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ID Date Author Typedown Category Subject Text Attachments
  14238   Mon Oct 8 18:56:52 2018 gautamConfigurationASCc1asx filter coefficient file missingWhile pointing Yuki to the c1asx servo
system, I noticed that the filter
file for c1asx is missing in the usual chans
  
  14239   Tue Oct 9 16:05:29 2018 gautamConfigurationASCc1tst deleted, c1asy deployed.Setting up c1asy:


Backed up old c1tst.mdl
as c1tst_old_bak.mdl in /opt/rtcds/userapps/release/cds/c1/models
Copied
 CDSoverview_ASY.png 
  14240   Tue Oct 9 23:03:43 2018 yukiConfigurationLSCYarm Green locking was recovered[ Yuki, Gautam, Steve ]

To align the green beam in Y-end
these hardware were installed:
 Pic_1Y4.jpgPic_PZTcable.jpg 
  14241   Wed Oct 10 12:38:27 2018 yukiConfigurationLSCAll hardware was installedI connected DAC - AIboard - PZTdriver -
PZT mirrors and made sure the PZT mirrors
were moving when changing the signal
  
  14257   Mon Oct 15 20:11:56 2018 yukiConfigurationASCY end table upgrade planFinal Procedure Report for Green Locking
in YARM:

Purpose
  
  14260   Wed Oct 17 20:46:24 2018 yukiConfigurationASCY end table upgrade planTo do for Green Locking in YARM:

The auto-alignment servo should
be completed. This servo requires many parameters
  
  14301   Fri Nov 16 15:09:31 2018 SteveConfigurationVACnot venting cryo and ion pumpsNotes on the ion pumps and cryo pump:



Our
4 ion pumps were closed off for a lomg time.
I estmated their pressure to be around ~1
  
  14322   Tue Nov 27 17:06:51 2018 SteveConfigurationVACAgilent 84FS turbo installed as TP2Chub & Steve,   
  14382   Thu Jan 3 21:17:49 2019 ranaConfigurationComputersWorkstation Upgrade: Donatella -> Scientific Linux 7.2donatella was one of our last workstations
running ubuntu12. we installed SL7 on there
today
 IMG_20190103_205158.jpg 
  14387   Mon Jan 7 11:54:12 2019 JonConfigurationComputer Scripts / ProgramsVac system shutdownI'm making a controlled shutdown of
the vac controls to add new ADC channels.
Will advise when it's back up.
  
  14388   Mon Jan 7 19:21:45 2019 JonConfigurationComputer Scripts / ProgramsVac system shutdownADC work finished for the day. The vac
controls are back up, with all valves
CLOSED and all pumps OFF.
  
  14476   Fri Mar 8 08:40:26 2019 AnjaliConfiguration Frequency stabilization of 1 micron sourceThe schematic of the homodyne configuration
is shown below.

Following are the list of components
 Homodyne_setup.png 
  14664   Tue Jun 11 19:25:58 2019 aaronConfigurationBHDReviving the single OMC BHD design?I drew out some idea of how we might
use a single OMC to clean both paths of the
BHD after mixing, without being susceptible
 singleOMC.pdf 
  14672   Thu Jun 13 22:21:44 2019 KojiConfigurationCDSPaola wireless connected to martianSURFs had trouble connecting paola to martian
via wireless.
Of course, it requires a fixed IP
  
  14685   Fri Jun 21 19:22:40 2019 KojiConfigurationBHDReviving the single OMC BHD design?I think a Faraday rotator rotates the polarizations
in a same way for both forward and backward
beam, and it's not like in this figure.
  
  14692   Mon Jun 24 13:48:36 2019 KruthiConfigurationCDSGiada wireless connection[Gautam, Kruthi]

This afternoon, Gautam helped me
setup Giada to access the GigE installed
  
  14767   Wed Jul 17 17:56:18 2019 KojiConfigurationComputersGave resolv.conf to giadaKruthi noticed that she could not login
to rossa from giada.

I checked /etc/resolv.conf and
  
  14812   Thu Jul 25 14:28:03 2019 gautamConfigurationComputersfirewalld disabled for EPICS CAI think rana did some more changes to this
workstation to make it useful for commissioning
activities - but the MEDM screens were still
 donatellaCommissioning.png 
  15085   Sun Dec 8 20:48:29 2019 ranaConfigurationComputersMegatron: starts up gradeI noticed recently that Megatron was running
Ubuntu 12, so I've started
its OS upgrade.
  
  15095   Wed Dec 11 22:01:24 2019 ranaConfigurationComputersMegatron: starts up gradeMegatron is now running Ubuntu 18.04
LTS.

We should probably be able to load
  
  15117   Mon Jan 13 15:47:37 2020 shrutiConfigurationComputer Scripts / Programsc1psl burt restore[Yehonathan, Jon, Shruti]

Since the PMC would not lock, we
initially burt-restored the c1psl machine
  
  15125   Wed Jan 15 14:10:28 2020 JonConfigurationPSLNew EPICS database for C1PSL + C1IOOSummary

I have completed the
new EPICS channel database for the c1psl
and c1ioo channels
  
  15142   Wed Jan 22 19:17:20 2020 gautamConfigurationComputersMegatron: starts up gradeupgrade was done

cronjob testing wasn't one
by one 😢 
  
  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 
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