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ID Date Author Type Categoryup Subject Text Attachments
  3746   Wed Oct 20 18:17:35 2010 Suresh, JenneUpdateSUSPRM assemblyWe have positioned the guide rod and the
wire-stand-off on the optic in the axial
direction. 
  
  3761   Fri Oct 22 15:06:43 2010 JenneUpdateSUSArts and Crafts!This afternoon I epoxied the guiderod and
wire standoff to the new PRM.  I also
epoxied the magnets that Suresh picked out
 StatusTable.png 
  3777   Mon Oct 25 11:39:06 2010 JenneUpdateSUSMagnets glued to PRMThis morning I glued the magnets to the PRM.
 Now we wait, and tomorrow afternoon (at
the earliest), Suresh and I can balance the
 StatusTable.png 
  3786   Tue Oct 26 15:57:10 2010 JenneUpdateSUSOne magnet broken, reglued[Jenne, Suresh, Thanh (Bram's Grad Student)]
When we removed the grippers from
the magnets on the PRM, one of the face magnets
  
  3798   Wed Oct 27 16:15:35 2010 SureshUpdateSUSRe-glued magnet to the PRMThanh and I re-glued the magnet to the
PRM following the procedure outlined by Jenne
The PRM in the gluing fixture has
  
  3816   Fri Oct 29 01:18:03 2010 KojiSummarySUSPRM standoff glued[Suresh Koji]
The standoff glued. The incandescent
lamp set for curing the epoxy.
 IMG_3674.jpg 
  3824   Fri Oct 29 14:16:26 2010 JenneUpdateSUSPRM baking[Suresh, Jenne]
We took a look-see at the PRM after
the gluing from last night.  The balance
  
  3840   Mon Nov 1 17:27:47 2010 JenneUpdateSUSPRM ready for installation into chamber[Jenne, Suresh]
Over the weekend, Bob and Daphen
gave the PRM a 48hr. vacuum bake.  This
  
  3867   Fri Nov 5 09:08:14 2010 steveUpdateSUSepoxyPhysical Electronics: Vac-Seal #288-6000
arriving Monday. Our last bag used last week
had a p/n 1002003 with expiration date  
 11081001.PDF 
  3889   Thu Nov 11 01:34:27 2010 JenneUpdateSUSNew-Old ETM towers assembled[Suresh, Jenne]
We have put together the new-old
ETM towers.  These are the ones which
  
  3902   Fri Nov 12 00:13:34 2010 SureshUpdateSUSETM assembly started[Jenne,
Suresh]
Selection
  
  3928   Mon Nov 15 22:24:28 2010 SureshUpdateSUSSelection of MagnetsI have
selected a set of 16 magnets which have a
B field between 900 to 950 Gauss (5% variation)
  
  3936   Tue Nov 16 23:36:29 2010 Suresh, JenneUpdateSUSAssembly of ETMs[Jenne,
Suresh]
 
 StatusTable.png 
  3942   Wed Nov 17 23:45:20 2010 JenneUpdateSUSA bad day for suspensions[Jenne, Suresh]
Today has been a downright miserable
day in the world of suspension work. Thumbs
 StatusTable.png 
  3953   Fri Nov 19 04:23:12 2010 SureshUpdateSUSCleaned and stuck magnets to dumbbellsTo clean
the glue off the magnets and dumbbells I soaked them
 7x 
  3956   Fri Nov 19 16:13:09 2010 JenneUpdateSUSETMU05: magnets glued to optic[Jenne, Suresh]
Suresh
and I glued the intact-from-the-first-round
 StatusTable.png 
  3958   Fri Nov 19 18:20:59 2010 SureshUpdateSUSGlue dynamics!I examined
the magnet-dumbbell joints under the microscope
to see whether the glue that I applied yesterday
 Too_much_glue_1.jpgToo_much_glue_2.jpgToo_much_glue_2.jpgToo_much_glue_3.jpg 
  3966   Mon Nov 22 18:39:53 2010 JenneUpdateSUSETMU07: magnets glued to optic. ETMU05: magnets removed[Suresh, Jenne]
A
 StatusTable.png 
  3979   Tue Nov 23 18:08:28 2010 JenneUpdateSUSETMU07: Balanced, standoff glued. ETMU05: Magnets glued to optic[Koji, Jenne]
ETMU07 had its wire winched to the
correct height, was balanced, standoff glued. 
 StatusTable.png 
  3984   Wed Nov 24 17:57:24 2010 JenneUpdateSUSETMU07: Baking. ETMU05: Needs side magnets reglued[Jenne, Koji]
We removed ETMU07 from the suspension
tower, after confirming that the balance
 StatusTable.png 
  3991   Mon Nov 29 22:50:07 2010 SureshUpdateSUSETMU05 Side Magnets glued back [Suresh, Jenne]
ETMU05
: Gluing Side magnets back on to the optic.
  
  3997   Tue Nov 30 12:45:36 2010 kiwamuUpdateSUSfound a loose connection : ITMX damping Last
night I found that the response of ITMX against
the angle offsets were strage.
  
