40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 83 of 344  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  13169   Mon Aug 7 16:00:41 2017 ranaUpdateGeneralBilinear noise couplingThese are not the angular test
parameters that we're looking for:

 recall that what we want
  
  13168   Sat Aug 5 11:04:07 2017 gautamUpdateSUSMC1 glitches returnSee Attachment #1, which is full (2048Hz)
data for a 3 minute stretch around when I
saw the MC1 glitch. At the time of the glitch,
 MC1_glitch_Aug42017.pngMC1_glitch_zoomed.png 
  13167   Fri Aug 4 18:25:15 2017 gautamUpdateGeneralBilinear noise coupling[Nikhil, gautam]

 bilinearTest.pdf 
  13166   Fri Aug 4 09:07:28 2017 ranaUpdateCDSCDS system essentially NOT fully recoveredTried getting   
  13165   Thu Aug 3 20:15:11 2017 JamieUpdateCDSdataviewer can not raise test pointsFor some reason dataviewer is not able
to raise test points with the new daqd setup,
even though dtt can.  If you raise a
  
  13164   Thu Aug 3 19:46:27 2017 JamieUpdateCDSnew daqd restart procedureThis is the daqd restart procedure:

$ ssh
  
  13163   Thu Aug 3 11:11:29 2017 gautamUpdateCDSNDS2 server restarted, /frames mounted on nodusI added nodus' eth0 IP (192.168.113.200)
to the list of allowed nfs clients in /etc/exportfs
on fb1, and then ran sudo mount -a on nodus.
  
  13162   Thu Aug 3 10:51:32 2017 ranaUpdateCDSNDS2 server restarted, /frames mounted on megatronsame issue on NODUS; I edited the /etc/fstab
and tried mount -a, but it gives this error:

controls@nodus|~ 1> sudo
  
  13161   Thu Aug 3 00:59:33 2017 gautamUpdateCDSNDS2 server restarted, /frames mounted on megatron[Koji, Nikhil, Gautam]

We couldn't get data using
python nds2. There seems to have been many
  
  13160   Wed Aug 2 15:04:15 2017 gautamConfigurationComputerscontrol room workstation power distributionThe 4 control room workstation CPUs (Rossa,
Pianosa, Donatella and Allegra) are now connected
to the UPS.
  
  13159   Wed Aug 2 14:47:20 2017 KojiSummaryComputersChiara backup situation summaryI further made the burt snapshot directories
compressed along with ELOG
11640. This freed up additional ~130GB.
  
  13158   Wed Aug 2 09:40:55 2017 SteveUpdateElectronicsspare ILIGO electronicsSpare ILIGO electronics temporarly stored
in the east arm. We need cabinet space.
 iLIGOspares.jpgspareIligo.jpg 
  13157   Tue Aug 1 19:23:06 2017 ranaUpdateALSX - arm alignmentRana, Naomi

We dither locked the X arm and
then aligned the green beam to it using the
  
  13156   Tue Aug 1 16:05:01 2017 gautamUpdateOptical LeversOptical lever tuning - cost function constructionSummary:

I've been trying
 loopPerformance.pdfOplevLoop.pngOL_errSigs.pdfDAC_saturation.pdf 
  13155   Mon Jul 31 23:39:02 2017 ranaUpdateCOCCavity Scan Simulation CodeHiro Yamamoto has updated SIS (Static Interferometer
Simulation) to allow us to do the MCMC based
inference of the 40m arm cavity mirror maps. 
 manyCavityScans-SIS.pdfmanyCavityScans-SIS.pdfMonteCarlo_CavityScans.mat 
  13154   Mon Jul 31 20:35:42 2017 KojiSummaryComputersChiara backup situation summarySummary
- CDS Shared files system: backed
up
  
  13153   Mon Jul 31 18:44:40 2017 JamieUpdateCDSCDS system essentially fully recoveredThe CDS system is mostly fully recovered
at this point.  The mx_streams are all
flowing from all front ends, and from all
 02.png 
  13152   Mon Jul 31 15:13:24 2017 gautamUpdateCDSFB ---> FB1[jamie, gautam]

In order to test the new daqd config
that Jamie has been working on, we felt it
  
  13151   Sat Jul 29 16:24:55 2017 jamieUpdateGeneralPSL StripTool flatlined


  
  13150   Sat Jul 29 14:05:19 2017 gautamUpdateGeneralPSL StripTool flatlinedThe PMC was unlocked when I came in ~10mins
ago. The wall StripTool traces suggest it
has been this way for > 8hours. I was
  
  13149   Fri Jul 28 20:22:41 2017 JamieUpdateCDSpossible stable daqd configuration with separate DC and FWThis week Jonathan Hanks and I have been
trying to diagnose why the daqd has been
unstable in the configuration used by the
  
  13148   Fri Jul 28 16:47:16 2017 gautamUpdateGeneralPSL StripTool flatlinedAbout 3.5 hours ago, all the PSL wall StripTool
traces "flatlined", as happens
when we had the EPICS freezes in the past
  
  13147   Fri Jul 28 15:36:32 2017 gautamUpdateOptical LeversOptical lever tuning thoughtsAttachment #1 - Measured
error signal spectrum
 errSig.pdfQPD_simulink.pngfeedbackTopology.pdf 
  13146   Thu Jul 27 22:42:24 2017 gautamUpdateSUSSeismic noise, DAC noise, and Coil Driver electronics noiseSummary:

 noiseComparison.pdfdeWhiteConfigs.zipnoiseComparison_resistances.pdf 
  13145   Wed Jul 26 19:13:07 2017 JamieUpdateCDSdaqd showing same instability as beforeI recompiled daqd on the updated fb1, similar
to how I had before, and we're seeing
the same instability: process crashes when
  
  13144   Tue Jul 25 14:27:19 2017 SteveUpdatesafetysafety trainingKira Dubrovina and Naomi Wharton received
40m specific basic safety training.
 safety.jpg 
  13143   Tue Jul 25 14:04:06 2017 SteveUpdateVACturbo controller installed and we are running at vac normalGautam and Steve,

Spare Varian turbo-V 70 controller,
Model 969-9505, sn 21612 was swapped in.
 TP2@75Krpm.png 
  13142   Tue Jul 25 08:48:57 2017 SteveUpdateVACRGA scan at d278The RGA did not shut down at the turbo
pump controller failing.

