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ID Date Author Type Categoryup Subject Text Attachments
  9454   Tue Dec 10 17:27:47 2013 JenneUpdateTreasureBaby oplev LQR designed loopI *finally* figured out how to bend Matlab
to my will, and close a very simple oplev
loop using LQR technology. 
 NoControlVsClosedLoop_BabyOplev.pngOpenLoopGain_BabyOplev.pngStepResp_BabyOplev.pngImpResp_BabyOplev.png 
  9476   Sun Dec 15 20:37:41 2013 ranaSummaryTreasureThere is a Wagonga in the container that Steve does not believe inFrom Linda and Bram:  WagSu.pdfWagonga.jpgMandehlingMedStrong.jpg 
  10482   Wed Sep 10 02:35:54 2014 JenneHowToTreasureSecret scripts, revealed! I hereby confess to having a secret
script.  But it is secret no longer!
It's a "goLock" script,
  
  10899   Wed Jan 14 02:11:07 2015 ranaSummaryTreasure2-loop Algebra LoopologyI show here
the matrix formalism to calculate analytically
the loop TF relationships for the IMC w/
 FSSloop.pdfFSSloop.png 
  10945   Tue Jan 27 17:58:21 2015 JenneConfigurationTreasureWelcome, Donatella!Welcome to your new abode, Donatella!  IMG_1806.JPG 
  10961   Fri Jan 30 11:37:20 2015 manasaFrogsTreasureSP table madness endsSP table has been a mess because Q and
I had let our SURF leave without cleaning
up.
 before_after.jpgsort.jpg 
  11040   Mon Feb 16 21:52:51 2015 ranaHowToTreasurebig Dataviewer windowsFollowing this
entry, I have made the same change in
the controls account on rossa:
 bigDV.png 
  11096   Wed Mar 4 00:50:36 2015 ranaBureaucracyTreasureTransitioned DARM to AS55Q, some other workJust
in case there was some confusion, the champagne
on my desk is not to be opened
  
  11124   Mon Mar 9 16:50:35 2015 Champagne DuckFrogsTreasureCelebrating Lock   2015-03-09_16.35.47.jpg 
  11369   Mon Jun 22 14:21:42 2015 SteveMetaphysicsTreasureJenne and Den graduatedLast supper before departing at  "Grazie"
El Portal. All the best on your journey!
 ls.jpg 
  11986   Thu Feb 11 14:28:50 2016 SteveUpdateTreasure091415 declared  
Beautifully Done

  
 091415declared.jpgYou_were_right!.jpgP1080312.JPG 
  12007   Wed Feb 24 09:06:25 2016 SteveUpdateTreasurethe way it happened Celebration




 IMG_0120.JPG 
  12562   Fri Oct 14 15:47:00 2016 ranaUpdateTreasurefilters + clipI say just fix the clipping. Don't
worry about the PRM OSEM filters. We can
do that next time when we put in the ITM
  
  12694   Fri Jan 6 17:00:26 2017 ranaFrogsTreasureVideo of Lab TourIn this video: https://youtu.be/iphcyNWFD10,
the comments focus on the orange crocs, my
wrinkled shirt, and the first aid kit.
  
  12917   Wed Mar 29 16:38:00 2017 SteveOmnistructureTreasuresus fiber illluminated   fiber.jpg 
  12919   Thu Mar 30 10:41:56 2017 ranaOmnistructureTreasuresus fiber illluminatedVery, very cool!     
  12922   Fri Mar 31 16:10:33 2017 SteveUpdateTreasureLes Guthman Les Guthman interviews  gradstudent
Graig.

Main laser emergency shut off was
  
  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
  
  14124   Thu Aug 2 16:30:08 2018 SteveUpdateTreasuretime capsule locationI 've just found this time capsule
note from Nov. 26, 2000 by Kip Thorne: 
LIGO will discover gravitational waves by
 time_capsule.JPG 
  14265   Fri Nov 2 09:47:57 2018 SteveMetaphysicsTreasureZojirushi is dead     It took at least
ten years to rust away. 
 DSC01773.JPGzoji.JPG 
  14271   Mon Nov 5 15:55:39 2018 SteveMetaphysicsTreasureZojirushi is deadWe
have no coffee machine.

We
 zoji.JPG 
  14272   Tue Nov 6 09:45:32 2018 aaronMetaphysicsTreasureZojirushi is deadNew
all organic machine.
  
  16441   Sun Oct 31 14:21:31 2021 ranaHowToTreasureIFOCadIFOcad model/video of the AEI 10m interferometer:

https://10m.aei.mpg.de/design-and-sensitivity/
  
  16727   Tue Mar 15 13:49:44 2022 Ian MacMillanBureaucracyTreasureNew Screwdriver BitsI have received the new screwdriver bits
that will work with the two electric screwdrivers
we have. I have distributed them in the 40m.
  
