Minute of KAGRA commissioning meeting

• Date: 2018/4/10 11AM~12PM
• Attendance: Uchiyama, Aso, Miyakawa, Nagano, Enomono, Yamamoto
  • eZuce: Ohashi, Miyoki, Ushiba, Yokozawa, Tegoshi, Kimura, Shoda

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

• IFO, ETMs: Enomono, Ushiba
  • Michelson fringe could be seen yesterday!
    • Damping of ETMs is still not enough.
    • Needs damping for ETMX.
• RT model: Yamamoto
  • BS model was splitted into 4kHz and 16kHz. No glitch was seen since then.
  • Found how to start/stop Dolphin without killing RT models connected to Dolphin.
  • Needs preparation to send signals to ETMs.
• CAL: Yamamoto, Yokozawa
  • RT calibration using IMC as training of calibration will be tested soon.
  • Off line calibration using FIR filter won't be used in phase 1.
• DAQ
  • Recoding minute_raw of k1fw0 moved to SSD at k1tw0.

2. Emergency call list

• JGW-M1808139

3. Operation

• How to request the engineering things was announced.
  • Contact Hayakawa or Ohashi for facility, Awai or Miyoki for electric power, Tomura or Miyakawa for circuits.

4. Tasks or discussions

• DAQ fix -> Miyakawa, Yamamoto

• Selection of full channel -> DGS Yamamoto

• Selection of science channel -> Commissioning Izumi

• Screens at control room
  • Sensitivity.
  • PEM.
  • Needs laser safety information.

• GW alert: online alert in the control room might be prepared. -> Togoshi

Others

• Dust monitor using sapphire disk will be implemented around 4/10.
• 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.
• Gardian of TYPE A must be implemented and tested.
• Pump down meeting meeting at Fan hut: 12:30 at 4/5, 12:30 at 4/11
• Next meeting: 4/10