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  40m Log, Page 36 of 344  Not logged in ELOG logo
ID Date Author Typedown Category Subject Text Attachments
  2946   Tue May 18 14:30:31 2010 josephbUpdateCDSLSC.mdl problem found and fixedAfter having checked old possibilities
and deciding I wasn't imagining the lsc.mdl
file not working, but working as another
  
  2948   Tue May 18 16:19:19 2010 josephbUpdateCDSWe have two new IO chassisWe have 2 new IO chassis with mounting
rails and necessary boards for communicating
to the computers.  Still need boards
  
  2949   Tue May 18 16:44:35 2010 KojiUpdateIOOFirst steps toward MC mode measuringHere is the upadted list http://lhocds.ligo-wa.caltech.edu:8000/40m/Upgrade_09/Optics

  
  2950   Tue May 18 23:03:08 2010 JenneUpdateIOONo real progress....[Jenne, Kevin]
No real progress today.  We
opened the chambers and again tried to lock
  
  2952   Wed May 19 16:00:18 2010 JenneUpdateIOOHooray! We locked the MC! (and some other stuff)[Jenne, Kevin]
We opened up the MC chambers again,
and successfully got the MC locked today! 
  
  2953   Wed May 19 16:09:11 2010 josephbUpdateCDSRacks to small for IO Chassis railsSo I discovered the hard way that the racks
are not standard width, when I was unable
to place a new IO chassis into the racks
  
  2954   Wed May 19 22:28:05 2010 KojiUpdateIOOHooray! We locked the MC! (and some other stuff)Good! What was the key?
The MC2 spot looks very high, but
don't believe the TV image. Believe the result
  
  2956   Thu May 20 12:10:44 2010 kiwamuUpdatePhotosETMY end table I updated the photo of ETMY end table
on the wiki.
http://lhocds.ligo-wa.caltech.edu:8000/40m/Optical_Tables
 ETMY_s.png 
  2958   Thu May 20 13:12:28 2010 josephbUpdateCDSPreparations for testing lsc,lsp, scy,spy togetherIn /cvs/cds/caltech/target/fb modified:
master: cleaned up so only io1 (IO
processor), LSC, LSP, SCY, SPY were listed,
  
  2959   Thu May 20 13:29:40 2010 kiwamuUpdateGreen Lockingmode profile at PPKTP crystal I measured again the mode profile
of the beam going through the PPKTP crystal
by using the beam scan.
 PPKTPmode.png 
  2960   Thu May 20 14:18:59 2010 kiwamuUpdateGreen Lockingmode profile of 40m cavityThe mode
profile of the green beam going through 40m
 MMT40mcavity.png 
  2961   Thu May 20 20:03:37 2010 JenneUpdateSAFETYDon't walk down the Y(new convention) arm tonight!Please don't go
down the Yarm (Old Xarm) for right now, or
  
  2962   Fri May 21 00:21:24 2010 JenneUpdateSAFETYDon't walk down the Y(new convention) arm tonight!All clear.

  
  2963   Fri May 21 00:30:44 2010 JenneUpdateVACTP3 fore pump is very loud[Jenne, Kiwamu, and Steve via phone]
Around 9:30pm, Kiwamu and I came
back from dinner, and were getting ready
  
  2964   Fri May 21 00:51:06 2010 JenneUpdateIOOFirst MC mode measuring (hopefully) done[Jenne, Kiwamu, Steve]
Round 1 of measuring the MC mode
is pretty much done.  Yay.
  
  2966   Fri May 21 11:56:34 2010 AlbertoUpdate40m Upgrading40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue.I update my old 40mUpgrade Optickle model,
by adding the latest updates in the optical
layout (mirror distances, main optics transmissivities,
 7x 
  2967   Fri May 21 14:31:46 2010 josephb,alexUpdateCDSNew computer and IO chassis working in 1X4Alex brought over a ADC, DAC, and PCIe
card which goes into the computer and talk
to the IO chassis.  We tried installing
  
  2968   Fri May 21 16:24:11 2010 KojiUpdateLSC40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue.1. Give us the designed arm length. What
is the criteria?
2. The arm lengths got shorter as
  
  2971   Fri May 21 16:41:38 2010 Alberto, JoUpdateComputersIt's a boy!Today the new Dell computer for the GSCS
(General SURF Computing Side) arrived.
We put it together and hooked it
  
  2973   Mon May 24 10:03:14 2010 ranaUpdateLSC40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue. 
 If you have a working 40m Optickle
model, put it in a common place in the SVN,
  
  2974   Mon May 24 11:32:05 2010 ranaUpdateLSC40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue.


   
        
            
 reflRFpowerVsArmLength.png 
  2975   Mon May 24 14:28:35 2010 kiwamuUpdateElectronicsbad power supply of a vme rackIn this morning I found daqawg didn't work.
After looking for the cause, I found
  
  2976   Mon May 24 16:34:22 2010 KevinUpdatePSLND Filters for 2W Beam ProfileI tried to measure the beam profile of
the 2W laser today but ran into problems
with the ND filters. With the measurements
  
