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 * bKAGRA phase 1 optical configuration study [Aso]  * bKAGRA phase 1 optical configuration study [Aso]: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=5199|JGW-G1605199]]
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    * initiated Optickle 2 modeling: [[https://granite.phys.s.u-tokyo.ac.jp/trac/LCGT/browser/trunk/mif/KAGRAOptickle/bKAGRAPhase1/|KAGRAOptickle SVN]] (login required)
    * Optickle (Optickle2) seminar on July 1 [[http://densuke.biz/list?cd=bNJ9WSPSEQNxheCy|densuke]]
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 * bKAGRA phase 1 commissioning plan [Michimura]
  * document posted later
 * Mirror absorption measurement status (if any) [Hirose]		   * any others?
 * bKAGRA phase 1 initial alignmet / commissioning plan [Michimura]: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=5274|JGW-T1605274]]
  * 5 months (2017.5-10) for 300 K PRMI with dummy payload, 1 week (2018.1) for CRYp PRMI before cooling down
  * seems like we have enough time for ISC
  * everything should be ready by 2017.5, and most of the commissioning should be done by 2017.10

----

 * bKAGRA optical layout around PRC [Aso]
  * POY beam is clipped by PR3 optical bench suspension wire
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5261|JGW-T1605261]] (cartoon)
 * iKAGRA post-run calibration mystery [Aso]
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1767|klog #1767]]
  * mysterious LPF was probably from saturation (is this end of the story?)
  * Miyo-kun did time delay fitting: [[https://nbviewer.jupyter.org/urls/dl.dropbox.com/s/e7tj2xvc8krdo2w/Post-Run%20MICH%20Calibration.ipynb|Jupyter Notebook]], [[https://www.dropbox.com/sh/alk6mothy435dis/AABeRhaV6RRZ1CfUqnq6bc7ua?dl=0|Files in Dropbox]]
 * Requirement for the noise of watchdogs for coil drivers [Aso]
 * Viewport quality for GV between SRM and OMMT [Akutsu]
 * bKAGRA phase 1 analog electronics request for AEL [Michimura]
  * Quad IQ Demodulator LSC: 7 for full bKAGRA (5 in stock)
   * is heating problem solved? [AEL]
  * Quad IQ Demodulator ASC: 22 for full bKAGRA (0 in stock)
  * RF Distribution Amplifier: 10 for full bKAGRA (1 handmade in stock)
  * DC QPD Interface: 8 (+ AOS) for full bKAGRA (20 in stock) -> OK
  * RF Patch Panel modification (too thick to fasten nuts) [who?]
  * RF PD modification (Dsub 9pin won't fix tight, breaks easily with single power supply) [Doi?]
  * single-ended to differential, differential to single-ended: 10 each being prepared by AEL -> OK
 * bKAGRA ISC cabling [Michimura/Doi]
  * No reply from Doi-san
 * Mirror absorption measurement status [Hirose]

ISC Meeting on 2016/6/13

2016/5/16 14:00 - 15:00

Participants:

Agenda

  • MIF membership [Michimura]

  • bKAGRA phase 1 optical configuration study [Aso]: JGW-G1605199

    • BS angle changes slightly (0.0187 deg) -> OK

    • beam spot on PR3 shifts by 5 mm -> OK

    • move PR2 and PR3 1 cm each to stabilize PRC -> OK

    • HOM structure / LSC / ASC check -> to be done [Michimura]

    • room temperature ETM availability -> ? [Hirose]

    • any others?

  • bKAGRA phase 1 initial alignmet / commissioning plan [Michimura]: JGW-T1605274

    • 5 months (2017.5-10) for 300 K PRMI with dummy payload, 1 week (2018.1) for CRYp PRMI before cooling down
    • seems like we have enough time for ISC
    • everything should be ready by 2017.5, and most of the commissioning should be done by 2017.10

  • bKAGRA optical layout around PRC [Aso]
    • POY beam is clipped by PR3 optical bench suspension wire

    • JGW-T1605261 (cartoon)

  • iKAGRA post-run calibration mystery [Aso]
  • Requirement for the noise of watchdogs for coil drivers [Aso]
  • Viewport quality for GV between SRM and OMMT [Akutsu]
  • bKAGRA phase 1 analog electronics request for AEL [Michimura]
    • Quad IQ Demodulator LSC: 7 for full bKAGRA (5 in stock)
      • is heating problem solved? [AEL]
    • Quad IQ Demodulator ASC: 22 for full bKAGRA (0 in stock)
    • RF Distribution Amplifier: 10 for full bKAGRA (1 handmade in stock)

    • DC QPD Interface: 8 (+ AOS) for full bKAGRA (20 in stock) -> OK

    • RF Patch Panel modification (too thick to fasten nuts) [who?]
    • RF PD modification (Dsub 9pin won't fix tight, breaks easily with single power supply) [Doi?]

    • single-ended to differential, differential to single-ended: 10 each being prepared by AEL -> OK

  • bKAGRA ISC cabling [Michimura/Doi]
    • No reply from Doi-san
  • Mirror absorption measurement status [Hirose]

back to Meetings page

KAGRA/subgroup/ifo/MIF/Minutes20160613 (last edited 2016-07-25 10:30:07 by YutaMichimura)