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  40m Log, Page 116 of 344  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  3289   Mon Jul 26 10:02:42 2010 josephbUpdateCDSRerouted RFM around c1lsc, took RFM card out of c1lscIf you're refering to just the medm screen, 
those can be restored from the SVN. 
As we're moving to a new directory structure,
  
  3290   Mon Jul 26 10:04:24 2010 steveUpdateGeneralInitial Crane Inspection reveals flaws: wiring, oil and imbalance


   
        
            
 2500.JPGsedrum.JPG 
  3292   Mon Jul 26 12:31:36 2010 kiwamuUpdateCDSfront end machine for the X endA brief
report about the new front end machine "C1ISCEX"
installed on the X end (old Y end).
  
  3293   Mon Jul 26 14:24:46 2010 josephb, kiwamuUpdateCDSRFM test take 1Kiwamu and I strung a temporary RFM fiber
from the c1iscex machine (in the new 1X9
rack) to the c1sus machine (in the new 1X4
  
  3294   Mon Jul 26 20:12:18 2010 kiwamuUpdateSUSOSEMs on PRM [Alberto and Kiwamu]
We installed the OSEMs to the new PRM.
 DSC_2279.JPG 
  3295   Mon Jul 26 20:30:35 2010 JenneUpdateSUS2 Tip Tilts suspended and balanced[Koji, Jenne]
We were on Team Cleanroom, while
Kiwamu and Alberto were on Team Chamber. 
  
  3297   Tue Jul 27 11:43:24 2010 steveUpdatePEMair quality is bad todayThe lab is at 30,000 and Pasadena air is
at 1.1 e+6 particles /cf min of 0.5 micron.
 pemtoday.jpg 
  3298   Tue Jul 27 12:02:31 2010 GopalUpdateOptic StacksPreliminary Transfer Function Measurements on MC1/MC3I have successfully
completed a preliminary transfer function
 MC1_MC3_FDA_1.pngMC1_MC3_FDA_2.pngMC1_MC3_FDA_3.pngMC1_MC3_FDA_4.pngMC1_MC3_FDA_5.png 
  3301   Tue Jul 27 18:42:57 2010 GopalUpdateOptic StacksBode Magnitude Plot and ConcernsI  completed
the frequency domain analysis mentioned previously
 Bode_Mag_MC1_MC3.png 
  3302   Tue Jul 27 21:38:21 2010 kiwamuUpdateSUSinstallation of in-vac optics[Alberto and Kiwamu] 
We put the PRM back approximately on
 DSC_2284.JPGDSC_2291.JPG 
  3303   Tue Jul 27 23:46:45 2010 JenneUpdateSUSQ measurements of 2 TTs[Koji, Jenne]
We took measurements of the Q of
all the modes that we could think of for
  
  3304   Wed Jul 28 01:05:44 2010 ranaUpdateSEIBode Magnitude Plot and Concerns1) Gravity has to be included because the
inverted pendulum effect changes the resonant
frequencies. The deflection from gravity
  
  3305   Wed Jul 28 12:09:06 2010 Sharmila,KatharineUpdateWIKI-40M UpdateMaglevWe have modeled our maglev setup in simulink
but we have a few corrections to make since
the system goes into undamped oscillations
 Picture_1.png 
  3306   Wed Jul 28 12:16:03 2010 GopalUpdateSEIBode Magnitude Plot and Concerns

    
        
 Bode_Disp_MC1_MC3_y.png 
  3307   Wed Jul 28 12:31:00 2010 GopalUpdateWIKI-40M Update7.21.10-7.28.10 Weekly UpdateSummary of this week's activities:
7/21: Frequency Domain Analysis of
rectangular bar; discussed with Koji how
  
  3308   Wed Jul 28 12:53:32 2010 channaUpdateComputersnds data listenerFor the sake of writing it down: /cvs/cds/caltech/apps/linux64/rockNDS   
  3309   Wed Jul 28 13:06:47 2010 RazibUpdatePhase Camera Attached are some calculation that I did
previously for the phasecamera setup. This
shows the nature of the beat signal that
 mean_100_snaps.pngstd_100_snaps.pngphase_cam_calc.pdf 
  3310   Wed Jul 28 14:34:29 2010 channaUpdateComputersinstallation on allegraI have done the following on allegra and
rosalba:
[root@allegra caltech]# yum install
  
  3311   Wed Jul 28 14:54:56 2010 steveUpdateSAFETYevacuation drill at the 40mHead count at the evacuation drill today.
I checked  alarms and flashers 
at room 104,102,101, 103, 105 and 107. They
 P1060520.JPG 
  3312   Wed Jul 28 16:42:21 2010 steveUpdateGeneralCrane gear box cheched


   
        
            
 P1060503.JPGP1060511.JPGP1060515.JPGP1060517.JPG 
  3313   Wed Jul 28 17:32:37 2010 kiwamuUpdateSUSinstallation of in-vac optics[Jenne, Koji and Kiwamu]
We have installed two steering mirrors
  
  3314   Wed Jul 28 18:24:57 2010 JenneUpdateGreen Locking2 Green Periscopes have mirrors, aligned[Koji, Jenne, Kiwamu]
This is to describe the work that
went on in the Cleanroom today.  Kiwamu's
  
  3315   Thu Jul 29 10:39:43 2010 kiwamuUpdateSUSRe: installation of in-vac opticsI updated the last entry   
  3316   Thu Jul 29 11:33:38 2010 kiwamuUpdateCDSPCI5565 driver for RFM Yesterday I installed a PCI-5565
driver on new C1SUS in order to test the
  
