Minute of KAGRA commissioning meeting

• Date: 2018/10/30 11AM~12PM
• Attendance: Miyakawa, Oshino
  • Zoom: Ushiba, Aso, Nakano, Izumi, Somiya

Schedule

• MZ work will be done during daytime until 11/26.
• Y arm alignment will start from 11/26 to 12/9 with a parallel work on X arm commissioning.

• X arm lock
  • PR3 had better motion. Oplev has some trouble on cover.
  • Currently locking time (~1hour) might be limited by iMC lock.
• Laser, PSL, IOO report
  • MC lock is lost every 2-3hours.
  • Accelerometers see some disturbance.
• OMC installation
  • Locked by independent laser using one PD by dither method.
  • Congratulation!
  • LIGO has 64kHz loop on PI for beacon. It is not yet sure that the beacon is needed in KAGRA.
• DGS
  • Scheduling for maintenance time on Wednesday morning. DAC and ITMY will be stopped.
• NAB PD
  • Satellite box arrived.

Others

• Next meeting: 11/13.