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ID Date Author Type Category Subjectup Text Attachments
  16081   Fri Apr 23 15:52:19 2021 Ian MacMillanUpdateCDS40m LSC simPlant modelI have attached the framework that I am
using for the full system. Plantframework.pdf
has the important aspects that I will be
 Plant_framework.pdfSimple_Plant.pdfControls.pdf 
  6520   Wed Apr 11 16:33:16 2012 JenneBureaucracyGeneral40m Meeting Action ItemsAction
Items from Last Week:
(non-existant)
  
  6597   Thu May 3 13:35:56 2012 JenneBureaucracyGeneral40m Meeting Action ItemsAction
Items:
IFO
  
  6636   Wed May 9 15:50:13 2012 JenneBureaucracyGeneral40m Meeting Action ItemsI'm combining the IFO check-up list (elog
6595) and last week's action items list
  
  6667   Wed May 23 13:57:11 2012 JenneBureaucracyGeneral40m Meeting Action ItemsPRIORITY
ITEMS:
Align Ygreen beam - 
  
  6668   Wed May 23 20:41:37 2012 SureshBureaucracyGeneral40m Meeting Action Items: Tip-tilts : cabling and electronics

    

       
            
  
  8786   Fri Jun 28 16:19:06 2013 CharlesUpdateISS40m Noise Budget - Seismic Contribution I'm working on developing a full
noise budget for the 40m. To that end, I'll
use measurements from the GUR1 seismometer
 seismic_noise_6-28-13_raw.pngseismic_noise_6-28-13_raw.figseismic_noise_6-28-13_meters.pngseismic_noise_6-28-13_meters.fig 
  14366   Wed Dec 19 00:12:46 2018 gautamUpdateOMC40m OMC DCC nodeI made a node
to collect drawings/schematics for the 40m
OMC, added the length drive for now. We should
  
  3451   Fri Aug 20 17:46:30 2010 ranaUpdatePSL40m PSL Upgrade Layout v0.3http://lhocds.ligo-wa.caltech.edu:8000/40m/PSL/LayoutUpgrade
P-pol = purple
S-pol = red
  
  15323   Sat May 9 17:01:08 2020 YehonathanUpdateLoss Measurement40m Phase maps loss estimationI took the phase maps of the 40m X arm
mirrors and calculated what is the loss of
a gaussian beam due to a single bounce. I
 ITMX_Loss_Map.pdfETMX_Loss_Map.pdfITMX_Phase_Map_(nm).pdfETMX_Phase_Map_(nm).pdf 
  15329   Wed May 13 15:13:11 2020 YehonathanUpdateLoss Measurement40m Phase maps loss estimationKoji pointed out during the group meeting
that I should compensate for local tilt when
I move the beam around the mirror for calculating
 ITMX_Loss_Map.pdfETMX_Loss_Map.pdf 
  15332   Thu May 14 12:21:56 2020 YehonathanUpdateLoss Measurement40m Phase maps loss estimationI finished calculating the X Arm loss using
first-order perturbation theory. I will post
the details of the calculation later.
 ITMX_Loss_Map_Perturbation_Theory.pdfETMX_Loss_Map_Perturbation_Theory(1).pdf 
  15333   Thu May 14 19:00:43 2020 YehonathanUpdateLoss Measurement40m Phase maps loss estimationPerturbation theory:

The cavity modes 
  
  15338   Tue May 19 15:39:04 2020 YehonathanUpdateLoss Measurement40m Phase maps loss estimationI have a serious concern about this low
angle scattering analysis:

Phase maps perturb the spatial
 Mode_power_fraction1.pdf 
  6974   Fri Jul 13 15:49:38 2012 yutaBureaucracyGeneral40m Priority Action ItemsThese are all priority action items need
to be done before I come back (in mid-September).
  
  6222   Wed Jan 25 15:04:41 2012 JenneBureaucracySAFETY40m SOS supplies moved off of cleanroom flow benchBob, Callum and Daphen noted that our keeping
a JDSU HeNe (max power <4mW) is against
somebody's SOP.  So I cleared everything
  
  12220   Tue Jun 28 16:09:41 2016 PrafulUpdateGeneral40m Summary PagesSet up gwsumm on optimus and generated
summary pages from both L1 and C1 data. Still
a few manual steps need to be taken during
  
  2044   Fri Oct 2 17:00:06 2009 AlbertoUpdateGeneral40m Update - Requirements on the 5x Frequency MultiplierHere's the gist of the requirements on
the 5x frequency multiplier for the upgrade
(see attachemnt - despite the preview down
 DesignOfTheMultiplier1-14-15.pdf 
  3072   Sat Jun 12 19:41:04 2010 AlbertoUpdateLocking40m Upgrade Optickle ModelI wrote down the settings according to
which I tuned the optickle model of the 40m
Upgrade.
 optickleIFOworkingpoint.pdf 
  3074   Sun Jun 13 08:28:44 2010 valeraUpdateLocking40m Upgrade Optickle Model In my calculation of the digital
filters of the optical transfer functions
the carrier light is resonant in coupled
  
  3075   Mon Jun 14 07:57:07 2010 albertoUpdateLocking40m Upgrade Optickle Model

    
        
