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ID Dateup Author Type Category Subject Text Attachments
  4887   Sun Jun 26 18:35:16 2011 ranaHowToSUSfree swing all opticsI used scripts/SUS/freeswing-all.csh to
give the optics a kick and then turn off
their watchdogs and collect the free swinging
 ringdown.png 
  4888   Sun Jun 26 22:38:20 2011 ranaUpdateCDSMC1 LR dead for > 1 month; now revived temporarily Since the MC1 LRSEN channel is
not wasn't working, my input matrix
diagonalization hasn't worked today
 lrsen.pngbt.jpg 
  4889   Mon Jun 27 00:23:11 2011 ranaUpdateCDSETMX SIDE problemThe slow readback of the ETMX side seems
to also have something flaky and bi-stable.
This is not an issue for damping, but it
 etmx-side.png 
  4890   Mon Jun 27 10:04:29 2011 kiwamuSummaryGeneralWeekly report Summary
for the week ending June 26th. 
(Number
  
  4891   Mon Jun 27 16:57:06 2011 steveUpdatePhotosHaixing is backHe has moved the levitation stuff for his
surf student to Jan's lab in W-Bridge.
 P1070914.JPG 
  4892   Tue Jun 28 01:18:53 2011 ranaHowToSUSfree swing all opticsChris Wipf tells me that the EPICS Mutex
Jumbo Mumbo can be overcome by upgrading
our EPICS. We should get one of Jamie's assistants
  
  4893   Tue Jun 28 02:11:47 2011 JenneUpdateLockingLatest MICH noise budgetI have measured / calculated the latest
MICH noise budget.  It doesn't really
look all that stellar.
 MICH_noise_budget_as_of_28June2011.png 
  4894   Tue Jun 28 07:46:54 2011 SureshUpdateIOOPower incident on REFL11 and REFL55I measured the power incident on REFL11
and REFL55.  Steve was concerned that
it is too high.  If we consider this
  
  4895   Tue Jun 28 09:50:03 2011 SureshUpdateIOOWFS2 RF responseThe WFS2  Transimpedance has been
measured to determine if it also suffers
from the same 200MHz oscillations seen in
 WFS2_transimpedance.pdf 
  4896   Tue Jun 28 10:11:13 2011 steveUpdateIOOPower incident on REFL11 and REFL55


   
        
            
  
  4897   Tue Jun 28 11:25:56 2011 AlastairBureaucracyComputersrestarted elogThe manual instructions on the 40m wiki
for restarting wouldn't work.  I killed
the process okay, but then I got an error
  
  4898   Tue Jun 28 14:21:41 2011 kiwamuUpdateIOOsomething wrong ? : Power incident on REFL11 and REFL55The measured
change in the REFL DC power with and without
  
  4899   Tue Jun 28 15:20:08 2011 kiwamuUpdateLSCsensing matrix measurement in PRMI configurationHere is
the result of the measurement of the sensing
 rawmatrix.pngsensmat.png 
  4900   Tue Jun 28 15:23:21 2011 steveUpdateElectronicsCoilcraft RF-design kits are restockedOur design kits are full again. They are
waiting for a new brilliant PD design.
 P1070917.JPGP1070915.JPG 
  4901   Tue Jun 28 16:52:37 2011 SonaliUpdateGreen LockingRouting of fibre to PSL complete.1. Suresh and I completed the alignment
of the fibre and the three mirrors on the
ETMY table.
 coupled_fibre.jpgthe_fibre_route.jpgETMY_aftr_fibre_coupling2.png 
  4902   Tue Jun 28 21:05:05 2011 JamieUpdateSUSSUS control model updatedI have updated the sus_single_control model,
adjusting/cleaning up/simplifying the LSC/POS
input signals, and routing new signals to
  
  4903   Tue Jun 28 22:07:46 2011 JamieHowToSAFETYEurocrate extender card fried (ie. Jamie did a very bad thing)IMPORTANT ELECTRONICS SAFETY
LESSON TO FOLLOW
Yesterday,
  
  4904   Tue Jun 28 22:36:04 2011 JamieUpdateSUSChecking binary switching of SUS whitening filterI have been checking the binary output
switching for the SUS whitening filters.
It appears that the whitening switching is
 botest.py 
  4905   Wed Jun 29 00:35:36 2011 KojiUpdateLSCnew LSC overview screen 80% doneNew
LSC screen is 80% completed.
It is now accessible from the LSC
 LSC_OVERVIEW.png 
  4906   Wed Jun 29 01:23:21 2011 haixingUpdateSUSissues in the current quad maglev systemHere I show several issues that we have
encountered in the quad magnetic levitation
system. It would be great if you can give
 config_2.png 
  4907   Wed Jun 29 11:13:13 2011 JenneUpdateSUSissues in the current quad maglev system


   
        
            
  
  4908   Wed Jun 29 11:25:07 2011 NicoleSummarySUSWeekly Summary of WorkUpdate of Week
3 Work:
  
  4909   Wed Jun 29 11:45:54 2011 steveUpdateGeneralwhere are we storing PDs ?Photo diodes stored in the east arm cabinet
E4:  ALL PDs  meet here, fast 
or slow......
 P1070921.JPG 
  4910   Wed Jun 29 12:20:53 2011 kiwamuUpdateLSCsensing matrix measurement in PRMI configurationOf course
I made a mistake in my calculation of the
  