  3319   Thu Jul 29 12:31:24 2010 josephbUpdateCDSWorking DAC, working IOP - next up SUSOk, after a few minutes of talking to Alex,
I got the correct "GUI syntax"
through my head, and we now have a simple
 Simple_Green_Control.png 
  3321   Thu Jul 29 15:35:21 2010 josephb, kiwamuUpdateCDSWorking out ADC/DAC/BO wiringWe are currently using the SUS wiring diagram
found on Ben Abbott's page (link here)
to determine the ADC/DAC/BO channel numbers
  
  3322   Thu Jul 29 17:11:16 2010 GopalUpdateCOMSOL TipsIncluding Gravity in COMSOL[Gopal, Jan]
  
  3323   Thu Jul 29 17:12:48 2010 josephb, kiwamuUpdateCDSRe:Working out ADC/DAC/BO wiringWe
have installed  4 BO boards, 3 DAC boards
and 1 ADC board for new C1SUS.
They
 DSC_2302.png 
  3325   Thu Jul 29 21:13:39 2010 DmassUpdateGreen Lockingwaist positon of Gaussian beam in PPKTP crystals


   
        
            
  
  3326   Thu Jul 29 22:08:32 2010 AlbertoUpdateSUSMore optics installed on the BS table[Koji, Steve, Kiwamu, Alberto]
- This afternoon we installed
a few new optics on the BS table: GR_PBS,
  
  3327   Thu Jul 29 22:58:25 2010 kiwamuUpdateGreen Lockingwaist positon of Gaussian beam in PPKTP crystals- As you said, I just calculated the waist
position in the crystal because the speed
of light changes in a medium and eventually
  
  3328   Fri Jul 30 00:02:15 2010 DmassUpdateGreen Lockingwaist positon of Gaussian beam in PPKTP crystals


   
        
            
  
  3329   Fri Jul 30 02:54:04 2010 KojiUpdate40m UpgradingMore optics installed on the BS tableJuly 29 Thu [Steve, Alberto, Kiwamu,
Koji]
We
  
  3330   Fri Jul 30 09:51:58 2010 kiwamuUpdateGreen LockingRe: waist positon of Gaussian beam in PPKTP crystalsOkay, I guess I understand what you want
to know. I did the following steps.
1. calculated the conversion efficiency
 efficiency_waist_edit.pngPPKTPmode.pngPSL_doubling.pngmode_in_PPKTP.png 
  3333   Fri Jul 30 14:53:09 2010 steveUpdateGeneralPSL table leg upgrade


   
        
            
 psllegs.PDF 
  3334   Fri Jul 30 17:24:22 2010 JenneUpdatePEMGuralps back in the 40mI brought the GUR2 seismometer back from
Bridge so I can get some more MC/Seismic
data during the next week while we're pumped
  
  3340   Sat Jul 31 10:12:05 2010 kiwamuUpdateVACRe: How to stop and start slow pumpdownI resumed the pumping down. It started
from 9:55 am.
  
  3341   Sat Jul 31 14:59:33 2010 kiwamuUpdateVACRe: How to stop and start slow pumpdownI stopped the pumping at 14:50 pm
because I was going back home. I did the
  
  3342   Sat Jul 31 17:37:36 2010 josephbUpdateCDSCables needed for CDS testLast Thursday, Kiwamu and I went through
the cabling necessary for a full damping
test of the vertex optics controled by the
  
  3343   Sat Jul 31 22:35:01 2010 KojiUpdateVACVac-P1 still 1.2mtorrI resumed the pumping from 19:00.
Now the valve RV1 is full open. But
the pumping is really slow as we are using
  
  3344   Sun Aug 1 18:50:35 2010 KojiUpdateVACP1 = 0.48 torrI resumed the pumping today. Now the pressure
is 0.48 torr. The pump was stopped.

  
  3348   Mon Aug 2 17:12:28 2010 KojiUpdateGeneralLab schedule for the week of Aug. 2Aug
2 Mon - 5 Thu WFS work (Nancy)
 PSL_work_schedule.pdf 
  3349   Mon Aug 2 18:02:46 2010 JenneUpdatePEMSeismometer Update: Still not good, but perhpas getting betterToday's seismometer diagnosis activities
are still underway, this is just an update
(since I did some reboots):
  
  3350   Mon Aug 2 21:52:57 2010 KojiUpdateIOOMC is running at the full power[Nancy and Koji]
We restored the full power operation
of the MC.
  
  3351   Tue Aug 3 01:51:01 2010 JenneUpdatePEMSeismometer Update: Still not good, but perhaps getting better


   
        
            
  
  3352   Tue Aug 3 03:15:06 2010 nancyUpdateIOOMC back to locked modeI turned the WFS gain to 0.02 back, and
the MC is locked, the data for the seismic
motion might be meaningful nowforth.
  
  3353   Tue Aug 3 11:17:10 2010 kiwamuUpdateCDSDiagrams for Cables needed for CDS testCurrent Wiring Setup for the Suspension
Controls
 sus_wiring.pngsus_new_wiring.pngsus_missing_stuff.png 
  3354   Tue Aug 3 11:50:16 2010 JenneUpdatePEMSeismometer Problem Tracked downAfter some cable swapping this morning,
I have determined which cable is bad. 
It's the Gur1 cable between the seismometer
  
  3356   Wed Aug 4 03:01:56 2010 JenneUpdatePEMCatastrophic Cable Failures


   
        
            
  
  3357   Wed Aug 4 11:10:28 2010 nancyUpdateIOOMode Cleaner WFSYesterday, I started twiddling with the
Mode Cleaner at about 2 pm.
  
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