  4000   Tue Nov 30 18:15:52 2010 JenneUpdateSUSETMX ready to be installed. ETMY ready for winching[Jenne, Kiwamu]
We put ETMX back in its tower, and
confirmed its balance.  It might be
 StatusTable.png 
  4002   Wed Dec 1 02:39:00 2010 SureshUpdateSUSInstallation of ETMU07 as ETMX[Kiwamu, Jenne, Koji, Suresh]
The following steps in this process
were completed.
  
  4006   Thu Dec 2 02:50:12 2010 kiwamuUpdateSUSETMX installed [Suresh, Kiwamu]
 We
  
  4018   Mon Dec 6 23:33:15 2010 JenneUpdateSUSETMU05 winched, balanced, glued!!!!!![Suresh, Jenne]
 StatusTable.png 
  4022   Tue Dec 7 18:37:15 2010 SureshUpdateSUSETMU05 ready for bakingThe ETMU05 has been removed
from the suspension and put into
the little foil house. 
  
  4024   Tue Dec 7 20:38:17 2010 kiwamuUpdateSUSwatchdogs off at ITMX and ETMXI am leaving ITMX and ETMX freely swinging,
so that later I can take the spectra and
diagonalize the input matrices.
  
  4026   Wed Dec 8 12:47:18 2010 kiwamuUpdateSUSdiagonalisation of ITMX input matrixThe input
matrix of ITMX has been diagonalized.
  
  4030   Wed Dec 8 22:35:50 2010 kiwamuUpdateSUSoplev installed on ITMX and ETMXThe oplevs
have been installed on ITMX and ETMX.
  
  4031   Wed Dec 8 22:47:09 2010 kiwamuUpdateSUSwatchdogs off at ITMX and ETMXTonight,
swing again.
  
  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 
  4033   Thu Dec 9 01:14:42 2010 OsamuUpdateSUS After Kiwamu had set the free swinging
mode for ITMX and ETMX, I found a big jump
of ITMX pitch and yaw. This jump is shown
 20101208_ITMX_jump2.png 
  4035   Thu Dec 9 11:13:37 2010 OsamuUpdateSUS 

    
        
 jump_oplev_offset.png 
  4036   Thu Dec 9 12:24:46 2010 kiwamuUpdateSUSstrange ETMX suspension[Koji, Osamu and Kiwamu]
We
found that the ETMX free swinging spectra
 ETMX_spectr.png 
  4038   Thu Dec 9 22:04:40 2010 kiwamuUpdateSUSRe:strange ETMX suspension[Koji, Osamu and Kiwamu]
We
checked the ETMX suspension and found the
  
  4039   Thu Dec 9 23:17:47 2010 kiwamuUpdateSUSbeam pointing has been done[Koji, Osamu and Kiwamu]
 We
  
  4040   Fri Dec 10 09:58:57 2010 AidanUpdateSUSbeam pointing has been doneGood news. I feel multi-chromatic-locking
success is just around the corner.
By the way, there's a new presentation
  
  4041   Fri Dec 10 11:04:03 2010 OsamuUpdateSUSETM oplev mufunctioning   20101208_ETMX_oplev_sum.png 
  4042   Fri Dec 10 11:51:20 2010 OsamuUpdateSUSITM seems bad   20101209_ITMX_drift.png20101209_ITMX_2stages.png 
  4047   Mon Dec 13 18:06:43 2010 JenneUpdateSUSETMY resuspended, ready to install. Tip Tilt realigned, ready to install.[Koji, Jenne]
I wish I could use a bigger font
for this, but, 
 StatusTable.png 
  4049   Mon Dec 13 22:21:41 2010 kiwamuSummarySUSfunny output matrix of ETMX: solved !I found that
a few connections in the simulink model of
  
  4050   Tue Dec 14 01:04:23 2010 kiwamuUpdateSUSalignment of ITMs and PRM done   The alignment of the ITMs   
  4054   Tue Dec 14 15:15:19 2010 kiwamuUpdateSUSput ETMY and aligned the beam  [Zach and Kiwamu]
 We
  
  4055   Tue Dec 14 22:42:56 2010 kiwamuUpdateSUSinstalled the last TT . And some more progresses  [Koji, Oasmu and Kiwamu]
 
  
  4063   Thu Dec 16 01:23:43 2010 kiwamuUpdateSUSSRM OSEMs installed  [Zach and Kiwamu]
 We worked
 DSC_2757_ss.jpg 
  4069   Fri Dec 17 03:37:47 2010 ranaUpdateSUSITMY / SRM / BS / PRM OPLEVs aligned

    
        
  
  4079   Mon Dec 20 23:10:25 2010 JenneUpdateSUSPretty much ready for pump-down. A few final things....[Kiwamu, Jenne, Koji, Osamu]
We have mostly prepared the IFO for
pump down. 
  
  4086   Wed Dec 22 11:24:23 2010 haixingUpdateSUSmeasurement of imbalance in quadrant maglev protopeYesterday, a sequence of force and gain
measurement was made to determine the imbalance
in the
 config_2x2.png 
  4100   Sat Jan 1 16:36:16 2011 ranaConfigurationSUSrampdown.pl was not runningThe
crontab for op340m which runs various IFO
maintenance activities has been set to the
  
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