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ID Date Author Type Category Subjectup Text Attachments
  17169   Mon Oct 3 08:35:59 2022 TegaUpdateIMCAdding IMC channels to frames for NN test[Rana]

For the upcoming NN test on the
IMC, we need to add some more channels to
 Screen_Shot_2022-09-30_at_9.52.39_AM.png 
  16802   Fri Apr 22 07:01:58 2022 JcUpdateCoil DriversAdding Resistors and Reinstalling[Koji, JC]

Coil Drivers LO2, SR2, AS4, and
AS1 have been updated a reinstalled into
 8x 
  10130   Sat Jul 5 04:18:45 2014 AndresUpdate40m Xend Table upgradeAdding Two Lenses After the Second Steering Mirror in Order Two Increase the Gouy Phase Difference Between the Sterring MirrorsI had been working on the Xend table optical
layout update. Since the two steering mirrors
in the Xend green are too close to each,
 7x 
  14074   Mon Jul 16 18:12:00 2018 KojiUpdateVACAdding a manual gate valve between TP1 and V1/VM2[Steve Koji]

We are in the process of adding
a manual gate valve between TP1 (Osaka Maglev)
 P_20180716_155413.jpgP_20180716_155645.jpgP_20180716_155738.jpgP_20180716_162307.jpgP_20180716_172000.jpg 
  4271   Thu Feb 10 14:52:36 2011 AidanHowToComputersAdding filenames in MATLAB plotsThe following code is incredibly useful
when creating  MATLAB plots as it adds
the filename of the script to the plot itself.
  
  9430   Wed Nov 27 18:31:26 2013 KojiSummaryLSCAdittion of the ALS error signals to the LSC input matrixThe
Phase tracker outputs (= ALS X/Y error signals)
are now conveyed to the LSC model.
  
  6409   Wed Mar 14 03:34:44 2012 kiwamuUpdateSUSAdjustment of BS suspension output matrix : coupling from SIDE to POS[Rana / Kiwamu]
 We put some elements in the
 Untitled.png 
  5288   Tue Aug 23 14:49:14 2011 jamie, jenne, kiwamu, suresh, keikoUpdateSUSAdjustment of ETMY, issue with ITMY whiteningBefore lunch we took a closer look at two
of the suspensions that were most problematic:
ITMY and ETMY.  Over lunch we took new
 ITMY.pngETMY.png 
  7901   Tue Jan 15 19:26:35 2013 jamieUpdateAlignmentAdjustment of active TTs and input alignment[Jamie, Manasa, Jenne]
We started by verifying that the
tip-tilts were getting the correct signals
  
  7902   Tue Jan 15 20:00:42 2013 ManasaUpdateAlignmentAdjustment of active TTs and input alignment 
Just for reference! The changes made
to the TT matrix in order to fix the polarity
  
  4580   Thu Apr 28 10:53:50 2011 josephbUpdateCDSAdventures in Hyper-threadingWhat was done:
1) Turn off MC1,
MC2, MC3, BS, ITMX, ITMY, PRM, SRM watchdogs.
2) Turn c1sus computer off (sudo
  
  811   Thu Aug 7 17:32:23 2008 JenneUpdateSUSAfternoon PRM activitiesRana, Jenne, Yoichi, Dmass

After Yoichi confirmed this morning that
  
  5977   Tue Nov 22 14:39:50 2011 JenneUpdateelogAfternoon elog restartGave the elog its afternoon / tea-time
reboot, since it was hanging yet again.
  
  5343   Tue Sep 6 11:27:19 2011 JenneUpdateGeneralAfternoon pre-pumpdown todo listThese are
the things that I can think of that we need
  
  138   Thu Nov 29 10:36:47 2007 albertoConfigurationComputer Scripts / ProgramsAgilent 82357B GPIB to USB Interface Installation ProcedeureTo run the Agilent Automation-Ready CD provided
with the interface is only the first step
of the installation. Apparently there should
  
  14322   Tue Nov 27 17:06:51 2018 SteveConfigurationVACAgilent 84FS turbo installed as TP2Chub & Steve,   
  15681   Wed Nov 18 17:51:50 2020 gautamUpdateVACAgilent pressure gauge controller deliveredIt is stored along with the cables that
arrived a few weeks ago, awaiting the gauges
which are now expected next week sometime.
  
