Minute of KAGRA commissioning meeting

• Date: 2019/7/2 11:00~12:00
• Attendance: Miyakawa, Koseyama, Aso, Nakano, Kozakai, Fabian, Miyoki, Takahashi, Akutsu, Inoue, Miyo, Washima, Ogaki, T. Yamamoto
• Zoom: Hiro Yamamoto, Ohashi, Uchiyama, Eleonora, Mio, Ushiba

Summary of last week

• ETMY misalignment was fixed.
• Investigation of polarization is going on.
• We keep central area for a while and keep DRMI characterization specially for control.
• We confirmed that we would have an engineering run on 7/13.

Discussion

• 12pm-6pm
  • PEM needs ~10min after run.
  • CAL needs free swinging Michelson.
• Michelson
• Action items for this month
  • Investigation for shape of reflection of both ITEX and ITMY.
    • P-pol shape with PRMI lock.
    • Rotating polarization of geen.
  • Control signal for PRMI/DRMI with polarization.
    • Education for DRMI from specialty.
  • Y arm lock with mass lock.
  • FPMI lock.
    • noise hunting.
  • Dampin test mass.

Others

• Next meeting: 7/2.