Differences between revisions 2 and 3
⇤ ← Revision 2 as of 2023-07-21 09:07:30 →
Size: 2052
Editor: RyutaroTakahashi
Comment:
← Revision 3 as of 2023-07-21 15:07:40 → ⇥
Size: 2333
Editor: RyutaroTakahashi
Comment:
Deletions are marked like this. Additions are marked like this.
Line 8: Line 8:
Date: 2023/7/21 14:00- Date: 2023/7/21 14:30-15:00
Line 10: Line 10:
Participants: Participants: Takahashi, Mitsuhashi, Yokozawa, Miyoki, Akutsu, Ikeda, Node, Hirata, Ushiba, Uchiyama
Line 21: Line 21:
 * Oplev:  * Oplev: Adjustment of the VER Oplev in IX.
Line 33: Line 33:
 * In-vacuum accelerometer for IOO: Removed the geophone pod from the OMC chamber.
 * Hight adjustments of Type-A in the cooling: [[https://paper.dropbox.com/doc/Hight-adjustment-in-cooling--B7ii3omB81JIm6khnBt_7fcaAQ-swWQ5h6M6lSs8yLp5D6dA|The procedure]].
 * Check of the length Oplev: 		 * In-vacuum accelerometer for IOO: Removed the geophone pod from the OMC chamber. Outgassing from the pod should be checked independently.
 * Hight adjustments of Type-A in the cooling: [[https://paper.dropbox.com/doc/Hight-adjustment-in-cooling--B7ii3omB81JIm6khnBt_7fcaAQ-swWQ5h6M6lSs8yLp5D6dA|The procedure]]. Cooling will be started in EX on 7/27.
Line 37: Line 36:
 * Temperature control for the Oplev: Preparing for the heater controller.  * Temperature control for the Oplev: Preparing for the heater controller. The power controllers were delivered.
Line 43: Line 42:
Date: 2023/7/21 10:00- Date: 2023/7/21 10:00-11:00
Line 45: Line 44:
Participants: Participants: Takahashi, Aso, Mitsuhashi, Sato, Hirata, Tanaka

Contents

  1. Agenda/Minutes
  2. CRY+VIS Interface Meeting
    1. Suspensions
    2. Other items
    3. Post O4a
    4. Discussion
  3. VIS Meeting
    1. Summary Report
      1. Type-A
      2. Type-B
      3. Type-Bp
      4. Type-C
      5. Electronics
      6. Control
      7. R&D
    2. Schedule
    3. Toward O5
    4. Discussion
    5. Next meeting

Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date: 2023/7/21 14:30-15:00

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

Acceptance check document

Suspensions

  • Type-A: Height adjustment toward the cooling.
  • Type-B:
  • Type-Bp:
  • Type-C:

Other items

  • Oplev: Adjustment of the VER Oplev in IX.
  • ACC: Test of the IP control with ACCs in IY.
  • Commissioning:
  • Vacuum system: Opened the OMC chamber again.
  • Heater control:
  • TMS:

Post O4a

  • Measurements of the DAC noise: The next time on 8/4.
  • Measurements on the sensor correction in SR2: 1 night.
  • Optimization of the damping control in PRs: Measurements 2 days, Test 3 days.
  • IP control with the ACCs: Postponed the long-term test in IY.
  • In-vacuum accelerometer for IOO: Removed the geophone pod from the OMC chamber. Outgassing from the pod should be checked independently.

  • Hight adjustments of Type-A in the cooling: The procedure. Cooling will be started in EX on 7/27.

  • Noise budget of the suspensions:
  • Temperature control for the Oplev: Preparing for the heater controller. The power controllers were delivered.

Discussion

VIS Meeting

Date: 2023/7/21 10:00-11:00

Participants: Takahashi, Aso, Mitsuhashi, Sato, Hirata, Tanaka

Summary Report

Type-A

  • Height adjustment toward the cooling.

Type-B

Type-Bp

Type-C

  • Damping of the OMC suspension.
    • Prototype test of the blade damper.
    • Design of the flexible pendulum damper.

Electronics

Control

R&D

  • Moved the TAMA-SAS tower from the warehouse to the ATC lab on 7/20.

Schedule

  • Monitoring and offload of Type-A during the cooling.

Toward O5

Discussion

Next meeting

  • 2023/8/4 10:30-

KAGRA/Subgroups/VIS/VISMinutes20230721 (last edited 2023-07-21 15:07:40 by RyutaroTakahashi)