  16898   Tue Jun 7 19:13:12 2022 yutaUpdateSUSAgreement on suspension damping loop polarity conventionsAnchal, Paco and I agreed to follow
the polarity conventions below for suspension
damping loops.
 NoteBeforeChanges.JPG 
  14572   Thu Apr 25 10:13:15 2019 ChubUpdateGeneralAir Handler Out of CommissionThe air handler on the roof of the 40M
that supplies the electronics shop and computer
room is out of operation until next week. 
  
  11928   Tue Jan 12 08:40:06 2016 SteveUpdatePEMAir cond maintenanceAir condition maintenance is happening.
It should be done by 10am
  
  12415   Tue Aug 16 21:54:27 2016 gautamUpdateSUSAir-bake - IN PROGRESSI
put in both ETMX and ETMY into the air-bake
oven at approximately 8.45pm tonight.
 IMG_3005.JPG 
  12416   Wed Aug 17 08:47:43 2016 ericqUpdateSUSAir-bake finishedI turned off the air bake oven at 8:45AM.
I'll leave the optics alone for a bit
while it cools.
  
  12420   Wed Aug 17 23:00:57 2016 gautamUpdateSUSAir-bake of towersI just put in the following into the air
bake oven for a 12 hour, 70C bake:


ETMX and ETMY cages (with
 IMG_3006.JPG 
  12422   Thu Aug 18 14:14:20 2016 gautamUpdateSUSAir-bake of towers - finishedI took the two cages, wires and wire clamps
out this morning, back into the cleanroom
after their 12 hour 70C bake. 
  
  12411   Mon Aug 15 18:28:15 2016 gautamUpdateSUSAir-bake preparationI
assume that we are prepared to live with
the pitch bias situation of ETMY
 IMG_6816.JPG 
  578   Thu Jun 26 20:59:22 2008 ranaUpdateComputer Scripts / ProgramsAlarm Handler[COLOR=red][SIZE=5][B]Please do not turn off
the Alarm Handler on op540m.[/B][/SIZE][/COLOR]
  
  570   Thu Jun 26 01:08:22 2008 ranaConfigurationGeneralAlarm Handler RevivedI have revived the Alarm Handler by turning
it on on op540m and adjusting the levels
of
 b.gif 
  571   Thu Jun 26 01:10:18 2008 ranaUpdatePEMAlarm Handler indicates that dust level is high[I]In its first useful act[/I], the Alarm
Handler started beeping indicating that the
[COLOR=purple]dust particle
 Untitled.png 
  644   Tue Jul 8 00:14:28 2008 JohnSummaryComputersAlarm handlerRob thought it would be nice to have some
alarms on the cpu loads and FE syncs.
I added all these channels to the alarm handler
  
  14863   Fri Sep 6 16:38:24 2019 aaronUpdateALARMAlarm noise from smart-ups machine under workstation?There was an alarm sound from the Smart-UPS
2200 sitting under the workstation. I see
that the 'replace battery' light
  
  14864   Fri Sep 6 18:08:29 2019 ranaUpdateComputersAlarm noise from smart-ups machine under workstation?please no one touch
the UPS: last time it destroyed ROSSA.
Please ask Chub to order the replacement
  
  1766   Tue Jul 21 01:11:30 2009 DmassAoGComputersAlarms going offI came into the 40m to sign things out
briefly then swiftly return them, and the
alarms were going off on op540m at 1am.
  
