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← Revision 12 as of 2022-08-19 14:16:42 → ⇥
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Editor: RyutaroTakahashi
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Date: 2022/8/19 13:00- Date: 2022/8/19 13:00-13:20
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Participants: Participants: Takahashi, Uchiyama, Yokozawa, Miyoki, Tomaru, Ushiba, Akutsu, Hirata, Yasui, Ikeda, Node
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 * Type-Bp: OpLev rearangement.  * Type-Bp: Oplev rearrangement in PR3. Taking 360deg pictures inside the chambers in the next week.
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 * Oplev:  * Oplev: Check of the beam pass in the next week.
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 * Commissioning in vacuum: ALS DARM was locked.  * Commissioning in vacuum: IR beam came to the AS port.
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 * New vacuum pumps: Side hatch in SRM on 8/22.  * New vacuum pumps: Side hatch in SRM on 8/23.
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Date: 2022/8/19 14:00- Date: 2022/8/19 14:00-14:15
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Participants: Participants: Takahashi, Fabian, Tanaka, Aso
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 * Offloaded the BF GAS in IY.
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 * I posted plots comparing BS and SR2 TFs calculated with the Matlab rigid-body model. See [[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=21813 | klog 21813]]
 * Review at 15:00 on 19th.
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 * Type-B: Height check. Rubbing check. Adjustment of F1 damper in BS/SR2. Adjustment of F0 FR in BS.  * Type-B: Height check. Rubbing check. Adjustment of F1 damper in BS/SR2. Adjustment of F0 FR in BS. Oplev check (various).
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 * How to set the F0 FR in BS?

The present temperature is 23.5. Though we can use the heater on the chamber later, we should keep a margine of the cooling power. 23.2 is optimal?

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: 2022/8/19 13:00-13:20

Participants: Takahashi, Uchiyama, Yokozawa, Miyoki, Tomaru, Ushiba, Akutsu, Hirata, Yasui, Ikeda, Node

Post O3 Upgrade portal

Schedule

  • Type-A: Offload of BF GAS in IY.

  • Type-B: Polarity Check of magnets. Investigation of F1 damper. Recovery of geophone signals in SR2/SRM. Preparation for Review.

  • Type-Bp: Oplev rearrangement in PR3. Taking 360deg pictures inside the chambers in the next week.
  • Type-C:

Status

  • Replacement of cables: EXT and IY/EX remain.
  • TM height setting: Type-B in the next week.
  • Oplev: Check of the beam pass in the next week.
  • ACC:
  • Commissioning in air:
  • Commissioning in vacuum: IR beam came to the AS port.

  • Acceptance check: DropboxPaper

  • New vacuum pumps: Side hatch in SRM on 8/23.
  • Heater control: Pending.
  • TMS: Replacement of pressure gauge in EX.

Discussion

VIS Meeting

Date: 2022/8/19 14:00-14:15

Participants: Takahashi, Fabian, Tanaka, Aso

Summary Report

Type-A

  • Offloaded the BF GAS in IY.

Type-B

  • I posted plots comparing BS and SR2 TFs calculated with the Matlab rigid-body model. See klog 21813

  • Review at 15:00 on 19th.

Type-Bp

Type-C

Electronics

Control

Schedule

  • Type-A:
  • Type-B: Height check. Rubbing check. Adjustment of F1 damper in BS/SR2. Adjustment of F0 FR in BS. Oplev check (various).
  • Type-Bp:
  • Type-C:

Safety

Discussion

  • How to set the F0 FR in BS?

The present temperature is 23.5. Though we can use the heater on the chamber later, we should keep a margine of the cooling power. 23.2 is optimal?

Travel Plans

(Date in Kamioka)

The week from 8/22

  • Takahashi: 8/22-26
  • Sato: 8/22-26
  • Hirata: 8/22-26

The week from 8/29

  • Takahashi:
  • Sato:
  • Hirata:

Next meeting

  • 2022/8/26(FRI)

KAGRA/Subgroups/VIS/VISMinutes20220819 (last edited 2022-08-19 14:16:42 by RyutaroTakahashi)