• KAGRA
• Commissioning
• DailyWork
• 2019-05-31

2019/5/31(Fri.)

Schedule

• 5/22-23: MZ release from PSL

• 5/20-24: Exchanging cryo valves.

• 5/27-6/2: Y arm mass lock.

• 5/29: RT PC maintenance -> go to safe mode for all VIS connected Dolphin (specially BS)

• 6/3-6/14: Installation of TMS for ETMY
• 6/8: Engineering run
• ITMX

  • 5/22AM~: tuned off cryostat cooler, finesse measurement for Xarm

  • 5/22AM~: tuned off shield cooler, finesse measurement for Xarm

• ETMX

  • 5/2: Cooling start

• ITMY

  • 5/23AM~: tuned off cryostat cooler, finesse measurement for Yarm

• ETMY

  • 5/17~: tuned off ETMY cryostat cooler

• Long term:
  • 4/22-5/31: Yarm commissioning
  • 5/27-6/30: DRMI commissioning
  • 7/1-8/9: DRFPMI commissioning
  • 8/12-10/4: DRFPMI ASC
  • 10/7-11/15: Post Commissioning
  • 11/18-12/13: Noise hunting

Note

Night work

Weekend

Report of work

• Type A: VIS team is changing all the TYPE A models for damping schemes.
• Type A, CRY, COM: ITMX is fluctuating a lot.
• COM: Yarm finesse was 1290, a bit lower than before. It might be contamination.
• VIS damping worked well.
• COM: Y arm lock: New filters will be applied tonight.

Work plan

• Killing ITMX resonance.
• Finesse measurement for both arm.