  2977   Tue May 25 00:10:24 2010 ZachUpdateIOOIMC table leveled againThe IMC table had to be leveled again,
for two reasons: 1) It was un-leveled when
Jenne and Kiwamu removed an extra beam dump
  
  2978   Tue May 25 07:22:59 2010 kiwamuUpdateElectronicsbad power supply of a vme rackNotes on May 25th
  
  2979   Tue May 25 07:58:23 2010 kiwamuUpdateelogelog downI found the elog got down around 7:30 am
in this morning.
So I restarted it by running the
  
  2981   Tue May 25 10:06:09 2010 kiwamuUpdateElectronicsbad power supply of a vme rack I
got a VME crate from Peter's lab. It is already
  
  2983   Tue May 25 16:40:27 2010 josephb, alexUpdateCDSFinally tracked down why new models wouldn't talk to each otherThe problem with the new models using the
new shared memory/dolphin/RFM defined as
names in a single .ipc file.
  
  2984   Tue May 25 17:04:37 2010 KevinUpdate Beam Profile After Mode CleanerI fit the data from the beam profile that
Jenne measured on 5/21/2010. The distances
are measured from halfway between MC1 and
 mcfit.pngmcerrors.png 
  2985   Tue May 25 17:09:22 2010 KojiUpdateIOOBeam Profile After Mode CleanerVery nice as usual. Can you add the curve
to show the ideal mode of the MC on the profile
plot?
  
  2986   Tue May 25 17:22:56 2010 KevinUpdateIOOBeam Profile After Mode Cleaner

    
        
 mcfit.png 
  2987   Wed May 26 00:50:16 2010 JenneUpdateIOOMirrors moved in prep for round 2 of MC mode measuring[Jenne, Kevin, Kiwamu]
We moved some optics in preparation
for measuring the MC mode after the first
  
  2988   Wed May 26 04:14:21 2010 kiwamuUpdateGreen LockinglockedI guess
I succeeded in locking of the cavity with
 OLTF_endPDH.png 
  2989   Wed May 26 10:58:29 2010 josephbUpdateCDSNew RCG checkout for use with all machines plus some issuesNow that we have multiple machines we'd
like to run the new front end code on, I'm
finding it annoying to have to constantly
  
  2990   Wed May 26 12:59:26 2010 josephbUpdateCDSCreated sus, sup, scx, spx modelsI created the sus model, which is the suspension
controller for ITMX, ITMY, BS, PRM, SRM. 
I also created sup, which is the suspension
  
  2991   Wed May 26 14:28:01 2010 KojiUpdateIOOMirrors moved in prep for round 2 of MC mode measuringThat's true. But I thought that you measured
the mode after those optics and the effect
of them is already included.
  
  2992   Wed May 26 14:38:02 2010 KojiUpdateGreen LockinglockedCongratulation! Probably you are right,
but I could not get this is a real lock or
something else.
  
  2993   Wed May 26 15:34:00 2010 JenneUpdateIOOMirrors moved in prep for round 2 of MC mode measuring


   
        
            
  
  2994   Wed May 26 17:10:09 2010 AlbertoUpdate40m UpgradingRF Generation boxThis is how the RF generation box might
soon look like:
 Visio-frequencyGenerationBox_wiringSchematic.png 
  2997   Thu May 27 02:22:24 2010 kiwamuUpdateGreen Lockingmore details Here are some more plots
and pictures about the end PDH locking with
 stimes.pngspectrum.pngETMX_small.png 
  2998   Thu May 27 08:22:57 2010 AidanUpdateComputersRestarted the elog this morning    
  2999   Thu May 27 09:43:50 2010 ranaUpdateGreen Lockingmore details

    

       
            
  
  3001   Thu May 27 12:52:02 2010 AlbertoUpdate40m UpgradingArm lengths
For both sidebands to be antiresonant
in the arms, the first modulation frequency
  
  3002   Thu May 27 23:59:54 2010 ranaUpdatePEMNew Foam Box installedValera
and I put the 2 Guralps and the Ranger onto
the big granite slab and then put the new
 Untitled.png 
  3003   Fri May 28 00:40:53 2010 ranaUpdatePEMDAQ down Although trends are available, I
am unable to get any full data from in the
past (using DTT or DV). I started the FB's
  
  3005   Fri May 28 10:44:47 2010 josephbUpdatePEMDAQ down

    
        
  
  3006   Fri May 28 11:26:35 2010 JenneUpdatePEMNew Foam Box installed


   
        
            
  
  3007   Fri May 28 11:35:33 2010 josephbUpdateCDSTaking a step backwards to get stuff runningI've modified the lsc.mdl and lsp.mdl files
back to an older configuration, where we
do not use an IO processor.  This seems
 working_lsc_lsp.png 
  3008   Fri May 28 13:17:05 2010 josephbUpdateCDSFixed problem with channel access on c1iscexTalked with Alex and tracked down why the
codes were not working on the new c1iscex
finally.  The .bashrc and .cshrc files
  
  3009   Fri May 28 13:32:01 2010 alberto, kiwamuUpdateVACvacuum workWe started
a vacuum work in this morning. And still
  
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