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  40m Log, Page 325 of 327  Not logged in ELOG logo
ID Date Author Typedown Category Subject Text Attachments
  15145   Thu Jan 23 15:32:42 2020 gautamConfigurationComputersMegatron: starts up gradeThe burt snapshotting is still not so reliable
- for whatever reason, the number of snapshot
files that actually get written looks random.
  
  15150   Thu Jan 23 23:07:04 2020 JonConfigurationPSLc1psl breakout board wiringTo facilitate wiring the c1psl chassis
and scripting loopback tests, I've
compiled a distilled spreadsheet with the
 c1psl_feedthrough_wiring.pdf 
  15158   Mon Jan 27 14:01:01 2020 JordanConfigurationGeneralRepurposed Sorenson Power Supply The 24 V Sorenson (2nd from bottom) in
the small rack west of 1x2 was repurposed
to 12V 600 mA, and was run to a terminal
  
  15159   Mon Jan 27 18:16:30 2020 gautamConfigurationComputersSluggish megatron?I've also been noticing that the IMC
Autolocker scripts are running rather sluggishly
on Megatron recently. Some evidence - on
  
  15164   Tue Jan 28 15:39:04 2020 gautamConfigurationComputersSluggish megatron?There were a bunch of medm processes stalled
on megatron (connected with screenshot taking).
To see if they were interfering with the
  
  15167   Tue Jan 28 17:36:45 2020 gautamConfigurationComputersLocal EPICS7.0 installed on megatron[Jon, gautam]

We found that the caput
  
  15168   Tue Jan 28 19:12:30 2020 JonConfigurationPSLSpare channels added to c1psl chassisAfter some discussion with Gautam, I decided
to build more spare channels into the new
c1psl machine. This is anticipation of adding
 c1psl_feedthrough_wiring_v2.pdf 
  15421   Mon Jun 22 10:43:25 2020 JonConfigurationVACVac maintenance at 11 amThe vac system is going down at 11 am today
for planned maintenance:


Re-install the repaired
  
  15424   Mon Jun 22 20:06:06 2020 JonConfigurationVACVac maintenance completeThis work is finally complete. The dry
pump replacement was finished quickly but
the controls updates required some substantial
 Pumpdown-6-22-20.png 
  15425   Tue Jun 23 17:54:56 2020 ranaConfigurationVACVac maintenance completeI propose we go for all CAPS for all channel
names. The lower case names is just a holdover
from Steve/Alan from the 90's. All other
  
  15446   Wed Jul 1 18:03:04 2020 JonConfigurationVACUPS replacements​I looked into how the new UPS devices
suggested by Chub would communicate with
the vac interlocks. There are several possible
  
  15465   Thu Jul 9 18:00:35 2020 JonConfigurationVACUPS replacementsChub has placed the order for two new UPS
units (115V for TP2/3 and a 220V version
for TP1).
  
  15510   Sat Aug 8 07:36:52 2020 Sanika KhadkikarConfigurationCalibration-RepairBS Seismometer - Multi-channel calibrationSummary : 

I have been working on analyzing
 BS_X-EY_X.pngBS_Y-EY_Y.pngBS_Z-EY_Z.pngtimeseries.png 
  15526   Fri Aug 14 10:10:56 2020 JonConfigurationVACVacuum repairs todayThe vac system is going down now for planned
repairs [ELOG
15499]. It will likely take most
  
  15527   Sat Aug 15 02:02:13 2020 JonConfigurationVACVacuum repairs todayVacuum work is completed. The TP2 and TP3
interlocks have been overhauled as proposed
in ELOG
  
  15528   Sat Aug 15 15:12:22 2020 JonConfigurationVACOverhaul of small turbo pump interlocksSummary

Yesterday I completed
the switchover of small turbo pump interlocks
as proposed in ELOG
 small_tp_signal_routing.pngsmall_tp_interlock_signal.pngsmall_tp_signal_routing.pngmedm_screen.png 
  15738   Fri Dec 18 22:59:12 2020 JonConfigurationCDSUpdated CDS upgrade planAttached is the layout for the "intermediate"
CDS upgrade option, as was discussed on Wednesday.
Under this plan:
 CDS_2020_Dec.pdfCDS_2020_Dec.graffle 
  15742   Mon Dec 21 09:28:50 2020 JamieConfigurationCDSUpdated CDS upgrade plan


Quote:


  
  15746   Wed Dec 23 23:06:45 2020 gautamConfigurationCDSUpdated CDS upgrade plan
The diagram should clearly show
the host machines and the expansion chassis
and the interconnects between them.
We
  
  15771   Tue Jan 19 14:05:25 2021 JonConfigurationCDSUpdated CDS upgrade planI've produced updated diagrams of the
CDS layout, taking the comments in 15476 into
 40m_CDS_Network_-_Planned.pdf40m_CDS_Network_-_Current.pdf 
  15772   Tue Jan 19 15:43:24 2021 gautamConfigurationCDSUpdated CDS upgrade planNot sure if 1Y1 can accommodate both c1sus2
and c1bhd as well as the various electronics
chassis that will have to be installed. There
  
  15921   Mon Mar 15 20:40:01 2021 ranaConfigurationComputersinstalled QTgrace on donatella for dataviewerI installed QTgrace using yum on donatella. Both Grace and  cutiegrace.png 
  15928   Wed Mar 17 09:05:01 2021 Paco, AnchalConfigurationComputers40m Control Room Changes
Switched positions of allegra and
donatella.
While doing so, the
hdmi cable previously used by donatella snapped.
  
