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 * bKAGRA phase 1 optical configuration study: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=5199|JGW-G1605199]] [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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 * bKAGRA phase 1 initial alignmet / commissioning plan: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=5274|JGW-T1605274]] [Michimura]  * bKAGRA phase 1 initial alignmet / commissioning plan [Michimura]: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=5274|JGW-T1605274]]
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  * everything should be ready by   * everything should be ready by 2017.5, and most of the commissioning should be done by 2017.10

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)