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  40m Log, Page 2 of 327  Not logged in ELOG logo
ID Date Author Type Category Subjectup Text Attachments
  8472   Mon Apr 22 17:43:09 2013 SteveUpdate40m Upgrading ETMY optical table & enclosure is ready for optics

    

       
            
 more2.jpg 
  12226   Wed Jun 29 08:20:04 2016 SteveUpdateSUS First Contact shelf life
We'll follow LIGO policy:
Our
policy is to use first contact within 1 year
of purchase for use in the interferometers.
  
  525   Fri Jun 6 16:47:04 2008 josephbConfigurationCameras GC650 scatter images of 1064nm lightTook images similar to the scattered light
images from earlier, except with the CCD
GC650 camera.  The first three attached plots
 GC650_scatter_200.pdfGC650_scatter_100a.pdfGC650_scatter_100b.pdf 
  8834   Fri Jul 12 09:00:10 2013 SteveUpdateGeneral Halogen illumination cables disconnectedAlex and Steve,
Old halogen chamber illuminator cabling
disconnected and potenciometer board removed
 1Y1oldilluminatersDisconnected.jpg 
  8835   Fri Jul 12 12:30:47 2013 manasaUpdateGeneral Halogen illumination cables disconnected

    

       
            
  
  2585   Wed Feb 10 16:27:47 2010 steveConfigurationGeneral IFO beam heightsIN
VACUUM beam heights are ALL 5.5" 
This is measured from the top of the
  
  10428   Mon Aug 25 09:56:21 2014 SteveUpdateIMC IMC WFSs upgrade 
 The Napa earth quake magnitude
6 did not have any effect on the suspensions.
 eq6Mnapa.png 
  7466   Wed Oct 3 07:41:23 2012 SteveUpdateSUS MC2 sus damping restoredThis is the third morning in a row that
the MC2 was tripped.  Would you look
at it Koji?
  
  7473   Wed Oct 3 23:24:05 2012 KojiUpdateSUS MC2 sus damping restored

    

       
            
  
  7496   Sun Oct 7 15:05:42 2012 DenUpdateSUS MC2 sus damping restored

    

       
            
 mc2.png 
  7460   Tue Oct 2 07:45:49 2012 SteveUpdateSUS MC2 & PRM sus damping restored    
  5139   Mon Aug 8 13:24:00 2011 steveMetaphysicsTreasure Monday morning

    

       
            
 P1080147.JPG 
  7568   Wed Oct 17 11:15:05 2012 DenUpdateSUS PITCH damping needed

    

       
            
 pitch_damping.png 
  7571   Thu Oct 18 02:42:38 2012 DenUpdateSUS PITCH damping needed

    

       
            
 7x 
  7583   Fri Oct 19 18:30:07 2012 DenUpdateSUS PITCH damping needed

    

       
            
 damp.pngpitch.png 
  7585   Sat Oct 20 01:23:56 2012 DenUpdateSUS PITCH damping needed

    

       
            
 P1010059.jpgP1010058.jpgP1010060.jpg 
  7586   Sat Oct 20 20:37:55 2012 DenUpdateSUS PITCH damping needed

    

       
            
 DSC_4778.JPGpitch.JPGyaw.JPGDSC_4776.JPG 
  7588   Mon Oct 22 11:26:12 2012 ranaUpdateSUS PITCH damping needed 
Too bad - I thought it would at least
give a little damping. Since we want the
  
  7593   Tue Oct 23 01:46:53 2012 DenUpdateSUS PITCH damping needed

    

       
            
 Mirror_Holder_ECD_NEW_DRAWING.PDFTT_DAMPING_DRAWING.PDF 
  7598   Tue Oct 23 17:12:30 2012 DenUpdateSUS PITCH damping needed Koji and Steve pointed out that previous
design  of a damping bracket was
a bit complicated to manufacture. So I made
 simple_drawing.PDF 
  7602   Tue Oct 23 18:18:29 2012 JenneUpdateSUS PITCH damping needed

    

       
            
  
  7604   Wed Oct 24 01:02:10 2012 KojiUpdateSUS PITCH damping neededWow... This is even more complicated than
the original "Y" design...
  
  7640   Mon Oct 29 18:14:55 2012 DenUpdateSUS PITCH damping needed 
 We've received all parts that
we need for eddy current damping. I've made
 DSC_4787.JPGDSC_4791.JPG 
  12844   Wed Feb 22 08:54:17 2017 steveUpdatePEM PSL enclousure particle countETMX sus damping recovered.  PSL enclousure
is dusty at 20V rotation speed. Rainy days
as outside condition.
 dusty__PSL.png 
  13549   Tue Jan 16 11:05:51 2018 gautamUpdatePSL PSL shelf - AOM power connection interruptedWhile moving the RefCav to facilitate the
PSL shelf install, I
bumped the power cable to the AOM driver.
  
