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ID Date Author Typedown Category Subject Text Attachments
  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
  
  14410   Sun Jan 20 23:41:00 2019 JonOmnistructureVACNotes on vac serial comm, adapter wiringI've attached my handwritten notes
covering all the serial communications in
the vac system, and the relevant wiring for
 Jon_wiring_notes.tar.gz 
  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 
  14589   Thu May 2 15:15:15 2019 JonOmnistructureComputerssusaux machine renamedNow that the replacement susaux machine
is installed and fully tested, I renamed
it from c1susaux2 to c1susaux and updated
  
  14590   Thu May 2 15:35:54 2019 JonOmnistructureUpgradec1susaux upgrade documentationFor future reference:


The updated list
of c1susaux channel wiring (includes the
  
  14600   Thu May 9 22:26:39 2019 JonOmnistructurePSLSecond ADC added to PSL Acromag crateThis evening I added a second ADC module
to the prototype Acromag chassis. This chassis
can now read out all the PSL diagnostic channels.
 IMG_3291.jpg 
  14814   Fri Jul 26 19:53:53 2019 JonOmnistructureCamerasGigE Camera ServerI've started setting up the last
new rackmount SuperMicro as a dedicated server
for the GigE cameras. The new machine is
  
  15067   Tue Dec 3 20:32:37 2019 ranaOmnistructureDAQNDS2 situationRecently,
accordian to Gautam, the NDS2 server has
 getData.pychanlist.txt 
  15284   Thu Mar 26 17:41:18 2020 JonOmnistructureBHDBHD docs compilationSince there has been a proliferation of
BHD Google docs recently, I've linked
them all from the BHD
  
  15412   Thu Jun 18 22:33:57 2020 JonOmnistructureVACVac hardware purchase listReplacement Hardware Purchase List

I've
created a purchase
list of hardware needed to restore the aging
  
  131   Wed Nov 28 16:18:15 2007 AlbertoMetaphysicsEnvironmentso clean you can eat on itI tidied up the desks in the lab, brought
the Spectrum Analyzers back to the Salumeria
(you don't want to know about that), sorted
 DSC_0180.JPGDSC_0181.JPG 
  180   Fri Dec 7 14:14:48 2007 robMetaphysicsComputer Scripts / Programstdsread problems on Solaris
[COLOR=darkblue]tdsread[/COLOR] has developed
a strange new illness, whereby it cannot
  
  277   Sun Jan 27 13:13:21 2008 tobinMetaphysicsGeneraldepartureIt's been grand.  Thanks for having me!

GWAVES IN '08!
  
  374   Thu Mar 13 03:07:19 2008 LisaMetaphysicsEnvironmentCoolness at the 40mMy first (and hopefully not last) week at
the [COLOR=orange]40m lab[/COLOR] is ending
:(
  
  438   Tue Apr 22 22:19:02 2008 robMetaphysicslorejiggling sliders
In the interests of tacit communication of
scientific knowledge, I here reveal a nugget
  
  652   Wed Jul 9 15:04:22 2008 steveMetaphysicsPhotosSURFs helping handsSurf students are helping out with baffle
cleaning.
 surfjob.png 
  657   Thu Jul 10 23:27:57 2008 JohnMetaphysicsCamerasSecret handshakesRob and I have joined the ranks of the illuminati
and exercised our power.
  
  658   Fri Jul 11 00:30:24 2008 robMetaphysicsComputersstrange SUS controllers
[I]rob, johnnie[B]M[/B][/I]
  
  716   Tue Jul 22 16:50:09 2008 steveMetaphysicsEnvironmentprofessorial clean up of work benchAtm1: is showing the spiritual satisfaction
after work bench clean up by the professor
himself.
 ranaclup.pngcleanup2.png 
  1025   Fri Oct 3 19:38:02 2008 robMetaphysicsEnvironmentThe Gatekeeper
Found this lady outside the door of the 40m
lab a few nights ago.
 DSC_0409.JPG 
  1026   Sat Oct 4 07:23:42 2008 KojiMetaphysicsEnvironmentThe GatekeeperHi, this is Koji from Japan.

I am afraid that this is a poisonous spider,
  
  1076   Thu Oct 23 18:51:19 2008 AlbertoMetaphysicsComputerseLogI checked it and the latest version of the
elog software, the 2.7.5 (we have the 2.6.5)
has, among new nice features, the very good
  
  2228   Tue Nov 10 17:49:20 2009 AlbertoMetaphysicsComputersTest Point Number MappingI found this interesting entry by Rana
in the old (deprecated) elog : here
I wonder if Rolf has ever written
  
  2439   Mon Dec 21 08:16:54 2009 steveMetaphysicsPEMjackhammering next doorAt ITMX, on the CES side, 5 Ft  from
the wall the jackhammer is on. The susses
are holding well.
  
