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  * Acoustic injection with FPMI   * Acoustic injection with FPMI [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11128|pdf]]

Weekly PEM meeting

  • 2019/12/17(Tue) 16:00-(JST)
  • Regular meeting meeting (Japanese)

  • Web meeting with Zoom2 (Zoom2)

Agenda

General issue

  • Interferometer status
    • Detection range is about 40kpc at maximum
    • There is still some peaks in the lower frequency
      • Type-A resonant frequency etc...
    • Mostly AS PD noise at higher frequency
      • PRFPMI trial at end of this year
    • Peaks appeared at higher frequency
      • PEM injection to REFL table
    • December 17-24 24h engineering run

      • wiki

      • We couldn't touch the interferometer during this period
  • PEM festival
    • 12/15(Fri) 9:00-15:00 (Done)
      • Vibration injection to PSL, REFL and AS table
      • Vibration to IXC and IYC
    • 12/20(Fri)
      • No PEM work
    • 12/24(Tue)
      • Post engineering run : FFU, cooler, vacuum pump turned off
  • Conference
    • JPS (2010/3/16-19 @ Nagoya)
      • Yokozawa, TTanaka
    • KIW7
  • PEM injection
    • Shaker injection1 (TTanaka, Yokozawa)
      • Where is the PZT shaker driver?

      • Acoustic injection -> Shaker injection

    • Shaker injection2 (Washimi, Camilla)
      • Bluetooth shaker + Chromebook
      • optical table, oplev, ...
    • acoustic injection (TTanaka, Yokozawa)
      • PSL, REFL and AS table injection
      • Analysis is ongoing
    • magnetic field injection (Niigata Tanaka, Fujikawa, Yokozawa)
      • Effect of the air cooler magnetic field
      • AS, REFL table injection
  • Newtonian noise measurement
    • Thank you for Virgo PEM member!
    • Francesca mainly measured the newtonian noise
  • PEM measurement
    • Sunday morning : PEM injection
    • Someday : Effect of the sound to DARM displacement
    • Someday : Environmental check around BS (including the POP)
    • Someday : Evaluation of the table cover
    • Someday : SR2 and SR3 optical lever (Reflection light from SRM?)
  • Visitors from LV
    • Camilla (-12/20)

Each progress

  • Yokozawa
    • Todo list toward joining O3
    • Current serious noises
  • Washimi
    • Lockloss study
    • Shaker injection to PSL room (with Camilla)
  • Kozakai
    • Trigger analysis with silent run
  • TTanaka(ICRR)

    • Acoustic injection with FPMI pdf

  • Fujikawa
  • TTanaka(Niigata)
    • Magnetic field from air cooler and compressor
    • Magnetic field injection to AS and REFL table
  • etc

KAGRA/Subgroups/PEM/Meeting/191217/Agenda (last edited 2019-12-17 18:37:27 by taiki.tanaka)