBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATF

    

       
            
  
  8306   Mon Mar 18 13:10:19 2013 KojiBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATF1) Annalisa is going to start  working
on mode profiling and beat note search for
the old MOPA NPRO.
  
  8308   Mon Mar 18 20:13:18 2013 AnnalisaBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATF

    

       
            
  
  7912   Thu Jan 17 11:01:19 2013 JenneUpdateAlignmentYesterday's alignment work[Jamie, Jenne, Manasa]
Yesterday's goal was to get the input
beam centered on the PRM, the BS and ETMY
  
  15720   Wed Dec 9 16:22:57 2020 gautamUpdateSUSYet another round of Sat. Box. switcharooAs discussed at the meeting, I decided
to effect a satellite box swap for the misbehaving
MC1 unit. I looked back at the summary pages
 WFS2.pngWFS_lineNoise.pngWFSchar.pdf 
  10574   Tue Oct 7 00:18:12 2014 JenneUpdateLSCYgreen PSL alignment, ETMX strain reliefNo exciting progress today.  I did
PSL green alignment for the Yarm, although
I now think that the Xarm green needs realigning
  
  493   Fri May 23 08:24:24 2008 ranaAoGTreasureYoichi Aso has arrived !   Colossus_back_(800_x_600)-thumb.jpg 
  505   Thu May 29 16:49:49 2008 steveBureaucracyPhotosYoichi has arrivedYoichi had his first 40m meeting. We welcomed
him and Tobin, who is visiting, by sugar
napoleons that 
 yoichi.pngbobsn.png 
  523   Fri Jun 6 15:56:00 2008 steveBureaucracySAFETYYoichi received safety trainingYoichi Aso received 40m specific safety training.   
  1618   Thu May 21 18:21:57 2009 ranaSummaryTreasureYoichi's words    
  3637   Fri Oct 1 16:46:20 2010 steveBureaucracySAFETYYuta received 40m-101-safety trainingOur visiting graduate student Yuta Michimura
received 40m specific basic safety training
today.
  
  5052   Thu Jul 28 13:51:00 2011 SonaliUpdateGreen LockingZHL-32A-S.Initially I was using RFPD-1611to get the
IR beat frequency. Its gain was not very
high, so I was getting a very low signal
  
  15031   Fri Nov 15 18:59:08 2019 ranaUpdateComputersZITA: started upgrade from Ubuntu 14 LTS to 18 LTSand so it begins...until this is finished
I have turned off the projector and moved
the striptools to the big TV (time to look
  
  15033   Mon Nov 18 16:32:15 2019 gautamUpdateComputersZITA: started upgrade from Ubuntu 14 LTS to 18 LTSthe upgrade seems to have been successfully
executed - the machine was restarted at ~430pm
local time. Projector remains off and diagnostic
  
  16156   Mon May 24 10:19:54 2021 PacoUpdateGeneralZita IOO stripUpdated IOO.strip on Zita to show WFS2
pitch and yaw trends (C1:IOO-WFS2_PIY_OUT16
 Screenshot_from_2021-05-24_18-09-37.png24and25_05_2021_PEM_BS_10_30.png 
  14265   Fri Nov 2 09:47:57 2018 SteveMetaphysicsTreasureZojirushi is dead     It took at least
ten years to rust away. 
 DSC01773.JPGzoji.JPG 
  14271   Mon Nov 5 15:55:39 2018 SteveMetaphysicsTreasureZojirushi is deadWe
have no coffee machine.

We
 zoji.JPG 
  14272   Tue Nov 6 09:45:32 2018 aaronMetaphysicsTreasureZojirushi is deadNew
all organic machine.
  
  15561   Sun Sep 6 14:17:18 2020 JonUpdateEquipment loanZurich Instruments analyzerOn Friday, I grabbed the Zurich Instruments
HF2LI lock-in amplifier and brought
it home. As time permits, I will work towards
  
  16226   Fri Jun 25 19:14:45 2021 JonUpdateEquipment loanZurich Instruments analyzerI returned the Zurich Instruments analyzer
I borrowed some time ago to test out at home.
It is sitting on first table across from
 ZI.JPG 
  11033   Sun Feb 15 16:20:44 2015 KojiSummaryLSC[ELOG LIST] 3f modulation cancellationSummary
of the ELOGS

3f
modulation cancellation theory 
  
  11034   Sun Feb 15 20:55:48 2015 ranaSummaryLSC[ELOG LIST] 3f modulation cancellationI wonder if DRMI can be locked on 3f using
this lower 55 MHz modulation depth. It seems
that PRMI should be unaffected, but that
  
  11035   Mon Feb 16 00:08:44 2015 KojiSummaryLSC[ELOG LIST] 3f modulation cancellationThis KTP crystal has the maximum allowed
RF power of 10W (=32Vpk) and V_pi = 230V.
This corresponds to the maximum allowed
  
  3815   Thu Oct 28 23:17:15 2010 yutaSummaryCDS[EMERGENCY] accidentally deleted daqdRana showed me that if c1sus machine runs
c1mcs stuff(and c1x02 stuff) only, we can
use dataviewer without crashing fb.
  
  3821   Fri Oct 29 11:25:15 2010 josephb, yutaSummaryCDS[EMERGENCY] accidentally deleted daqdProblem:
Missing daqd file, i.e. the framebuilder
executable.
  
  9007   Tue Aug 13 17:20:54 2013 KojiUpdateCDS[Fixed] c1iscex needs helpc1x01 timing issue was solved. Now all
of the models on c1iscex are nicely running.
Symptons
  
  11032   Sat Feb 14 22:14:02 2015 KojiSummaryLSC[HOW TO] 3f modulation cancellationWhen I finished my measurements, the modulation
setup was reverted to the conventional one.
If someone wants to use the 3f cancellation
 freq_gen_box.JPGdelay_line.JPGcable_spec.pdf 
  16663   Thu Feb 10 21:51:02 2022 KojiUpdateCDS[Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAWHuge random numbers are flowing into ETMX/ETMY
ASC PIT/YAW. Because of this, I could not
damp the ETMX/ETMY suspension at the beginning
 Screenshot_2022-02-10_21-46-02.pngScreen_Shot_2022-02-10_at_21.54.21.pngScreen_Shot_2022-02-10_at_22.14.23.png 
  16664   Fri Feb 11 10:56:38 2022 AnchalUpdateCDS[Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAWYeah, this is a known issue actually. We
go to ASC screen and manually swich off all
the outputs after every reboot. We haven't
  
  16666   Fri Feb 11 12:22:19 2022 ranaUpdateCDS[Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAWyou
can hand edit the autoBurt file which the
FE uses to set the values after boot up.
  
  16668   Fri Feb 11 17:07:19 2022 AnchalUpdateCDS[Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAWThe autoBurt file for FE already has the
C1:ASC-ETMX_PIT_SW2 (and other channels for
ETMY, ITMX, ITMY, BS and for YAW) present,
  
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