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   * Compared with TAMA data, phase delayed at high frequencies.

Agenda/Minutes of the VIS Meeting on 2016/10/14

2016/10/14 13:30 -

Participants:

Progress report

Schedule Chart (PDF,MPP)

Type-A (Takahashi)

  • Minutes of Type-A Meeting

  • Pre-isolator: The sensitivity measurement of ACC is on going at the site.
  • EQ stop, release sensor, dummy payload: Production is on going.
  • Bottom Filter: Assembly of the second BF was finished. SUS bearings were delivered.
  • BF damper: The bidding was announced on 14th. Open bidding is on 9th November.
  • Maraging wire: We asked Obuchi-san redesign of the wire for Type-A with safety margin of 2.
  • Installation: Review on the installation procedure will be held on 4th November.

Type B (Mark)

  • Put a report here

Type-Bp (Shoda)

  • Put a report here

IMMT (Ohishi)

  • 2D/3D drawings
    • Uploaded slightly simplified step and dwg files to Dropbox (Subsystems/VIS/TypeC/).
    • Please notice there still remain some small mistakes.
  • Transfer function of Pitch-Pitch and Yaw-Yaw of IMMT suspension as iKAGRA ETMs

    • Fitting was done by Kasuya-san, Hisatomi-san, and Shimoi-san.

    • Kasuya-san kindly wrote How to use LISO in Japanese.

    • Compared with TAMA data, phase delayed at high frequencies.

Watchdog system (Tanaka)

  • Put a report here

Safety

  • Any issue ?

Discussion

  • Maraging and SUS rod issue follow up.
    • Order status: Type-B Maraging rods, SUS rods
    • Type-A Maraging rod re-optimization status (Takahashi)
      • Nail head diameter 9mm (possible ?)

Site work plan for the next week

  • Mon: BS test hanging
  • Tue: BS test hanging
  • Wed: BS test hanging
  • Thu: BS test hanging
  • Fri: BS test hanging

Travel Plans

  • Travel (Week of 10/17):
    • Takahashi:
    • Shoda:
    • Mark: 17-21
    • Fabian: 17-21
    • Okutomi:
    • Fujii:
    • Ishizaki:
    • Hirata:
    • Sato:
    • Ohishi:
  • Travel (Week of 10/24):
    • Takahashi:
    • Shoda:
    • Mark: 24-27 (BS)
    • Fabian: 24-27 (BS)
    • Okutomi: 24-27 (PI realtime model development)
    • Fujii:
    • Ishizaki:
    • Hirata:
    • Sato:
    • Ohishi:

Next meeting

2016/10/21(Fri) 13:30 - VIS F2F: Oct. 28, Nov. 18, Dec. 2

KAGRA/Subgroups/VIS/VISMinutes20161014 (last edited 2016-10-14 16:27:15 by YoichiAso)