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 * Next meeting: 6/19.  * Next meeting: 6/26.

Minute of KAGRA commissioning meeting


  • Date: 2018/6/19 11AM~12PM
  • Attendance: Miyakawa, Aso, Yokozawa, Ohishi, Kokeyama, Miyoki, Tahara, Enomoto, Stefan, Tomura, Ushiyama, Nakano
    • eZuce: Ushiba, Izumi, Inoue, Yamamoto(Toyama), Suzuki, Hirose, Shoda


0. Schedule

  • k1ix0 will be needed by September for NAB PD.

Laser

  • Transmissivity of Faraday Isolator suddenly reduced 60% to 40%.
  • Starding Fiber amp failed due to too low power at the sensor.
  • We will use spare at Mio labs. We can use current low power laser, so schedule won't be changed so much.

IMMT

  • Changed titanium screws.
  • IMMT1 repare was done, with 1cm position accuracy.
    • 1cm is not enough(Izumi).
  • IMMT2 repare will be held 7/9~.

PMC

  • Offset was implemented.
  • Whitening will be implemented by daughter board.
    • Needs gain at low frequency in digital loop.

Useful scripts for RT-models

Others

  • Next meeting: 6/26.

KAGRA/Commissioning/Weekly/20180619/Minute (last edited 2018-06-19 11:44:01 by OsamuMiyakawa)