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Editor: RyutaroTakahashi
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Date: 2022/9/9 13:00- Date: 2022/9/9 13:00-13:15
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Participants: Participants: Takahashi, Yokozawa, Aso, Uchiyama, Yasui, Ikeda, Hirata, Ushiba, Sato, Miyoki
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 * Type-A: Recovery of the BF H2 LVDT in IY. Replacement of the cables in EX.  * Type-A: Recovery of the BF H2 LVDT in IY. Replacement of the cables in EX. Replacement of the coil driver in EX.
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 * Oplev:  * Oplev: Some adjustments will be necessary after the evacuation.

Contents

  1. Agenda/Minutes
  2. CRY+VIS Interface Meeting
    1. Schedule
    2. Status
    3. Discussion
  3. VIS Meeting
    1. Summary Report
      1. Type-A
      2. Type-B
      3. Type-Bp
      4. Type-C
      5. Electronics
      6. Control
    2. Schedule
    3. Safety
    4. Discussion
    5. Travel Plans
    6. Next meeting

Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date: 2022/9/9 13:00-13:15

Participants: Takahashi, Yokozawa, Aso, Uchiyama, Yasui, Ikeda, Hirata, Ushiba, Sato, Miyoki

Post O3 Upgrade portal

Schedule

  • Type-A: Recovery of the BF H2 LVDT in IY. Replacement of the cables in EX. Replacement of the coil driver in EX.
  • Type-B: Closing of the chambers. Tightening of the screws for the chamber legs. Setting of the dial gauges.
  • Type-Bp: Closing of the chambers.
  • Type-C:

Status

  • Replacement of cables: EXT remains.
  • TM height setting:
  • Oplev: Some adjustments will be necessary after the evacuation.
  • ACC:
  • Commissioning in air:
  • Commissioning in vacuum:

  • Acceptance check: DropboxPaper

  • Vacuum system: Pump down of the center area from 9/12.
  • Heater control: Pending.
  • TMS:

Discussion

VIS Meeting

Date: 2022/9/9 14:00-

Participants:

Summary Report

Type-A

  • Recovered the BF H2 LVDT in IY.
  • Replaced some exchange cables in EX.

Type-B

  • Takahashi-san installed dial gauges to measure the vertical displacement of the BS chamber during pumping down.
  • They tightened the screws of the chamber legs.
  • I corroborated that the BS IM-Y picomotor was working.
  • We had a lesson on how to monitor and compensate drifts of the suspension during evacuation.
  • We moved SR2 and SRM IPs close to their setpoints using the horizontal fishing rods.

Type-Bp

Type-C

Electronics

Control

Schedule

  • Type-A:
  • Type-B: Monitor of the evacuation.
  • Type-Bp: Monitor of the evacuation.
  • Type-C:

Safety

Discussion

Travel Plans

(Date in Kamioka)

The week from 9/12

  • Sato: 9/12-15
  • Hirata: 9/12-16

The week from 9/5

  • Takahashi: 9/20-22
  • Aso: 9/20-22

Next meeting

  • 2022/9/16(FRI)

KAGRA/Subgroups/VIS/VISMinutes20220909 (last edited 2022-09-09 14:16:03 by RyutaroTakahashi)