• KAGRA
• Subgroups
• PEM
• Meeting
• 191217
• Agenda

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)

  • shaker injection into REFL with FPMI pdf

• Fujikawa

  • Lock loss study PEMmtg_191217lock.pdf

  • fujimopy PEMmtg_191217fmpy.pdf

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