• KAGRA
• Subgroups
• PEM
• Meeting
• 191210
• Minute

Weekly PEM meeting

• 2019/12/1(Wed) 16:00-(JST)
• Regular meeting meeting (Japanese)

• Web meeting with Zoom2 (Zoom2)

Kamioka : Ohkawa, Washimi, Kozakai, Oshino, TTanaka, TTanaka(Niigata)

Agenda

General issue

• General issue
  • Interferometer status
    • Detection range is about 40kpc at maximum
    • There is still some peaks in the lower frequency
    • Mostly AS PD noise at higher frequency
    • Peaks appeared at higher frequency
    • December 17-24 24h engineering run

      • wiki

  • PEM festival
    • 12/13(Fri) 9:00-17:00
      • Vibration injection to PSL, REFL and AS table
      • Vibration to IXC and IYC
    • 12/20(Fri)
      • No PEM work
    • 12/24(Tue)
      • FFU, cooler, vacuum pump turned off
  • Conference
    • JPS (2010/3/16-19 @ Nagoya)
      • Yokozawa, TTanaka
  • 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
    • 10th Dec. : Xend environmental check
    • 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
    • Adam, Sheila (-12/13)
    • Camilla (-12/20)
• Each progress
  • Yokozawa
    • Short report about newtonian noise measurement(Virgo PEM effort)
    • Short report about jitter noise at PSL room(Camilla effort)
    • Current serious noises
  • Washimi

    • Lockloss study link

    • Volt monitor for the optical table link

    • update of PEM map link

    • Polish-up of Acuostic reverberation time (on-going)
  • Kozakai
    • Trigger analysis with silent run
  • TTanaka(ICRR)
    • Acoustic injection with FPMI
  • Fujikawa

    • Lock loss study FujikawaMTG_191211.pdf

    • fujimopy PEMmtg_191211lock.pdf

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