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 * 7.5 Hz double peak problem ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12473|klog#12473]])  * 7.5 Hz double peak problem ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12473|klog#12473]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12516|klog#12516]])

Agenda/Minutes of the VIS Meeting on 2020/1/17

2020/1/17 14:00 -

Zoom Meeting

Participants:

VIS Commissioning Task List

Post-O3 task list

Schedule afetr O3

Procurement list in 2019FY

Progress report

Type-A

Past week report

  • Photo-sensor decoupling (klog#12528)

    • Decoupling: almost done
      • The original geometrical sensing matrix was completely useless.
    • Todos: Loop gain tuning
    • Nakano-san and Yamada-kun contributed a lot to it.
  • 7.5 Hz double peak problem (klog#12473, klog#12516)

    • Only ETMY has double peaks around 7.5 Hz in TM pitch.
    • It's not critical to the PRFPMI commissioning so far, but looks annoying as reported by Nakano-san.
  • GAS control status: No saturation at present

Plan for coming weeks

Type B

Past week report

Plan for coming weeks

Type-Bp

Past week report

Plan for coming weeks

OMMT & OSTM

Past week report

  • Installed the OSTM suspension into the OMC chamber.

Plan for coming weeks

VIS electronics

Past week report

Plan for coming weeks

Other site works

Safety

  • Incidents:

Discussion

Travel Plans

  • Travel (Week of 1/20):
    • Takahashi:
    • Sato: -21
    • Hirata:
    • Shoda:
    • Fujii:
    • Tanaka:
  • Travel (Week of 1/27):
    • Takahashi:
    • Sato:
    • Hirata:
    • Shoda:
    • Fujii:
    • Tanaka:

Next meeting

On 2020/1/24(Fri)

KAGRA/Subgroups/VIS/VISMinutes20200117 (last edited 2020-01-17 15:32:09 by RyutaroTakahashi)