  15634   Mon Oct 19 15:40:02 2020 KojiUpdatePEMAlaska EQ M7.5Alaska M7.5 20:54UTC https://earthquake.usgs.gov/earthquakes/eventpage/us6000c9hg/executive

I looked at the suspensions. The
  
  4758   Sat May 21 17:02:38 2011 KojiUpdateElectronicsAlberto's 11MHz was modified to POP55MHz- Resonant at 55MHz. The transimpedance
is 258Ohm. That is about half of REFL55 (don't
know why).
 POP55_schematic_110520_KA.pdfPOP55_transimpedance.pdf 
  1159   Mon Nov 24 16:43:34 2008 ranaConfigurationComputersAlex and Jay took away some computers from the racksI was over at Wilson house and saw Jay and
Alex bring in 3 rackmount computers. One
was a Sun 4600 and
  
  3836   Mon Nov 1 14:53:30 2010 josephb, alex, rolfUpdateCDSAlex updated FB and mx_streams codeProblem:
The framebuilder was being flaky. 
MX_streams would go down, prevent testpoints
  
  7101   Tue Aug 7 11:46:24 2012 JamieUpdateCDSAlex working on daqdAlex is apparently working on daqd (remotely). 
I'll report back when I find out more.
  
  683   Wed Jul 16 16:59:07 2008 AlbertoUpdateGeneralAligmentI think the two beams are aligned again -
they both pass the Faraday, they match at
the irises and all along the optical path
  
  14151   Thu Aug 9 22:50:13 2018 gautamUpdateCDSAlignSoft script modifiedAfter this
work of increasing the series resistance
on ETMX, there have been numerous occassions
 MichelsonFringing.png 
  8101   Mon Feb 18 23:41:15 2013 SendhilUpdateAlignmentAligned IPPOS, IPANG and OPLEVS[Yuta, Sendhil]
We aligned IPPOS, IPANG and all OPLEVs
(except for ETMX and SRM).
 IPANGIPPOSoplevs.png 
  10724   Mon Nov 17 23:04:51 2014 JenneUpdatePSLAligned PMCI aligned the beam into the PMC, mostly
in yaw.  Don't know why it drifted,
but it was annoying me, so I fixed it.
  
  2318   Mon Nov 23 21:36:38 2009 KojiUpdateIOOAligned PMC/RCI aligned the beam goes to PMC. It increased
the MC Trans from 8.25 to 8.30.
I also aligned the beam goes to RC.
 091123_PSL.png 
  3804   Thu Oct 28 03:21:35 2010 SureshUpdateLockingAligned the MC2 transmission photodiodeYuta and
Suresh
  
  4116   Wed Jan 5 23:22:00 2011 JenneUpdateCamerasAligned the Xarm, no big deal[Kiwamu, Jenne]
We successfully aligned the X arm. 
No big deal.  Nothing to 
 DSC_2822.JPGKiwamuJenne_5Jan2011_Xarm_Aligned.png 
  4117   Wed Jan 5 23:37:12 2011 ranaUpdateCamerasAligned the Xarm, no big dealPretty fancy work actually...I wouldn't
have guessed that you need to look at the
back of the ETM. Does this mean that we can't
  
  4118   Wed Jan 5 23:45:33 2011 JenneUpdateCamerasAligned the Xarm, no big dealCorrect.  We can see the flashes clearly
on our new ETM camera, but we see absolutely
nothing on the ITM.
  
  4119   Thu Jan 6 00:03:05 2011 KojiUpdateCamerasAligned the Xarm, no big dealNice, nice! 
The power budget for the FPMI is
  
  7579   Fri Oct 19 01:21:42 2012 EvanUpdateLockingAligning PZTs, PRM[Evan, Jenne]
Tonight we made an attempt at getting
the PRM + ITMY aligned with correct input
  
  5182   Thu Aug 11 04:45:07 2011 SureshUpdateIOOAligning the 1064nm beam with the in-vacuum pzt's[Kiwamu, Suresh]
We worked on the beam path from MC
to BS this evening. 
 FI_input_spot.jpg 
  14337   Mon Dec 10 12:11:28 2018 aaronUpdateOMCAligning the OMCI did some ray tracing and determined that
the aux beam will enter the OMC after losing
some power in reflection on OMPO (couldn't
 B9DCF55F-1355-410C-8A29-EE45D43A56A4.jpeg 
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