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⇤ ← Revision 3 as of 2024-01-04 14:51:10 →
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Editor: RyutaroTakahashi
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← Revision 7 as of 2024-01-05 13:39:56 → ⇥
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Editor: RyutaroTakahashi
Comment:
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Date: 2024/1/5 13:00- Date: 2024/1/5 13:00-13:30
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Participants: Participants: Takahashi, Akutsu, Ushiba, Uchiyama, Sato, Aso
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 * Type-Bp: TRIPPED. Update of the local control in PR2/3
 * Type-C: TRIPPED in OMMT1/2/OSTM. READY in MCI. LOCKACC. in IMMT1/2. Oplev loss in MCO/MCE.		  * Type-Bp: TRIPPED (PR3 would deviate much.) Update of the local control in PR2/3.
 * Type-C: TRIPPED in OMMT1/2/OSTM. READY in MCI. LOCKACC. in MCE/IMMT1/2. Oplev signal loss in MCO.
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 * Oplev: Investigating the MN LEN Oplev in EY.  * Oplev: Investigating the MN LEN Oplev in EY. BS was not fixed. Eyelis was covered with Al foil and the fiber edge was placed in the windshield.
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 * Vacuum system:  * Vacuum system: GVs were closed remotely.
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 * In-vacuum accelerometer for IOO: Leak test of the geophone pod was scheduled for 1/11, but it will be postpone.  * In-vacuum accelerometer for IOO: Leak test of the geophone pod was scheduled for 1/11, but it will be postponed.
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 * IMC open:
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Date: 2024/1/5 11:00- Date: 2024/1/5 11:00-12:00
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Participants: Participants: Takahashi, Mitsuhashi, Sato, Ushiba

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: 2024/1/5 13:00-13:30

Participants: Takahashi, Akutsu, Ushiba, Uchiyama, Sato, Aso

Acceptance check document

Suspensions

  • Type-A: TRIPPED. Height adjustment on 12/28 in EY. Test of the IP control in IY.
  • Type-B: TRIPPED.
  • Type-Bp: TRIPPED (PR3 would deviate much.) Update of the local control in PR2/3.
  • Type-C: TRIPPED in OMMT1/2/OSTM. READY in MCI. LOCKACC. in MCE/IMMT1/2. Oplev signal loss in MCO.

Other items

  • Oplev: Investigating the MN LEN Oplev in EY. BS was not fixed. Eyelis was covered with Al foil and the fiber edge was placed in the windshield.
  • ACC:
  • Commissioning:
  • Vacuum system: GVs were closed remotely.
  • Heater control:
  • TMS:

Post O4a

  • Measurements of the DAC noise: Type-C.
  • Optimization of the damping control in PRs:
  • IP control with the ACCs: Test in IY.
  • In-vacuum accelerometer for IOO: Leak test of the geophone pod was scheduled for 1/11, but it will be postponed.
  • Height adjustments of Type-A in the cooling: Continuing in EY.
  • IMC open:

Discussion

VIS Meeting

Date: 2024/1/5 11:00-12:00

Participants: Takahashi, Mitsuhashi, Sato, Ushiba

Summary Report

Type-A

  • Test of the IP control in IY.
  • Height adjustment of ETMY.

Type-B

Type-Bp

Type-C

Electronics

Control

R&D

  • TAMA-SAS experiment: Measurement of the IP+RL transfer functions.
  • Paper writing on the RL.

Schedule

  • Recovery of the suspensions in KAGRA.

Toward O5

Dropbox paper

  • Kick-off meeting for O5 task force on 1/16.
  • Preparation for the test of mini-GAS for the KFC suspension.

Discussion

Next meeting

  • 2024/1/19 10:00-

KAGRA/Subgroups/VIS/VISMinutes20240105 (last edited 2024-01-05 13:39:56 by RyutaroTakahashi)