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  40m Log, Page 137 of 339  Not logged in ELOG logo
IDup Date Author Type Category Subject Text Attachments
  6846   Thu Jun 21 12:13:35 2012 JenneUpdatePEMflow bench must be running all times

    

       
            
  
  6847   Thu Jun 21 12:56:49 2012 yutaUpdateLockingETMX 1064 trans camera

    

       
            
 Xarm_EndTableLayout_NewTransCamera.png 
  6848   Thu Jun 21 15:00:55 2012 steveUpdateSAFETYSURFs 2012 safety trainingMasha, Eric, Yaakov, Liz and Sasha received
40m specific basic safety training.
 surfs2012.JPG 
  6849   Thu Jun 21 15:36:51 2012 yutaUpdateLockingX arm alignmentI aligned X arm so that the beam spot comes
roughly on the center.
  
  6850   Thu Jun 21 20:07:18 2012 JamieUpdateGreen LockingImproved beatbox returnsI've reinstalled the beatbox in the 1X2
rack.  This improved version has the
X and Y arm channels stuffed, but just one
  
  6851   Fri Jun 22 02:21:57 2012 JenneUpdateGreen Locking2 arm ALS - Success!!!![Yuta, Jenne]
We
 P6210140.AVIspeedy_gonzales-5257.jpg 
  6852   Fri Jun 22 03:37:42 2012 KojiUpdateGreen Locking2 arm ALS - Success!!!!Are
these correct?
1. It is a nice work.
  
  6853   Fri Jun 22 10:52:18 2012 yutaUpdateGreen Locking2 arm ALS - Success!!!!Answers to questions from Koji.
  
  6854   Fri Jun 22 13:37:17 2012 JenneUpdateComputersfb lost connection...Perhaps related to the fact that Jamie
is copying a lot of stuff over the network
to back up Ottavia before converting her
  
  6855   Fri Jun 22 17:51:04 2012 JenneUpdateCamerasGreen Trans camera repositioning attempt[Yuta, Jenne]
We tried to find a different place,
not in the main green transmitted beam path,
  
  6856   Fri Jun 22 19:52:47 2012 JamieUpdateComputersottavia reconfigured as CDS workstationottavia has been reinstalled with Ubuntu
10.04 LTS, and has been configured as a CDS
workstation.
 workstation-setup.sh 
  6857   Fri Jun 22 20:00:14 2012 JamieOmnistructureElectronicstwo RG-405 cables ran from 1X2 rack to control room[Yaakov, Eric, Jenne, Yuta]
Two of our surfs, Yaakov and Eric,
pulled two unused RG-405/SMA cables that
  
  6858   Fri Jun 22 20:58:15 2012 JenneUpdateGreen LockingCalibrated POX spectra - Xarm stabilized by ALS[Yuta, Jenne, Koji]
We stabilized the Xarm using the
ALS and took a spectrum of POX as our out
 POX11_I_ERR_calib_residualCavityMotion_better.pdf 
  6859   Sat Jun 23 02:29:18 2012 yutaUpdateGreen LockingX arm mode scan resultsX
arm finesse is 416 +/- 6, mode-matching ratio
is 91.2 +/- 0.3%
 XarmScan20120623.pngfine8FSRscanXarm.png 
  6860   Sat Jun 23 18:44:15 2012 steveUpdateGeneralpower surge has no effect on the labI was notified by CIT Utilities that there
was a power surge or short power outage this
after noon.
  
  6861   Sat Jun 23 19:57:22 2012 yutaSummaryComputersc1ioo is downI tried to restart c1ioo becuase I can't
live without him.
  
  6862   Sun Jun 24 00:10:45 2012 yutaUpdateGreen Lockingcurrent beat electronicsI moved amplifiers for beat PD at PSL table
to 1X2 rack. Current beat setup from PD to
ADC is shown below. Setup for X beat and
 beatsetup20120623.png 
  6863   Sun Jun 24 23:42:31 2012 yutaUpdateComputer Scripts / ProgramsPMC lockerI made a python script for relocking PMC.
It currently lives in /opt/rtcds/caltech/c1/scripts/PSL/PMC/PMClocker.py.
  
  6864   Mon Jun 25 08:21:40 2012 steveUpdateGeneralAC power disturbance on Sat

    

       
            
 powerdisturbed.png 
  6865   Mon Jun 25 10:35:59 2012 JenneSummaryComputersc1ioo is down

    

       
            
  
  6866   Mon Jun 25 11:23:14 2012 JenneUpdateComputerstdsavg not working

    

       
            
  
  6867   Mon Jun 25 11:27:13 2012 JamieSummaryComputersc1ioo is down

    

       
            
  
  6868   Mon Jun 25 15:07:49 2012 yutaUpdateIOOMC beam spot trendI adjusted MC WFS offsets using /opt/rtcds/caltech/c1/scripts/MC/WFS/WFS_FilterBank_offsets.
Beam spot positions on MC mirrors
 MCdecenter.png 
  6869   Mon Jun 25 15:19:07 2012 YaakovUpdatePEMAdded microphone channels, moved accelorometer channelsJenne and I renamed the mic channels Den
created (elog
6664) to MIC_1, MIC_2, etc from the original
 channels.png 
  6870   Mon Jun 25 16:21:10 2012 KojiSummaryIOOSelection of motorized mirror mountsI am considering to have 3 to 6 motorized
optical mounts at the PSL and end tables
for remote beam steering.
  