  
  3079   Tue Jun 15 21:28:44 2010 albertoUpdateLocking40m Upgrade Optickle Model


   
        
            
 allTransferFunctions_DARMoff_0.pdfallTransferFunctions_DARM2AS_10pmDARMoffset.pdfJan_DARM2AS.pdf 
  6733   Thu May 31 17:47:25 2012 SureshOmnistructureGeneral40m Wireless NetworkMike Pedraza came by today to install a
new wireless network router configured for
the 40m lab network.  It has a 'secret'
 40m_Wifi.png 
  6741   Fri Jun 1 10:00:03 2012 steveOmnistructureGeneral40m Wireless Network

    

       
            
  
  3106   Wed Jun 23 15:15:53 2010 josephbSummaryComputers40m computer security issue from last night and this morningThe following is not 100% accurate, but
represents my understanding of the events
currently.  I'm trying to get a full
  
  3869   Fri Nov 5 15:20:18 2010 josephb, alexSummaryCDS40m computer slow down solvedProblem:
The 40m computers were responding
sluggishly yesterday, to the point of being
  
  3872   Fri Nov 5 21:49:12 2010 ranaSummaryCDS40m computer slow down solved


   
        
            
  
  3877   Sat Nov 6 16:13:14 2010 ranaSummaryCDS40m computer slow down solvedAs part of the effort to debug what was
happening with the slow computers, I disabled
the auto MEDM snapshots process that Yoichi/Kakeru
  
  13262   Mon Aug 28 16:20:00 2017 gautamUpdateCDS40m files backup situationThis elog is meant
to summarize the current backup situation
  
  13263   Mon Aug 28 17:13:57 2017 ericqUpdateCDS40m files backup situationIn addition to bootable full disk backups,
it would be wise to make sure the important
service configuration files from each machine
  
  13332   Tue Sep 26 15:55:20 2017 gautamUpdateCDS40m files backup situationBackups
of the root filesystems of 
  
  13339   Thu Sep 28 10:33:46 2017 gautamUpdateCDS40m files backup situationAfter consulting with Jamie, we reached
the conclusion that the reason why the root
of FB1 is so huge is because of the way the
  
  13340   Thu Sep 28 11:13:32 2017 jamieUpdateCDS40m files backup situation 




  
  13342   Thu Sep 28 23:47:38 2017 gautamUpdateCDS40m files backup situationThe nodus
backup too is now complete - however,
  
  13345   Fri Sep 29 11:07:16 2017 gautamUpdateCDS40m files backup situationThe FB1   
  13361   Thu Oct 5 13:58:26 2017 gautamUpdateCDS40m files backup situationThe 4TB HGST drives have arrived. I've
started the FB1 dd
  
  13364   Fri Oct 6 12:46:17 2017 gautamUpdateCDS40m files backup situationLooks to have worked this time around.

  
  13404   Sat Oct 28 00:36:26 2017 gautamUpdateCDS40m files backup situation - ddrescueNone of the 3 dd backups I made were bootable
- at boot, selecting the drive put me into
grub rescue mode, which seemed to suggest
 415E2F09-3962-432C-B901-DBCB5CE1F6B6.jpegBFF8F8B5-1836-4188-BDF1-DDC0F5B45B41.jpeg 
  2315   Mon Nov 23 17:53:08 2009 JenneUpdateComputers40m frame builder backup acting funnyAs part of the fb40m restart procedure
(Sanjit and I were restarting it to add some
new channels so they can be read by the OAF
  
  2322   Tue Nov 24 16:06:45 2009 JenneUpdateComputers40m frame builder backup acting funny

    
        
  
  2330   Wed Nov 25 11:10:05 2009 JenneUpdateComputers40m frame builder backup acting funny

    
        
  
  10507   Mon Sep 15 18:55:51 2014 ranaUpdateDAQ40m frames onto the cluster Dan Kozak is rsync transferring /frames
from NODUS over to the LDAS grid. He's doing
this without a BW limit, but even so its
  
  10632   Wed Oct 22 21:06:33 2014 ChrisUpdateDAQ40m frames onto the cluster


   
        
            
  
  5651   Tue Oct 11 17:32:05 2011 jamieHowToEnvironment40m google maps linkHere's another useful link:
http://maps.google.com/maps?q=34.13928,-118.123756
  
  340   Sun Feb 24 10:51:58 2008 tfFrogsEnvironment40m in phdcomics?[url=http://www.phdcomics.com/comics/archive.php?comicid=977][img]http://www.phdcomics.com/comics/archive/phd021308s.gif[/img][/url]   
  6058   Thu Dec 1 11:25:10 2011 steveUpdatePEM40m infrastructure holds up well in strong wind condition Santa Anna wind speed was locked
around 60 kmph last night on campus. The
strongest in 30 years.  The lab hold
 santaannawind.pngwind.png 
  5650   Tue Oct 11 15:19:17 2011 ranaHowToEnvironment40m mapThe Kinemetrics dudes are  40mLabMap.png40mLabMap.jpg 
  15300   Tue Apr 7 15:30:40 2020 JonSummaryNoiseBudget40m noise budget migrated to pygwincIn the past year, pygwinc has expanded
to support not just fundamental noise calculations (e.g.,
quantum, thermal) but also any number of
  
  15303   Tue Apr 14 23:50:06 2020 KojiUpdateGeneral40m power glitch recovery[Koji / Gautam (Remote)]

Lab
status
  
  2115   Mon Oct 19 11:00:52 2009 steveHowToSAFETY40m safety trainingKiwamu, Alex and Zach are practicing mandatory
IR-safety scan at the 40m-PSL
40m specific safety indoctrination
 safety_10_2009.JPG 
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