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ID Date Author Type Category Subjectup Text Attachments
  5341   Tue Sep 6 08:05:53 2011 steveUpdateSUSITMX must be touching


   
        
            
 osemITMX.jpg 
  8937   Tue Jul 30 11:30:55 2013 manasaUpdateGeneralITMX oplev

    

       
            
  
  8938   Tue Jul 30 13:41:35 2013 KojiUpdateGeneralITMX oplevI wonder what optics is causing the halo
on the oplev beam.
It this comes from any uncoated lens
  
  8939   Tue Jul 30 15:38:24 2013 manasaUpdateGeneralITMX oplev

    

       
            
  
  5395   Tue Sep 13 16:57:44 2011 steveUpdateLSCITMX oplev **

    

       
            
  
  5749   Fri Oct 28 01:13:17 2011 kiwamuUpdateSUSITMX oplev : iris fully openedI found that the sum of the ITMX oplev
signals had gone down to zero yesterday.
I checked the ITMX table and found
  
  4032   Thu Dec 9 00:34:53 2010 OsamuUpdateSUSITMX oplev Pitch OLTFWe measured Open loop TF for oplev pitch
on ITMX.
 2010128_01_ITMX_oplev_pit_oltf_fine.pdf2010128_01_ITMX_oplev_pit_oltf_fine.jpg 
  1595   Sun May 17 21:45:40 2009 robUpdateASCITMX oplev centered    
  5655   Wed Oct 12 08:43:30 2011 steveUpdateSUSITMX oplev improved a bit Atm2 is before optical path adjustment.
The idea was to remove possible clipping
in vacuum.
 ITMXoplev.pngITMXoplevservo_ON.png 
  12125   Mon May 23 10:55:49 2016 steveSummarySUSITMX oplev laser replaced 

     
May 23, 2016            
 ITMXoplev.png 
  5437   Fri Sep 16 17:09:07 2011 PaulUpdateSUSITMX oplev plan I just drew a basic picture of how
the ITMX oplev path could be reworked to
minimise the number of optics in the path.
 ITMX_oplev_plan.png 
  11160   Mon Mar 23 13:27:33 2015 ericqUpdateSUSITMX oplev quadrant gains unbalancedI've been poking around the oplev situation.
One thing I came across regarding ITMX was
that the gain on segment 4 seems to be about
 olsum.png 
  5660   Thu Oct 13 14:23:09 2011 steveUpdateSUSITMX oplev with 3 mm beam on qpd I replaced the JDSU-Uniphase 1125P
by 1103P He/Ne laser. This new laser had
2.8 mW output yesterday. It degraded to 0.5
 ITMXoplev1103p#2.pngITMXoplev.png 
  16843   Tue May 10 16:31:14 2022 TegaUpdateBHDITMX optlev return beam steered to QPDFollowed the steps below to complete the
ITMX optlev installation. The ITMX optlev
return beam now reaches its QPD without being
  
  11755   Thu Nov 12 09:15:56 2015 SteveUpdateSUSITMX osemsThe ITMX OSEMS are oscillating.  ITMX.png 
  5337   Fri Sep 2 17:52:16 2011 kiwamuUpdateSUSITMX realignedThe new ITMX
was aligned by changing the DC biases.
  
  5342   Tue Sep 6 11:21:33 2011 JenneUpdateSUSITMX rehung (Friday)[Jenne, Katrin, Jamie]
I'm a bad kid, and forgot to elog
my Friday morning work...
  
  15585   Sat Sep 19 19:14:59 2020 KojiUpdateGeneralITMX released / ETMY UR magnet knocked offThere were two SUSs which didn't look
normal.