  6871   Mon Jun 25 17:48:27 2012 yutaUpdateComputer Scripts / Programsscript for finding IR resonance using ALSI made a python script for finding IR resonance
using ALS. It currently lives in /opt/rtcds/caltech/c1/scripts/ALS/findIRresonance.py.
 findIRresonance20120625.png 
  6872   Mon Jun 25 21:54:52 2012 DenUpdateComputer Scripts / ProgramsPMC locker

    

       
            
  
  6873   Tue Jun 26 00:52:18 2012 yutaUpdateComputer Scripts / ProgramsPMC locker

    

       
            
  
  6874   Tue Jun 26 01:30:13 2012 yutaSummaryGreen Lockingsimultaneous hold and release of the arm (aka two arm ALS)To get the feeling of the master of IFO,
I;
 ALSboth20120625_2withAS.png 
  6875   Tue Jun 26 22:37:43 2012 yutaUpdateIOOenergized OMC stages[Koji, Yuta]

We checked that PZTs between SRM and
  
  6876   Wed Jun 27 03:43:52 2012 yutaSummaryIOOhow to improve mode matching to armsFrom the mode scan measurements of the
arms(elog #6859),
~6% of mode-mismatch comes from 2nd-order
 modematchMCtoARM_design.pngmodematchMCtoARM_MMT1MMT2longer.png 
  6877   Wed Jun 27 10:27:09 2012 ranaSummaryIOOhow to improve mode matching to armsThe MC waist is correct as is the arm RoCs.
Most likely the error is in the telescope
length or its distance from the MC. Jenne
  
  6878   Wed Jun 27 11:27:49 2012 LizUpdate First Week Update!This week, the
other SURF students and I got          
  
  6879   Wed Jun 27 11:33:28 2012 MashaUpdateGeneralFirst Week UpdateThis week I wrote Matlab code, most of
which can be found in /users/masha
First, I wrote a simulation seismicFilter.m
  
  6880   Wed Jun 27 11:35:06 2012 SashaSummaryComputer Scripts / ProgramsSURF - Week 1 - SummaryI started playing with matlab for the first
time, accurately simulated a coupled harmonic
oscillator (starting from the basic differential
 Screen_Shot_2012-06-27_at_11.27.10_AM.pngScreen_Shot_2012-06-27_at_11.26.57_AM.pngScreen_Shot_2012-06-27_at_11.27.29_AM.png 
  6881   Wed Jun 27 14:12:44 2012 EricSummaryGeneralSURF Week 1I started work familiarizing myself with
the ELOG and some of the control systems
at the 40m. I spent a fair bit of time gaining
  
  6882   Wed Jun 27 14:18:30 2012 Yaakov SummarySTACISFirst week summaryThe beginning of my first week was spent
at various orientations and safety meetings,
some for general SURF and some more specific
  
  6883   Wed Jun 27 15:10:34 2012 JamieUpdateComputer Scripts / Programs40m summary webpages moveI have moved the summary pages stuff that
Duncan set up to a new directory that it
accessible to the nodus web server and is
  
  6884   Wed Jun 27 16:23:12 2012 yutaUpdateIOOAS and REFL on AP table alignedI touched steering mirrors for AS and REFL
at AP table.
AS beam and REFL beam now hits cameras
  
  6885   Wed Jun 27 23:54:21 2012 yutaUpdateComputer Scripts / Programsimage capturing scriptMike J. came tonight and he fixed Sensoray
(elog #6645).
He recompiled it and fixed it.
 AS_1024901004.bmp 
  6886   Thu Jun 28 00:50:48 2012 yutaUpdateLockingPRMI work started, commissioning planMy goal for tonight was to lock PRMI,
 grasp the current situation
by my eye,
 POP_1024903948.bmpREFL_1024903929.bmpAS_1024903921.bmp 
  6887   Thu Jun 28 01:44:57 2012 KojiUpdateLockingPRMI work started, commissioning planTo be fair, this is Kiwamu's idea. And
nothing is reasonable before it is confirmed
quantitatively.
  
  6888   Thu Jun 28 15:21:02 2012 ranaUpdateLockingPRMI work started, commissioning plan 
 Cycling the vacuum is easy.
Why not vent starting Thursday evening and
  
  6889   Thu Jun 28 20:59:28 2012 yutaBureaucracyLockingvent for PRC check, TOMORROW!Koji, Jamie and I talked together and I decided to VENT TOMORROW   
  6890   Thu Jun 28 22:08:57 2012 JenneBureaucracyLockingvent for PRC check, TOMORROW!

    

       
            
  
  6891   Fri Jun 29 01:49:36 2012 yutaBureaucracyLockingvent for PRC check, TOMORROW!

    

       
            
  
  6892   Fri Jun 29 02:17:40 2012 yutaUpdateIOOprep for the vent - beam attenuating[Koji, Jamie, Yuta]

We attenuated the incident beam (1.2
  
  6893   Fri Jun 29 03:21:32 2012 yutaUpdateGeneralprep for the vent - others1. Turned off high voltage power supplies
for PZT1/2 (input PZTs) and OMC stage 1/2.
They live in 1Y3 rack and AUX_OMC_NORTH rack.
 MEDMscreenshotswithCOW_20120629.png 
  6894   Fri Jun 29 11:02:00 2012 steveUpdateVACthe vent is at 500 torr

    

       
            
 sussum.pngpzt.png 
  6895   Fri Jun 29 13:11:31 2012 steveUpdateVAC40m IFO at atm The 4 hrs vent plot at 3 torr/min
rate.
Nitrogen was used from 1e-6 torr
 vent06292012.png40m@ATM.png 
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