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 * New vacuum pumps for V-chambers: Setup of the ion pumps.  * New vacuum pumps for V-chambers: Leak check in EY. Opening the GV in EXV.

Agenda/Minutes

Zoom Meeting


CRY+VIS Interface Meeting

Date: 2022/3/25 13:00-13:40

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

Post O3 Upgrade portal

Schedule

  • IX:
  • EX:
  • IY: Height adjustment. H2 geophone. TM actuator.
  • EY: Recovery of GAS filters.
  • Type-B/Bp/C: Health check after peeling of FC in SR2. Leakage at the feedthrough flange in IMC, replacement was scheduled on 4/7.

Status

  • Replacement of flip cables: TMS.
  • TM height setting: ITMY.
  • Oplev: Summarized the remain works.
  • ACC:
  • Commissioning in air: Alignmenet of PR2.
  • Commissioning in vacuum:
  • Acceptance check:
  • PF actuator: At the in-vacuum commissioning.
  • New vacuum pumps for V-chambers: Leak check in EY. Opening the GV in EXV.
  • Heater control: Test in IXV/EXV.
  • TMS:

Discussion


VIS Meeting

Date: 2022/3/25 14:00-14:15

Participants: Takahashi, Terrence, Ushiba, Aso, Tanaka

Summary Report

Type-A

  • Recovered the GAS filters in EY.
  • Investigated the H2 geophone in IY.
  • Adjusted the TM height in IY.

Type-B

  • Health check after peeling of FC in SR2.

Type-Bp

Type-C

  • Lekage at the feedthrough flange was found in IMC. The flange will be replaced on 4/7.

Electronics

  • BIO switches for the IP (H3) dewhitening filter was broken in IY.

Control

Schedule

See Schedule

  • Type-A team:
  • Type-B team:

Safety

Discussion

Travel Plans

(Date in Kamioka)

The week from 4/4

  • Takahashi: 4/5-8
  • Sato: 4/5-8
  • Hirata: 4/5-8

The week from 4/11

  • Takahashi: 4/12-15
  • Sato: 4/12-15
  • Hirata: 4/12-15

Next meeting

  • 2022/4/8(FRI)

KAGRA/Subgroups/VIS/VISMinutes20220401 (last edited 2022-04-01 14:29:14 by RyutaroTakahashi)