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 * Laser power of oplev started dropping, specially lasers where are close to cryostat for year term.

 * Phase 1 summarize should talk wide range view.
  * Type A has double stable point.
  * Monitor for water level, and vacuum gage for weekend should be implemented.
  * Patrol light should be implemented soon, even manual one.

Minute of KAGRA commissioning meeting


  • Date: 2018/5/1 11AM~12PM
  • Attendance: Miyakawa, Kokeyama, Aso, Miyoki, Ushiba, Tomaru
    • eZuce: Suzuki, Uchiyama, Takahaashi, Ohashi, Haino


1. Operation

  • Going well.
    • Duty cycle is 80-90%.
    • iMC is quite stable.
    • DAC of PR3 was dead. That was the biggest trouble.

2. Report of work of the last week and plan of work

  • IFO, ETMs: *Izumi, Enomono
    • Alignment work is mainly done. 3 DOF is conetolled PR3 by ETMX BS ETMY , ETMY is controlled by oplev, ETMX has dither signal.
    • Locking time is ~several hours. Longest was 10 hours or something.
    • Gardidian code was mainly reused by what it was made in KAGRA.

3. Tasks or discussions

  • 5/28 extend chief meeting for looking back phase 1.

Others

  • Next meeting: 4/24

KAGRA/Commissioning/Weekly/20180501/Minute (last edited 2018-05-01 11:49:04 by OsamuMiyakawa)