- ITMX was easily released by the
 IMG_6218.jpeg 
  12489   Tue Sep 13 19:02:56 2016 TengUpdateGeneralITMX sensor[Lydia,Teng]

Something strange happened to the
ITMX osem reading around 4.pm. PDT as shown
 47.png34.png 
  13182   Thu Aug 10 09:31:57 2017 SteveUpdateSUSITMX sensor voltageThere must be some bad connection




 9daysITMX.pngvacGlitchITMX.png 
  12520   Tue Sep 27 18:04:50 2016 LydiaUpdateSUSITMX slow channels down, ITMY diagonalization update[Teng, Lydia]

When we plugged in the back cables
yesterday on the whitening boxes after switching
 ITMY_diagsuccess.pdf 
  13173   Tue Aug 8 20:48:06 2017 gautamUpdateSUSITMX stuckSomewhere between CDS model restarts   
  12518   Mon Sep 26 19:48:09 2016 LydiaUpdateSUSITMX stuck again, ITMY whitening issueThis afternoon around 2:45, ITMX started
ringing up at ~.9Hz for about a minute and
then
 44.png26.png 
  16837   Mon May 9 18:43:03 2022 AnchalUpdateBHDITMX table layout correctedAs I went to correct the ITMX Oplev mirrors,
I found that both mirrors were placed in
very different positions than the design
  
  5752   Fri Oct 28 03:42:50 2011 kiwamuUpdateLSCITMX table needs to be refined(POX)
The POX beam had been 80% clipped
at a black glass beam dump of the POX11 RFPD.
 ITMXtable.png 
  4125   Fri Jan 7 15:17:37 2011 steveUpdateCamerasITMX video monitor has tower wide viewThe Watec 902, 1/2" CCD camera got
new Tamron lens: 1/2" 10-40mm F/1.4 
manual iris. IR corrective lens. It is designed
  
  4916   Thu Jun 30 01:50:02 2011 JenneUpdateSUSITMX whitening, ETMX left free swingingWhile closing up the whitening shop for
the night, I noticed that the ITMX whitening
state (Whitening "On") is opposite
  
  2367   Tue Dec 8 16:27:13 2009 JenneUpdateCOCITMX wipedJenne, Kiwamu, Koji, Alberto, Steve, Bob
ITMX
  
  5297   Wed Aug 24 12:08:56 2011 jamieUpdateSUSITMX, ETMX, ETMY free swingingITMX: 998245556
ETMX, ETMY: 998248032
  
  5055   Thu Jul 28 16:26:42 2011 steveUpdateSUSITMX, ITMY & ETMY OSEM gains adjusted 
OSEM damping gains were adjusted
by observing  real time dataviewer to
  
  5291   Tue Aug 23 17:45:22 2011 jamieUpdateSUSITMX, ITMY, ETMX clamped and moved to edge of tablesIn preparation for tomorrow's drag wiping
and door closing, I have clamped ITMX, ITMY,
and ETMX with their earthquake stops and
  
  16906   Fri Jun 10 13:52:22 2022 JCUpdateOPLEV TablesITMX, ITMY, and Vertex Table Beam PathsI have at taken photos and added arrows
which signify the beam paths for ITMX,
ITMY, and Vertex Oplev tables.
 DCE4F1D7-5AE0-491C-8AF6-F8B659C0787E_1_105_c.jpeg4B24C891-654D-4C51-A8D9-D316364FCF68_1_105_c.jpegF5B115E5-885F-463C-9645-BB2EB73B6144_1_201_a.jpeg 
  799   Tue Aug 5 12:52:28 2008 YoichiUpdateSUSITMX, SRM OSEM spectraFree swinging spectra of ITMX and SRM.
ITMX seems to be ok after yesterday's work,
though the OSEM DC values are still a bit
 ITMX-2008_08_05-morning.pdfSRM-2008_08_05-morning.pdf 
  14584   Mon Apr 29 16:34:27 2019 gautamUpdateElectronicsITMX/IMTY mis-labelling fixed at 1X4 and 1X5After the X and Y arm naming conventions
were changed, the labelling of the electronics
in the eurocrates was not changed 😞
 IMG_7400.JPGIMG_7401.JPG 
  6600   Thu May 3 21:13:48 2012 KojiSummarySUSITMX/PRM/BS OPLEV aligned[Jenne/Den/Koji]
We locked Xarm/Yarm and manually
alignmed ITMX/ITMY/BS/ETMX/ETMY/PZT1/PZT2.
  