  4911   Wed Jun 29 13:56:42 2011 kiwamuUpdateGeneralminutes of 40m meeting    meeting.graffle.pdf 
  4912   Wed Jun 29 14:43:12 2011 KojiUpdateLSCLSC model updatedLSC model has been updated and running,
- Now the power and signal recycling
cavity lengths are named "PRCL"
  
  4913   Wed Jun 29 22:35:06 2011 NicoleSummarySUSCompleted Quad photodiode Box Circuit DiagramsI have finished
drawing the circ
 summingcircuit.jpgQPDYcircuit.jpgQPDX_2circuit.jpg 
  4914   Wed Jun 29 22:50:02 2011 ranaUpdateIOOmisc. MC workToday
I wanted to investigate the MC Length path
  
  4915   Thu Jun 30 00:58:19 2011 KojiSummaryLSCLSC whitening filter test[Jenne, Koji]
We have tested the LSC whitening
filters. In summary, they show the transfer
 chans_24_31_WeirdPhase.pdfOctopus.jpgTest_Inputs_Plugged_In.jpgContec_Tester_Board.jpg 
  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
  
  4917   Thu Jun 30 03:26:40 2011 kiwamuUpdateABSLstatus updateStatus
update of the absolute length (ABSL) measurement:
  
  4918   Thu Jun 30 06:54:07 2011 josephbUpdateCDSModified the automated scripts for producing model webviewsDave Barker pointed out last week that
the webview of our simulink model files,
generated from the installed models (i.e.
  
  4919   Thu Jun 30 07:42:48 2011 SureshUpdateIOOAP Table Power levelsI measured the power in various beams on
the AP table to check and see if any beam
is having too much power. 
 AS-lowP_state.pdfAS-highP_state.pdf 
  4920   Thu Jun 30 08:18:08 2011 SureshUpdateIOOThe resonances and notches on WFS1 have been tuned.As noted before the  resonances had
to be tuned to the 29.5 MHz ( or rather 29.485
MHz to match with the Wenzel) and notches
 WFS1_tuned.pdf 
  4921   Thu Jun 30 11:36:54 2011 JamieUpdateSUSRe: ITMX whitening, ETMX left free swinging

    
        
  
  4922   Thu Jun 30 11:40:21 2011 JamieUpdateIOORe: misc. MC work


   
        
            
  
  4923   Thu Jun 30 14:11:55 2011 kiwamuUpdateABSLa photo of ABSL setup on the AP tableHere
is a picture of the latest ABSL setup at
the east part of the AP table.
 ABSLsetup.png 
  4924   Thu Jun 30 17:24:46 2011 steveUpdateSAFETYsafety interlocks Lightwave M126-1064-700 lasers  sn415 
at east end of the Y arm and  sn201
at the AP table  are connected individually 
 P1070949.JPGP1070948.JPG 
  4925   Thu Jun 30 21:00:20 2011 kiwamuUpdateABSLfine alignment done(Just a quick report)
The
fine alignment of the ABSL laser injection
  
  4926   Thu Jun 30 21:55:16 2011 ranaConfigurationDAQNDS2 conf changeAs I recently had trouble getting all of
the SUS SENSOR channels at once from NDS2,
I asked J.Z. for help. He found that the
 Untitled.png 
  4927   Fri Jul 1 07:01:23 2011 SureshUpdateIOOWFS2 resonances and installationThis was the WFS whose photodiode was repaced
as the old one was found to be damaged. 
I retuned the resonances and the
 WFS2new.pdf 
  4928   Fri Jul 1 11:47:25 2011 ranaUpdateIOOWFS2 resonances and installationWhat is implicit
in Suresh's entry is that we decided to run
 Screen_shot_2011-07-01_at_11.13.01_AM.png 
  4929   Fri Jul 1 16:01:48 2011 JamieUpdateSUSETM binary whitening switching fixedI have fixed the binary whitening switching
for the ETMs (ETMX and ETMY).  See below
for a description of what some of the issues
  
  4930   Fri Jul 1 18:41:53 2011 JamieUpdateSUSCore optic sus damping controllers normalizedI found many of the core optic (ETMs, ITMs,
BS, PRM, SRM) suspension DOF damping controllers
(SUSPOS, SUSPIT, SUSYAW, SUSSIDE) to be in
  
  4931   Fri Jul 1 18:48:13 2011 JamieUpdateSUSETMY sus controller found to be in a bad stateI'm not sure what happened to ETMY SUS,
but it was in a pretty bad state.  Bad
burt restore, I would guess.
  
  4932   Fri Jul 1 18:54:34 2011 JamieUpdateSUSETMY binary whitening switching confirmed to be fixedAfter finally figuring out what was messed
up with ETMY I was able to get good measurements
  
  4933   Fri Jul 1 20:22:24 2011 ranaUpdateSUSETMY sus controller found to be in a bad stateActually, ETMY was the only good one. They
should all have the 30 Hz High pass as the
damping filter. I think these details are
  
  4934   Fri Jul 1 20:26:29 2011 ranaSummarySUSAll SUS Peaks have been fit        
MC1    MC2   
MC3    ETMX   ETMY  
 Screen_shot_2011-07-01_at_8.17.22_PM.png 
  4935   Sun Jul 3 21:18:06 2011 ranaUpdateComputer Scripts / ProgramsstatScreen scripts dead since Feb 4 / now revivedThis
CSHRC mangling on Feb 4 did more than
re-arrange FB binaries.
  
  4936   Mon Jul 4 14:27:35 2011 kiwamuSummaryGeneralWeekly reportSummary
of the week ending July 3rd.  
  
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