  16027   Wed Apr 14 13:16:20 2021 AnchalConfigurationComputers40m Control Room Changes
I have confirmed that the old two
monitors' backlighting is not working.
One can see the impression of the display
  
  16163   Wed May 26 11:45:57 2021 Anchal, PacoConfigurationIMCMC2 analog camera[Anchal, Paco]

We went near the MC2 area and opened
the lid to inspect the GigE and analog video
  
  16302   Thu Aug 26 10:30:14 2021 JamieConfigurationCDSfront end time synchronization fixed?I've been looking at why the front
end NTP time synchronization did not seem
to be working.  I think it might not
  
  50   Thu Nov 1 19:53:02 2007 Andrey RodionovBureaucracyPhotosTobin's picture   DSC_0053.JPG 
  51   Thu Nov 1 19:53:34 2007 Andrey RodionovBureaucracyPhotosRobert's photo   DSC_0068.JPG 
  52   Thu Nov 1 19:54:22 2007 Andrey RodionovBureaucracyPhotosRana's photo   DSC_0120.JPG 
  53   Thu Nov 1 19:55:03 2007 Andrey RodionovBureaucracyPhotosAndrey's photo   DSC_0055.JPG 
  54   Thu Nov 1 19:55:59 2007 Andrey RodionovBureaucracyPhotosAndrey, Tobin, Robert - photo   DSC_0092.JPG 
  55   Thu Nov 1 19:58:07 2007 Andrey RodionovBureaucracyPhotosSteve and Tobin's picture   DSC_0023.JPG 
  57   Fri Nov 2 08:59:30 2007 steveBureaucracySAFETYthe laser is ONThe psl laser is back on !   
  75   Wed Nov 7 02:14:08 2007 AndreyBureaucracyIOOMore information about MC2 ringdownAs Tobin wrote two hours ago, we (Andrey,
Tobin, Robert) made a series of ringdown
measurements for MC2
 9x 
  113   Fri Nov 16 18:46:49 2007 steveBureaucracyPSL MOPA was turned off & onThe "Mohana" boys scouts and their parents
visited the 40m lab today.
The laser was turned off for their safety.
  
  115   Mon Nov 19 14:32:10 2007 steveBureaucracySAFETYgrad student safety trainingJohn Miller and Alberto Stochino has received
the 40m safety bible.
 They still have to read the laser operation
  
  130   Wed Nov 28 12:43:53 2007 AndreyBureaucracy Here was the PDF-file of my presentation
I was  making a report with powerpoint presentation
during that Wednesday's 40-m meeting.
  
  135   Wed Nov 28 19:02:41 2007 AndreyBureaucracyWIKI-40M UpdateNew WIKI-40M page describing Matlab Suspension Modeling
I created the WIKI-40m page with some details
about my today's talk on the 40-m lab meeting.
  
  224   Thu Jan 3 12:38:49 2008 robBureaucracyTMISore throat[quote]
I did not feel anything wrong yesterday,
but [COLOR=red]unfortunately I have [/COLOR]
  
  262   Thu Jan 24 22:52:18 2008 AndreyBureaucracyGeneralAnts around a dirty glass (David - please read!)
Dear coleagues,
  
  279   Mon Jan 28 12:42:48 2008 DmassBureaucracyTMICoffeeThere is tea in the coffee carafe @ the 40m.
It is sitting as though it were fresh coffee.
There is also nothing on the post it.
  
  339   Fri Feb 22 21:19:38 2008 AndreyBureaucracyComputer Scripts / ProgramsMDV library does not work at "LINUX 2"
While working on Thursday evening with Matlab
scripts "dttfft2" and "get_data", I noticed
  
  343   Thu Feb 28 12:31:33 2008 robBureaucracyComputer Scripts / ProgramsMDV library does not work at "LINUX 2"[quote]
While working on Thursday evening with Matlab
scripts "dttfft2" and "get_data", I noticed
  
  382   Fri Mar 14 16:56:03 2008 DmassBureaucracyComputersNew 40m control machine.I priced out a new control machine from Dell
and had Steve buy it.
  
  488   Tue May 20 09:28:42 2008 steveBureaucracySAFETYsafety traning for 40mTara Chalernsongsak, new gradstudent for K.
Libbrecht was introduced to the basics of
the 40m operations.
  
  491   Thu May 22 11:21:45 2008 steveBureaucracySAFETYearly surf sudentCaltech under grad Eric Mintun received the
40m safety training.
Now he has to read and sign SOP of laser
  
  505   Thu May 29 16:49:49 2008 steveBureaucracyPhotosYoichi has arrivedYoichi had his first 40m meeting. We welcomed
him and Tobin, who is visiting, by sugar
napoleons that 
 yoichi.pngbobsn.png 
  511   Mon Jun 2 12:20:35 2008 josephbBureaucracyCamerasBeam scan has movedThe beamscan has been moved from the Rana
lab back over to the 40m, to be used to calibrate
the Prosilica cameras.
  
  523   Fri Jun 6 15:56:00 2008 steveBureaucracySAFETYYoichi received safety trainingYoichi Aso received 40m specific safety training.   
  552   Mon Jun 23 15:22:04 2008 ranaBureaucracySAFETYLaser Safety Walkthrough today   Walkthrough08.jpg 
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