• KAGRA
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• VIS
• VISMinutes20210416

Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date : 13:30-

Participants :

Post O3 Upgrade portal

Schedule

• IX: Oplev will be finalized in April. Height and alignment adjustments are on going. ACC will be installed in April.
  • Height adjustment of the pre-isolator with pistons.
    • Min. Mid. Max. 21.4.7 High Mid Low Ballast

F0 -22 -18 -14 -18 -6500 2 1500 0 18000 -3.5 25200 -5.5 F1 65.5 66 70 66 900 1.5 10200 0 12200 -0.5 12300 -0.5 F2 67.5 68.5 70 68.5 6800 0 6900 0 6800 6800 0 F3 67.5 68.5 69.5 67.5 -3600 0 -3600 0 -3600 -3600 0 BF 66.5 67.5 68.5 67 4000 0.5 6100 0 6100 6200 0 BF body 70/73/73 76/78/78.5 70/73/72 65.5/67/67 TM -4 2 -11.5

• IY: Remedy of the pre-isolator will be postponed.
• EX: Height and alignment adjustments are scheduled in 4/20-23.
• EY: Installation of the tower will be restarted in May. Removing of the maraging rod is necessary.

Status

• Corrugate tube fixing jig: They will be prepared by the end of May.
• Commissioning in air: From mid. May for IX.
• Commissioning in vacuum:
• Acceptance check: Check items for in-air commissioning should be confirmed on the payload.
• PF actuator: After the commissioning for suspension.
• Jig for FC painting:
• Overall commissioning:
• Procedure of TM height setting: Prepare for the measurement in the first in-vacuum commissioning in IX.

Discussion

VIS Meeting

14:30-

Participants:

Schedule

See Schedule

• Type-A team: EXV 4/20-23
• Type-B team: Remain work on Type-B/Bp.

Milestone

• IMC suspensions are ready in air [40] will finish 2011/04/21.

• PRs are ready in air [643] will finish 2011/07/09.

• ETMX is ready in air [656] will finish 2021/08/25.

• ITMX is ready in air [657] will finish 2021/08/31.

• ETMY is ready in air [658] will finish 2021/09/16.

• ITMY is ready in air [659] will finish 2021/11/08.

• BS is ready in air [691] will finish 2011/11/24.

• SRs are ready in air [663] will finish 2011/12/20.

• Output suspensions are ready in air [695] will finish 2011/12/21.

• TMSY is ready in air [708] will finish 2011/??/??.

• TMSX is ready in air [684] will finish 2011/??/??.

2021/03/29 updated

Klog

BS

• 16447 Support for common Tower/Payload model files: Type-B(BS) supports TOWER_MASTER and PAYLOAD_MASTER. , satoru.ikeda

General

• 16446 Model files have been modified. , satoru.ikeda

• 16445 Buoyancy effect in PR suspensions. , fabian.arellano

• 16465 Laser level deviation from the horizontal. , fabian.arellano

• 16465 Laser level deviation from the horizontal. , fabian.arellano

  • 16466 Comment , tomotada.akutsu

IX

• 16468 Tuning of LVDT type accelerometer for ITMX , kouseki.miyo

• 16365 Wiring the release sensor (outside the vacuum chamber) , naohisa.satou

  • 16438 Comment , naohisa.satou

• 16421 Height adjustment of ITMX , ryutaro.takahashi

  • 16458 Comment , ryutaro.takahashi

  • 16472 Comment , ryutaro.takahashi

MCF

• 16463 Taking picture of MCo coils , takaaki.yokozawa

PR2

• 16417 Tightening of the inner wire locating clamps. , fabian.arellano

  • 16440 Comment , fabian.arellano

  • 16444 Comment , fabian.arellano

  • 16460 Comment , fabian.arellano

  • 16469 Comment , fabian.arellano

This is generated by python script in /users/Miyo/dropbox/Script/scrapping/main.py.

Summary Report

TypeA

TypeB

Type-Bp

TypeC

Electronics

Control

Safety

Discussion

Travel Plans

The week from 4/19

• Takahashi: 4/19-23
• Sato: 4/19-23
• Hirata: 4/19-23

The week from 4/26

• Takahashi: 4/26-28
• Sato: 4/26-5/1
• Hirata: 4/26-28

Next meeting

• 2021/4/23(FRI)