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 * Type-A: Test of the IP control with ACCs was postponed in IY. Offload of the GAS filters in IX.  * Type-A: Test of the IP control with ACCs was postponed in IY. Offloaded the GAS filters in IX on 7/3.

Agenda/Minutes

Zoom Meeting


CRY+VIS Interface Meeting

Date: 2023/7/7 13:00-

Participants:

Acceptance check document

Suspensions

  • Type-A: Test of the IP control with ACCs was postponed in IY. Offloaded the GAS filters in IX on 7/3.
  • Type-B:
  • Type-Bp:
  • Type-C:

Other items

  • Oplev: Check of the length Oplevs.
  • ACC: Test of the IP control with ACCs in IY.
  • Commissioning:
  • Vacuum system:
  • Heater control:
  • TMS:

Post O4a

  • Measurements of the DAC noise: Every Friday from 7/7.
  • 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: Install the geophone pod into the OMC chamber on 7/10.
  • Hight adjustments of Type-A in the cooling: Confirmation of the procedure.
  • Check of the length Oplev: Done except for IY.
  • Noise budget of the suspensions: Finished except for the tower part.
  • Temperature control for the Oplev: Preparing for the heater controller.

Discussion


VIS Meeting

Date: 2023/7/7 10:00-

Participants:

Summary Report

Type-A

  • Test of the IP control with ACCs was postponed in IY.

Type-B

Type-Bp

Type-C

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

Electronics

Control

R&D

Toward O5

Schedule

  • Installation of the geophone pod into the OMC chamber on 7/10.
  • Move the TAMA-SAS tower from the warehouse to the ATC lab in the week of 7/17.

Safety

Discussion

Next meeting

  • 2023/7/21 10:00-

KAGRA/Subgroups/VIS/VISMinutes20230707 (last edited 2023-07-07 13:58:00 by RyutaroTakahashi)