  17139   Wed Sep 14 15:40:51 2022 JCUpdateTreasurePlastic ContainersThere are brand new empty plastic containers
located inside the shed that is outside
in the cage. These can be used for organizing
 B0DD2BEC-E57E-4AA2-8672-2ABB41F44F84.jpeg 
  14153   Fri Aug 10 11:29:39 2018 aaronConfigurationUpgradeParts list for BHDI've started putting together a list
of things we'll need to buy to do BHD
readout. I'm still messing around with
  
  14154   Fri Aug 10 16:43:50 2018 gautamConfigurationUpgradeParts list for BHDCan we use the leakage
beam from MMT2 on the OMC table as the
LO beam? I can't find the spec for this
  
  14155   Sun Aug 12 10:59:34 2018 aaronConfigurationUpgradeParts list for BHDThat seems fine, I wasn't thinking
of that beam. in that case could we just
have a PBS directly behind MMT2 and send
  
  14158   Mon Aug 13 17:20:07 2018 aaronConfigurationUpgradeParts list for BHDI've attached the diagram of what I
mean.

There are a couple caveats and
 BHD_layout.pdf 
  14311   Tue Nov 20 17:38:13 2018 ranaUpdateUpgradeNew Coffee MachineRana, Aaron, Gautam

The
  
  14327   Sun Dec 2 16:08:44 2018 JonOmnistructureUpgradeFeedthroughs for Vacuum Acromag ChassisBelow is an inventory of the signal
feedthroughs that need to be installed on
the vacuum Acromag crate this week.
  
  14330   Tue Dec 4 10:38:12 2018 JonOmnistructureUpgradeUpdated Feedthrough List for Vacuum Acromag ChassisBased on new input from Chub, attached
is the revised list of signal cable
feedthroughs needed on the vacuum system
 acromag_chassis_feedthroughs.pdf 
  14348   Wed Dec 12 18:27:07 2018 JonOmnistructureUpgradeAnalog signals, A/D Acromag added to vacuum systemThere turned out to be a few analog signals
for the vacuum system after all. The TP2/3
foreline pressure gauges were never part
  
  14375   Thu Dec 20 21:29:41 2018 JonOmnistructureUpgradeVacuum Controls Switchover Completed[Jon, Chub, Koji, Gautam]

Summary

Today we carried
out the first pumpdown with the new vacuum
 40m_vacuum_acromag_channels.pdf 
  14384   Fri Jan 4 11:06:16 2019 JonOmnistructureUpgradeVac System PunchlistThe base Acromag vacuum system is running
and performing nicely. Here is a list of
remaining questions and to-do items we still
  
  14390   Tue Jan 8 19:13:39 2019 JonUpdateUpgradeReady for pumpdown tomorrowEverything is set for a second pumpdown
tomorrow. We'll plan to start pumping
after the 1pm meeting. Since the main volume
  
  14493   Thu Mar 21 18:36:59 2019 JonOmnistructureUpgradeVacuum Controls Switchover CompletedUpdated vac channel list is attached. There
are several new ADC channels.

 40m_Vacuum_Acromag_Channels_20190321.pdf 
  14495   Mon Mar 25 10:21:05 2019 JonUpdateUpgradec1susaux upgrade planNow that the Acromag upgrade of c1vac is
complete, the next system to be upgraded
will be c1susaux. We chose c1susaux because
 IMG_3136.jpgIMG_3138.jpgIMG_3137.jpg 
  14496   Tue Mar 26 04:25:13 2019 JohannesUpdateUpgradec1susaux upgrade plan


Quote:


  
  14497   Tue Mar 26 18:35:06 2019 JonUpdateUpgradeModbus IOC is running on c1susaux2Thanks to new
info from Johannes, I was able to finish
setting up the modbus IOC on c1susaux2.
  
  14500   Fri Mar 29 11:43:15 2019 JonUpdateUpgradeFound c1susaux database bugI found the current bias output channels,
C1:SUS-<OPTIC>_<DOF>BiasAdj,
were all pointed at C1:SUS-<OPTIC>_
  
  14590   Thu May 2 15:35:54 2019 JonOmnistructureUpgradec1susaux upgrade documentationFor future reference:


The updated list
of c1susaux channel wiring (includes the
  
  16812   Mon Apr 25 18:00:03 2022 Ian MacMillanUpdateUpgradeCable supports updateI have designed new cable supports for
the new ribbon cables running up the side
of the tables in the vacuum chambers. 
 Chamber_Leg_Ribbon_Cable_Attachments.pdf 
  16942   Thu Jun 23 15:05:01 2022 Water MonitorUpdateUpgradeWater Bottle Refill22:05:02 UTC Jordan refilled his water
bottle at the water dispenser in the control
room.
  
  23   Mon Oct 29 09:16:31 2007 steveRoutineVACthe rga is backWe had no filament current since last power
glitch of Oct. 8, 2007
First I thought that the filament was lost,
 rgaisback.jpg 
  24   Mon Oct 29 09:46:50 2007 steveRoutineVACvac & pem trendPumpdown 64 pumped by maglev for 125 days
pd64-m-d125
 pd64md125.jpg 
  38   Wed Oct 31 10:31:23 2007 Andrey RodionovRoutineVACVenting is in progress
We (Steve, David, Andrey) started venting
the vacuum system at 9.50AM Wednesday morning.
  
  44   Thu Nov 1 09:17:27 2007 steveRoutineVACvent 64Yesterday before vent I could not lock  MC,
therfore I could not measure the 
transmitted power at MC2 
 vent64.jpg 
  64   Mon Nov 5 22:24:38 2007 Andrey, SteveOmnistructureVACPumping down goes smoothly
We (Steve and Andrey) started pumping down
at 3.25PM today. At 9 PM we turned off the
  
  65   Tue Nov 6 09:14:37 2007 steveSummaryVACpump down 658 hr plot,
precondition: 5 days at atm,
vent objective: drag wiping mc1, mc2 & mc3
 pd65.jpg 
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