• KAGRA
• Subgroups
• VIS
• VISMinutes20210115

Agenda/Minutes on 2021/1/22

Zoom Meeting

CRY+VIS Interface Meeting

13:30-

Participants:

Post O3 Upgrade portal

• Schedule for IX: Connection of ITMX is scheduled on 2/9.
• Schedule for IY: Cooling of payload is scheduled from 1/12.
• Schedule for EX: Connection of ETMX is available after 3/2.
• Corrugate tube fixing jig: Re-measurement at the beginning of March in IYV is planed.
• Commissioning in vacuum:
• Acceptance check items:
• Jig for FC painting: Under manufacturing.
• PF actuator: by the end of January.

VIS Meeting

14:00-

Participants:

Progress report

General

Type-A

• Installation in EYV.
  • Opened the top chamber. The cone bellows have been broken.
  • Assembled the DP and hung it from the BF.
  • Calibrated the LVDT for the BF.
  • Tuned the BF.
  • Installed the EQ stop for BF-DP to the chamber.

Type-B

Type-Bp

Type-C

Controls

Electronics

Towards O4

• Type-B remedy work is on going.
• Installation of Type-A was started in EY.
• Schedule.

  • Chart

• Procedure documents.

  • Type-A tower installation

  • Limit switches

  • Limit switch connecting guide

  • Replacement of TF blades

  • Wire gluing in PR3

  • Type-B remedying work

• Criteria in the acceptance test.

  • Inspection document (sample)

Safety

Discussion

Travel Plans

The week from 1/18

• Sato: 1/18-22
• Yano: 1/18-22

The week from 1/25

• Takahashi: 1/25-29
• Sato: 1/25-29
• Hirata: 1/25-29
• Yano: 1/25-29

Next meeting

• On 2020/1/22(Fri)