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 * Attendance: Miyakawa, Kokeyama, Yamamoto, Oshino, Kozakai, Aso, Nakano
  * Zoom: Izumi, Yokozawa, Michimura
 * Attendance: Miyakawa, Nagano, Lucia, Nakano, Aso, Akutsu, Miyo, Kozakai, Yokozawa, T.Yamamoto
  * Zoom: Kokeyama, Oshino, Enomoto, Hirose, Inoue, Miyoki, Kokeyama, Ushiba
Line 10: Line 10:
 *  * Alignment seems to be on schedule by this weekend if no more serious trouble happens.
Line 12: Line 13:
 *  * Hirose-san will come on Thursday and look at mirror surface or surface inside chamber.
  * WAB is located pretty close to mirrors on ITMX and ITMY. The gap is only cm order, so it is not important to look at mirror surface, but no easy.
  * Even if mirrors surface was dirty, we would have no way to clean through such small gaps.
 * High sensitivity optical lever using Pcal beam looks good.
  * Noise budget should be considered if the new oplevs are used in the mirror control loop.
  * Commissioning team recommend to proceed it.

 * SRM beam damp for intentionally misaligned SRM will be designed. It will be installed in summer as the same time as middle baffle.
Line 16: Line 25:
 * Next meeting: 1/15.  * Next meeting: 2/12.

Minute of KAGRA commissioning meeting


  • Date: 2019/2/5 11:00AM~12PM
  • Attendance: Miyakawa, Nagano, Lucia, Nakano, Aso, Akutsu, Miyo, Kozakai, Yokozawa, T.Yamamoto
    • Zoom: Kokeyama, Oshino, Enomoto, Hirose, Inoue, Miyoki, Kokeyama, Ushiba


Schedule

  • Alignment seems to be on schedule by this weekend if no more serious trouble happens.

Discussion

  • Hirose-san will come on Thursday and look at mirror surface or surface inside chamber.
    • WAB is located pretty close to mirrors on ITMX and ITMY. The gap is only cm order, so it is not important to look at mirror surface, but no easy.
    • Even if mirrors surface was dirty, we would have no way to clean through such small gaps.
  • High sensitivity optical lever using Pcal beam looks good.
    • Noise budget should be considered if the new oplevs are used in the mirror control loop.
    • Commissioning team recommend to proceed it.
  • SRM beam damp for intentionally misaligned SRM will be designed. It will be installed in summer as the same time as middle baffle.


Others

  • Next meeting: 2/12.

KAGRA/Commissioning/Weekly/20190205/Minute (last edited 2019-02-05 12:18:10 by OsamuMiyakawa)