 RGA278d.png 
  13141   Tue Jul 25 02:03:59 2017 gautamUpdateOptical LeversOptical lever tuning thoughtsSummary:

Currently, I am unable to engage
the coil-dewhitening filters without destroying
  
  13140   Tue Jul 25 00:03:01 2017 ranaOmnistructureTreasurecoffee pot lidI
have recommissioned the Zojirushi coffee
pot lid. You may, once again, align the dots
  
  13139   Mon Jul 24 19:57:54 2017 gautamUpdateCDSIMC locked, Autolocker re-enabledNow that all the front end models are running,
I re-aligned the IMC, locked it manually,
and then tweaked the alignment some more.
  
  13138   Mon Jul 24 19:28:55 2017 JamieUpdateCDSfront end MX stream network working, glitches in c1ioo fixedMX/OpenMX
network running

Today I
got the mx/open-mx networking working for
 48.png 
  13137   Mon Jul 24 12:00:21 2017 gautamUpdatePSLPSL NPRO mysteriously shut offSummary:

At around 10:30AM
 IMG_7454.JPG 
  13136   Mon Jul 24 10:59:08 2017 JamieUpdateCDSc1iscex models died


  
  13135   Mon Jul 24 10:45:23 2017 gautamUpdateCDSc1iscex models diedThis morning, all the c1iscex
models were dead. Attachment #1
 c1iscexFailure.png 
  13134   Mon Jul 24 09:55:29 2017 SteveOmnistructureVACcontroller failerIfo pressure was 5.5 mTorr this Monday
morning. The PSL shutter was still open.
TP2 controller failed. Interlock closed V1,
 TP2controllerFails.png 
  13133   Sun Jul 23 22:16:55 2017 Jamie, gautamUpdateCDSfront-end now running with new OS, RCGAll front
ends and model are (mostly) running now

 2017-07-23-210810_1394x488_scrot.png2017-07-23-211812_387x488_scrot.png 
  13132   Sun Jul 23 15:00:28 2017 JamieOmnistructureVACstrange sound around X arm vacuum pumpsWhile walking down to the X end to reset
c1iscex I heard what I would call a "rythmic
squnching" sound coming from under the
  
  13131   Fri Jul 21 19:44:58 2017 NaomiSummaryComputer Scripts / ProgramsUsing PyKat to run FinesseI have been working on using PyKat to run
Finesse. There appear to be several ways
to run an equivalent simulation using Finesse:
  
  13130   Fri Jul 21 18:03:17 2017 JamieUpdateCDSUpdate on front-end/DAQ rebuild Update:


front ends booting with
the new Debian jessie diskless root image
  
  13129   Fri Jul 21 08:05:07 2017 SteveSummarySUSred, blue, green laser diodes orderedAlso ordered 1 ea.

Blue
20mW
  
  13128   Wed Jul 19 18:24:15 2017 ranaSummarySUSoplev laser summary updatedThe $1000 HeNe should not be used for illuminating
fibers.

You should purchase these (total
  
  13127   Wed Jul 19 14:26:50 2017 JamieUpdateCDSUpdate on front-end/DAQ rebuild  




  
  13126   Wed Jul 19 12:47:43 2017 SteveSummarySUSoplev laser summary updated1103P, sn P893518 of  2013 vintage
is dead at the sus  fiber demo

  
  13125   Wed Jul 19 08:37:21 2017 JamieUpdateCDSUpdate on front-end/DAQ rebuild After the catastrophic fb disk failure
last week we lost essentially the entire
front end system (not any of the userapp
  
  13124   Wed Jul 19 00:59:47 2017 gautamUpdateGeneralFINESSE model of DRMI (no arms)Summary:

I've
been working on improving the 40m FINESSE
model I set up sometime last year (where
 DRMI_sensingMat.pdfDRMI_errSigs.pdf40m_DRMI_FINESSE.zipDRMI_sensingMat_19Jul.pdf 
  13123   Mon Jul 17 16:22:01 2017 SteveUpdateSUSruby wire standoff picturesBluebean Optical Tech Limited of Shanghai
delivered 50 pieces red ruby
prisms
 contacting_ridge.bmpcontacting_ridge.png 
  13122   Sun Jul 16 12:09:47 2017 jigyasaUpdateCamerasBRDF CalibrationsWith this idea in mind, we can now actually
take images of the illuminated paper at
different scattering angles, assume BRDF
  
  13121   Sun Jul 16 11:58:36 2017 jigyasaUpdateCamerasBRDF Calibrations 

From
what I understood froom my reading, [Large-angle
  
  13120   Sat Jul 15 16:19:00 2017 gautamUpdateCamerasMakeshift PyPylonSome days ago, I stumbled upon
this github page, by a grad student at
KIT who developed this code as he was
 pyPylon_test.png 
ELOG V3.1.3-