Differences between revisions 10 and 11
⇤ ← Revision 10 as of 2022-09-02 14:14:07 →
Size: 2534
Editor: RyutaroTakahashi
Comment:
← Revision 11 as of 2022-09-02 14:14:27 → ⇥
Size: 2534
Editor: RyutaroTakahashi
Comment:
Deletions are marked like this. Additions are marked like this.
Line 52: Line 52:
 * It is planned to shift the OMMT2 suspension to Y+ by ~10cm for the mode matching.  * It is planned to shift the OMMT2 suspension to Y+ by ~20cm for the mode matching.

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: 2022/9/2 13:00-13:10

Participants: Takahashi, Sato, Ikeda, Hirata, Node, Akutsu, Aso

Post O3 Upgrade portal

Schedule

  • Type-A: Offload of the F2/BF GAS in IY. Sensor correction.
  • Type-B: Adjustment of the EQ stoppers in SRs. Cable check for the IM picomotor in BS. Taking pictures with the 360 camera. Setting of the dial gauges.
  • Type-Bp:
  • Type-C:

Status

  • Replacement of cables: EXT and EX remain.
  • TM height setting:
  • Oplev: Check of the oplev beam path in SR2/SRM/BS.
  • ACC:
  • Commissioning in air:
  • Commissioning in vacuum:

  • Acceptance check: DropboxPaper

  • New vacuum pumps:
  • Heater control: Pending.
  • TMS:

Discussion

VIS Meeting

Date: 2022/9/2 14:00-14:15

Participants: Takahashi, Fabian, Aso, Washimi

Summary Report

Type-A

  • Offloaded the F2/BF GAS in IY.

Type-B

  • In BS, the IM picomotor cable was checked because pin 8 has a connection to ground. It was determined that the problem was deep within the chamber, and we cannot fix it from outside. The yaw picomotor should still be functional because such a pin is connected to ground at the driver.
  • In SR suspensions, we withdrew security stop screws to allow larger motion of the whole suspension in the longitudinal direction by approximately 5 mm. Clearly, we didn't move the stop screws around the F1 filters.
  • We installed dial gauges in all four Type-B chambers underneath the mushroom heads. The aim is to monitor the motion of the chamber when pump down happens.
  • Yokozawa-san took pictures of the inside of the chambers with the 360 degrees (4pi sr) camera.

Type-Bp

Type-C

  • It is planned to shift the OMMT2 suspension to Y+ by ~20cm for the mode matching.

Electronics

Control

Schedule

  • Type-A:
  • Type-B: Monitor of the evacuation.
  • Type-Bp: Monitor of the evacuation.
  • Type-C:

Safety

Discussion

Travel Plans

(Date in Kamioka)

The week from 9/5

  • Takahashi: 9/6-9
  • Sato:
  • Hirata: 9/5-9/9

The week from 9/12

  • Takahashi:
  • Sato:
  • Hirata:

Next meeting

  • 2022/9/9(FRI)

KAGRA/Subgroups/VIS/VISMinutes20220902 (last edited 2022-09-02 14:14:27 by RyutaroTakahashi)