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Revision 2 as of 2019-02-05 11:54:12
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Revision 3 as of 2019-02-05 12:18:10
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 *  * 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 inside chamber.
 * WAB is located pretty close to mirrors on ITMX and ITMY, so not important but no easy.
 * SRM beam damp will be designed. It will be installed in summer as the same time as middle baffle.
 * 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.

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)