• KAGRA
• Commissioning
• Weekly
• 20190311
• Agenda

2019/3/11 Commissioning meeting topics

• Assignment of staffs

  • https://teamup.com/kswnmta8p18h6u1uab

Schedule

• Center

  • 2/26-27: Venting

  • 2/28-3/15: Health check and maintenance for VIS

    • PRM: One flag was dropped. -> leave it

    • 3/6 PR3: range -> incline by 20-30mrad at mirror because of bistable.

    • 3/4-8 PRM: Misalignment does not reach where beam hits damper.

    • ~3/15 BS: Yaw offset adjustment by hand. -> 3/5-6

  • 3/5 afternoon or 3/6 morning: Coolers for ITMs will be stopped for 2-3 hours to change water.

  • 3/18-19: Re-alignment
  • 3/19: Closing
  • 3/20: pump down
• Yend

  • 1/25-2/20: Yend Pcal finalization

  • 3/5: EYA remaining works by Enomoto, Inoue.

  • 2/25-3/5: Yend WAB finalization

  • 3/6: Y end closing (no laser hazard at least in the morning)

  • 3/7: Y end pump down

    • 3/7,8: leak test

  • 3/27: Cooling start
  • 4/23: Cooling done
• Xend

  • 2/11-2/14: Xend NAB installation

  • 2/21: Removing FC, Payload release

    • 2/27: ETMX release

  • 2/23-3/6: Xend Pcal finalization 1

    • Periscope installation

    • 3/6: Beam position by IR and Green

  • 3/5 AOS: EY and EX(if they have time) work.

  • 3/6: Green X alignment (no IR), and no hazard at Y end.

  • 3/11, 18,19: Xend WAB finalization.
  • 3/11~3/15: ETMX tuning.
  • 3/19: Heatlink etc.
  • 3/19: ETMX finalization by Takahashi
  • 3/18,19: ETMX alignement
  • 3/21 closing
  • 3/22 Pumping down
    • Leak test
  • 4/1: Cooling start
  • 4/28: Cooling done
• 3/18~ : Night work starts, daily meeting will be moved to 1PM
  • Summary of work will last for a while in the morning meeting.

• 2/18-2/22: PRMI commissioning

• 3/25~?: DRMI commissioning
• 3/25-5/?: Y arm commissioning
• 5/?-?/?: FPMI commissioning

Discussion

• Schedule estimation for commissioning.
  • Necessary term for each task:
    • Y arm lock with green light: 1week
    • TF measurement for hierarchy control: 2-4weeks, depending on fluctuation of mass
    • Type A payload matrix diagonalize: 2-4weeks, after cooling down
    • Y arm lock with mass feedback: 1week
    • X arm lock with green light: 1week
    • FPMI lock: 1week
  • Example1:
    • 3/20-3/27: ETMY TF measurement for hierarchy control 1.
    • 3/27: ETMY cooling start
    • 4/23: ETMY cooling done
    • 4/22-5/10: ETMY TF measurement for hierarchy control 2.
    • 4/25-5/17: ETMY payload matrix diagonalize
    • 5/7-5/10: Y arm lock with green light
    • 5/20-5/24 Y arm lock with mass feedback to ETMY
    • 4/1: ETMX cooling start
    • 4/28: ETMX cooling done
    • 4/29-5/10 X arm lock with green light
    • 5/27-31: FPMI lock
    • when both ends are not available: DRMI lock acquisition. It will be done by 5/31
    • 6/3~ DRFPMI lock acquisition
  • Example2: Needs ETMI tuning after FPMI commissioning
    • 3/25-3/29: Y arm lock with green light
    • 4/1: ETMY cooling start
    • 4/26: ETMY cooling done
    • 3/29: ITMY cooling done
    • 4/1-4/26: ITMY TF measurement for hierarchy control 2.
    • 4/1-4/26: ITMY payload matrix diagonalize
    • 5/7-5/10 Y arm lock with mass feedback to ITMY
    • 4/1: ETMX cooling start
    • 4/28: ETMX cooling done
    • 5/7-5/10 X arm lock with green light
    • 5/13-17: FPMI lock
    • when both ends are not available: DRMI lock acquisition. It will be done by 5/17
    • 5/20~ DRFPMI lock acquisition
• Pcal finalization (Inoue)
• Circuit measurement plan (Haino)