  2469   Wed Dec 30 20:33:36 2009 rana, albertoConfigurationCamerasITMY & MC2 Camera workWe
restored the good state of the ITMY camera
 DSC_1064.JPGDSC_1065.JPGDSC_1066.JPG 
  16370   Fri Oct 1 12:12:54 2021 StephenUpdateBHDITMY (3002) CAD layout pushed to BoxKoji requested current state of BHD 3D
model. I pushed this to Box after adding
the additional SOSs and creating an EASM
 3002_20211001_ITMY_BHD_for_Koji_presentation_images.easm40m_upgrade_layout_20200611-ITMY_Beam_Dim.pdf 
  2777   Tue Apr 6 22:54:34 2010 KojiUpdateSUSITMY (south) alignedKiwamu and Koji
ITMY
(south) was aligned
 IMG_2362.jpg 
  4066   Fri Dec 17 00:30:05 2010 KojiUpdateIOOITMY / SRM / BS / PRM OPLEVs aligned[Steve and Koji]
The
invac OPLEV mirrros were aligned
  
  4069   Fri Dec 17 03:37:47 2010 ranaUpdateSUSITMY / SRM / BS / PRM OPLEVs aligned

    
        
  
  14484   Mon Mar 18 17:06:12 2019 gautamUpdateOptical LeversITMY HeNe replacedOplev HeNe was replaced this afternoon.
We did some HeNe shuffling:


A new HeNe was being used
 OLRIN.pdfOL_PIT.pdfOL_YAW.pdf 
  5198   Thu Aug 11 18:30:40 2011 KojiUpdateSUSITMY OSEM adjustment[Jamie, Koji]
ITMX
OSEMs were adjusted so as to have the right
  
  9231   Thu Oct 10 11:46:43 2013 JenneUpdateSUSITMY OpLev NoiseFor my work designing a cost function,
so that I can try out new feedback servo
designs on the oplevs, I wanted to know what
 ITMY_OpLev_Noise.png 
  5429   Fri Sep 16 00:08:30 2011 PaulUpdateSUSITMY Oplev QPD dark and bright noise spectra I tried again at plotting the ITMY_QPD
noise spectra in for dark and bright operation.
Before we had the strange situation where
 ITMY_oplev_dark_noise_vs_bright_noise.pdf 
  5427   Thu Sep 15 22:26:32 2011 PaulUpdateSUSITMY Oplev QPD dark noise PSD I took a dark noise measurement for
the ITMY QPD, for comparison with measurements
of the oplev noise later on. Initially I
 ITM_dark_QPD_PSD.pdf 
  10253   Tue Jul 22 15:54:19 2014 ericqUpdateSUSITMY Oplev Recentered ITMY oplev was nearly clipping in
yaw, causing wonky behavior (POY lock popping
in and out frequently). I recentered it and
  
  16780   Thu Apr 14 18:34:51 2022 PacoSummaryBHDITMY Oplev reinstalled (Re: 2 in oplev mirrors incompatible with LMR2V)[Paco, Yehonathan]

We installed ITMYOL1 and ITMYOL2
on the ITMY chamber. We aligned the ITMY
  
  5436   Fri Sep 16 16:34:54 2011 PaulUpdateSUSITMY SRM oplev telescope planI've calculated a suitable collimating
telescope for the ITMY/SRM oplev laser, based
on the specs for the soon-to-arrive 2mW laser
 ITMY_SRM_telescope.png 
  13830   Thu May 10 11:38:19 2018 gautamUpdateGeneralITMY ULLooking at Steve's plot, I was reminded
of the ITMY UL OSEM issue. The numbers don't
make sense to me though - 300um of DC shift
 ITMY_UL.pdf 
  975   Mon Sep 22 12:06:58 2008 robUpdateSUSITMY UL OSEM

Last week I found the ITMY UL OSEM dead.
  
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