Differences between revisions 5 and 6
⇤ ← Revision 5 as of 2026-01-15 09:40:24 →
Size: 1308
Editor: RyutaroTakahashi
Comment:
← Revision 6 as of 2026-01-16 11:36:12 → ⇥
Size: 1558
Editor: RyutaroTakahashi
Comment:
Deletions are marked like this. Additions are marked like this.
Line 5: Line 5:
Date: 2026/1/16 10:00- Date: 2026/1/16 10:00-11:15
Line 9: Line 9:
Participants: Participants: Washimi, Aso, Yokozawa, Ushiba, Akutsu, Hirata, Sato, Chen, Takahashi
Line 15: Line 15:
 * Oplev
  * Check the amount of light at the power outage.
Line 21: Line 23:
  * Installation in SRM is scheduled on 3/9-19. A detailed [[attachment:SRMinstllation.pdf|schedule]] is suggested.   * Installation in SRM is scheduled on 3/9-19. A detailed [[attachment:SRMinstllation.pdf|schedule]] is suggested. More breakdown is necessary. The DGS model will be asked of Ikeda-san. Check the oplev with BB and the TM height.
Line 30: Line 32:
  * Sato-san is designing the fishing rod (FR). FRs will be useful for the initial adjustment.   * Sato-san is designing the fishing rod (FR) and considering manufacturing the blade spring.

Contents

  1. VIS Meeting
    1. Topics
      1. Type-A
      2. Type-B/Bp
      3. Type-C
      4. R&D
    2. Discussion
    3. Next meeting

VIS Meeting

Date: 2026/1/16 10:00-11:15

Zoom

Participants: Washimi, Aso, Yokozawa, Ushiba, Akutsu, Hirata, Sato, Chen, Takahashi

Topics

Type-A

  • Height adjustment
    • Warming up started on Dec. 8.
  • Oplev
    • Check the amount of light at the power outage.
  • ACCs for the IP controls.
    • TF measurements of the folded pendulum are planned.

    • Preparing for SRM. There is a space to mount the ACCs.

Type-B/Bp

  • IRM damper for Type-B.

    • Installation in SRM is scheduled on 3/9-19. A detailed schedule is suggested. More breakdown is necessary. The DGS model will be asked of Ikeda-san. Check the oplev with BB and the TM height.

  • Enclosure for the SG card in an independent box.
    • Preparing for the boxes with a 1U rack panel.
  • IP for Type-Bp.
    • Started a design.

Type-C

  • Active isolation table for OMC.

    • The new geophone pod was assembled with the new pre-amp. (photo). A leak test should be performed.

    • Sato-san is designing the fishing rod (FR) and considering manufacturing the blade spring.
  • Small Type-C suspensions with mini-GAS.

R&D

Discussion

  • The modification of the Type-A tower toward O6.
  • Fabian suggested measurements of the frequency dependence of the GAS filter Q.

Next meeting

  • 2026/1/30 10:00-

KAGRA/Subgroups/VIS/VISMinutes20260116 (last edited 2026-01-16 11:36:12 by RyutaroTakahashi)