  2489   Fri Jan 8 18:20:12 2010 steveMetaphysicsTreasureRob now can concentrate on his thesisWe are celebrating Rob's promotion to thesis
poetry.  These pictures were taken on
December 9, 2009
 rob2.JPGrob3.JPGrob1.JPG 
  2667   Thu Mar 11 15:24:51 2010 steveMetaphysicsEnvironmentIFO was well protected

    
        
  
  2763   Sun Apr 4 17:32:07 2010 AlbertoMetaphysicsGeneralnew y-arm?


   
        
            
  
  3592   Tue Sep 21 15:33:02 2010 steveMetaphysicsTreasureWagonga alartJohn Miller has arrived from Australia
with 3 bags of  Wagonga Coffee. Trade
bargaining has started on
 P1060866.JPGP1060872.JPG 
  3751   Thu Oct 21 10:44:56 2010 steveMetaphysicsTreasure1987 supernova tapes plus....?I'm cleaning out to make room for our new
optical cabinet. Are we keeping these? There
are  ~20  pieces of 10" od
 P1060932.JPG 
  4257   Mon Feb 7 19:21:32 2011 Beard PapaMetaphysicsPhotosThe Adventures of Dr Stochino and Beard Papa    
  4653   Fri May 6 15:42:55 2011 valeraMetaphysicsIOOInput mode cleaner length and 11 MHz modulation frequency After Kiwamu set the REFL11 phases
in the PRMI configuration (maximized PRM->REFL11I
reesponse) I tried to measure the MC length
  
  4978   Fri Jul 15 19:00:18 2011 dmassMetaphysicselogCrashesElog crashed a couple times, restarted
it a couple times.
  
  5128   Fri Aug 5 20:44:26 2011 jamieMetaphysicsTreasureFilm crew here Monday morningJust a reminder that a film crew will
be here Monday morning, filming Christian
Ott for some Discovery channel show.
  
  5129   Fri Aug 5 22:54:29 2011 kiwamuMetaphysicsTreasureCrane crew here Monday morningAlso, according to Steve, there will be some
crane guys for fixing the Y end crane issue
  
  5139   Mon Aug 8 13:24:00 2011 steveMetaphysicsTreasure Monday morning

    

       
            
 P1080147.JPG 
  5750   Fri Oct 28 02:41:18 2011 SureshMetaphysicselogelog unresponsive: restartedElog did not respond despite running the
/cvs/cds/caltech/elog/start-elog.csh 
script two times.  
  
  6059   Thu Dec 1 12:27:51 2011 ZachMetaphysicsRF SystemRAM diagnosis/suppression plan?It seems like there is some confusion---or
disagreement---amongst the lab about how
  
  6069   Mon Dec 5 09:46:21 2011 ZachMetaphysicsRF SystemRAM diagnosis/suppression plan?Since no
one has made any comments
  
  6722   Thu May 31 00:56:13 2012 JamieMetaphysicsComputersPlease remember to check in code changesI know it's really hard to remember, but
our future selves will thank us dearly if
we remember to commit all of our code changes
  
  7301   Tue Aug 28 18:28:21 2012 janoschMetaphysicsRingdownripples Let's see if the ripples observed
in the MC ringdown can be due to tilt
motion of the mirrors.
  
  7302   Tue Aug 28 19:06:32 2012 KojiMetaphysicsRingdownripples Isn't it just a ringing of the intracavity
power as you shifted the laser frequency
abruptly?
  
  7303   Tue Aug 28 19:21:37 2012 janoschMetaphysicsRingdownripples Hmm. I don't know what ringing really
is. Ok, let's assume it has to
do with the pump... I don't see how
  
  7304   Tue Aug 28 20:23:54 2012 KojiMetaphysicsRingdownripples Laser frequency shift = longitudinal motion
of the mirrors
Ringing: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-20-24-2463
  
  7305   Wed Aug 29 09:35:03 2012 janoschMetaphysicsRingdownripples 2Ok, so the whole idea that mirror motion
can explain the ripples is nonsense. At least,
when you think off the ringdown with
  
  7356   Fri Sep 7 00:08:10 2012 janoschMetaphysics baffle clipping lossWith a curvature radius of about 57m
for the ETMs, flat ITMs at the beam waist,
and using 39m for the arm lengths, one finds
  
  8376   Fri Mar 29 19:56:02 2013 GabrieleMetaphysicsLSCLock of PRMI on sidebandsI finally managed to get long stretches
of PRMI lock, up to many minutes. The lock
is not yest very stable, it seems to me that
 lock_prmi5.pdflock_prmi6.pdflock_prmi7.pdfoscillation.pdflock_prmi8.pdf 
  8380   Mon Apr 1 09:25:35 2013 JenneMetaphysicsLSCLock of PRMI on sidebands[Gabriele, Jenne]
I put a notch in FM10 for both MICH
and PRCL at 628Hz, to try to prevent us from
  
  9028   Mon Aug 19 10:16:15 2013 PicassoMetaphysicsTreasureoutsider art   ranasglory.png 
  9192   Thu Oct 3 02:46:58 2013 ranaMetaphysicsPEMUSGS Furlough   ObamaCare_GOP.png 
  10278   Sat Jul 26 14:45:33 2014 GabrieleMetaphysicsASCResponse of POP QPD Koji asked me to perform a simulation
of the response of POP QPD DC signal to mirror
motions, as a function of the CARM offset.
 pop_qpd_all.pngpop_qpd_carrier.pngpop_qpd_sb.pngfoldeddoublecavity.mistpop_qpd.m 
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