  13551   Tue Jan 16 21:46:02 2018 gautamUpdatePSL PSL shelf - AOM power connection interruptedJohannes informed me that he touched up
the PMC REFL camera alignment. I am holding
off on re-soldering the AOM driver power
  
  13538   Fri Jan 12 10:26:24 2018 SteveUpdatePSL PSL shelf work scheduleMeasurements for good fit were made. The
new shelf will be installed on next Tuesday
at 2pm
  
  7566   Wed Oct 17 08:30:49 2012 SteveUpdateSUS PTICH damping needed

    

       
            
  
  352   Mon Mar 3 13:58:10 2008 steveUpdateComputers RFM Network are downThe CODAQ_RFNETWORK are down, except C1SUSVME
& AWG
  
  353   Mon Mar 3 19:34:40 2008 ranaUpdateComputers RFM Network are down[quote]The CODAQ_RFNETWORK are down, except
C1SUSVME & AWG[/quote]
All of the FE machines were found to be down
  
  8686   Thu Jun 6 15:46:10 2013 Max HortonSummaryGeneral Smart UPS 2200 Batteries ReplacedReplaced the batteries successfully in
the control room.  We just had to switch
the clips from the old batteries to the new
  
  12043   Wed Mar 23 11:55:47 2016 SteveUpdateGeneral Smart UPS 2200 Battery ReplacedBatteries replaced in control room UPS
after 3 years from replaceUPSbattery.com

 
  
  12952   Thu Apr 27 16:41:13 2017 Eric GustafsonUpdateLSC Status of the 40 m PD Frequency Response Fiber SystemThere two reports in the DCC describing
the state of the system as of October 2014
including: (1)  Alex Cole’s “T1300618
  
  8432   Tue Apr 9 21:27:48 2013 JenneUpdate40m Upgrading TRY temporarily in place

    

       
            
  
  12788   Thu Feb 2 12:17:48 2017 SteveUpdateGeneral USB microscopeThis
AmScope microscope would have 3.5x-180x
magnification, calibratable measurement function,
  
  12813   Thu Feb 9 08:03:08 2017 SteveUpdateGeneral USB microscope orderedhttp://www.amscope.com/3-5x-180x-boom-stand-trinocular-zoom-stereo-microscope-with-144-led-ring-light-and-10mp-camera.html
will be ordered today.
  
  12848   Thu Feb 23 14:50:26 2017 SteveUpdateGeneral USB microscope returnedThe microscope shipped back to the vendor
for credit yesterday.

  
  12570   Wed Oct 19 14:43:15 2016 SteveUpdateGeneral Viewports & coating of 2001Tilted viewports installed in horizontal
position. Atm2
 vacViewp2001.PDFtiltedViewport.PDF 
  14106   Thu Jul 26 15:11:18 2018 SteveUpdateGeneral Viewports & coating of 2001New optical quality BK-7 windows in 2001
[4 substrates ] AR coated R<0.75 % for
630-1064nm "
 BK7window_Coatings.PDF 
  12572   Wed Oct 19 17:02:34 2016 ranaUpdateGeneral Viewports & coating of 2016These old specs are not so bad. But we
now want to get replacements for the TRX
and TRY and PSL viewports that are R <0.1%
  
  10023   Wed Jun 11 08:57:49 2014 SteveUpdatePEM air cond maintenance tomorrow morning

    

       
            
  
  5307   Fri Aug 26 10:45:17 2011 steveUpdateGeneral crane at ETMY is fixed

    

       
            
 P1080190.JPGP1080188.JPG 
  12868   Mon Mar 6 09:12:59 2017 SteveUpdatesafety crane inspection 2017All 3 cranes inspected by professional
Fred Goodbar of Konecranes and load tested
with 450 lbs at max reach on Friday, March
 inspection_2017.jpg 
  13630   Mon Feb 12 14:56:00 2018 SteveUpdatesafety crane inspection 2018Our 3 cranes passed  professional 
inspection. Fred Goodbar of Konacrane with
450 lbs load at full extension.
 ETMY.jpgVetex.jpgETMX.jpg 
  12020   Fri Mar 4 11:07:10 2016 SteveUpdatesafety crane inspection completes 2016 safey auditAll 3 cranes inspected by professional
and load tested with 450 lbs at max reach.

 
 craneInsp2016.jpg 
  12656   Fri Dec 2 10:57:08 2016 steveUpdatePEM door seal replacedThe south end door leaky weather seals
replaced.

The aim is here to get some overpressure
 1_year_PEM.png 
  3404   Thu Aug 12 10:56:31 2010 steveUpdateEnvironment dusty floor work in progresI powered down 1Y1 and 1Y2 instrument racks
of MC and RF-systems this morning.
Both racks, SP table, clean tools-parts
  
  11975   Thu Feb 4 10:14:52 2016 SteveUpdateSUS earthquake 3.5M  

 
 EQ3.5m_Simmier.Ca.png 
  11932   Thu Jan 14 13:44:05 2016 SteveUpdateSUS earthquake 3.6M No obvious sign of damage.

 
 3.6M_JohannesburgCA.pngETMX_3.6_M.png 
  9098   Tue Sep 3 14:23:21 2013 SteveUpdatePEM earthquakes ~Vancuver, Canada earthquakes: magnitude
6,  5  and more shaking
 
 EQm6&5.png 
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