• KAGRA
• Subgroups
• PEM
• Meeting
• 191119
• Agenda

Weekly PEM meeting

• 2019/11/18(Tue) 16:00-(JST)
• Regular meeting meeting (Japanese)

• Web meeting with Zoom2 (Zoom2)

Agenda

• General issue
  • Meeting time

    • 17:00-18:00 -> 16:00-18:00

      • Increase the discussion item
      • Conflict with CRY meeting(?)
  • Interferometer status
• PTEP paper
  • [kagra 03133] KAGRA Overview papers
    • Overview of KAGRA : (3) Detchar, calibration, physical environment, data quality
  • Chrome Book project PEM?
• Conference

  • F2F meeting (4th and 5th Dec., 2019 @ RESCEU) http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/Meeting/f2f/2019Dec

    • Washimi (PEM status)
    • Miyo (doctoral thesis)
    • TTanaka (master thesis)
  • JPS (2010/3/16-19 @ Nagoya)
    • registration : -12/3 14:00
• PEM injection
  • Shaker injection1 (TTanaka, Yokozawa)
  • acoustic injection (TTanaka, Yokozawa)
  • magnetic field injection (Niigata Tanaka, Fujikawa, Yokozawa)
• Weekly PEM measurement
  • Friday (+every morning) is weekly PEM measurement
  • Understanding the effect of the instruments, search the origin of noise, and so on
  • Tentative : 18V DC noise(24Hz), Cryochamber vibration, Air compressors, FFU, Cooler, Noise search
• Database for the KAGRA characteristic lines

  • url

  • Fixed bugs
• Visitors from LV
  • Anamaria from Livingston : 18 - 29 Nov.
  • Federico, Irene, Camilla (input optics) + Francesca from Virgo : 11/26-12/7 (2 weeks@KAGRA, 1 weeks@NAOJ)

    • LVK PEM meeting (11/26) 16:00-18:00

  • Fujikawa, TNTanaka 11/24-12/10
• Each progress
  • Yokozawa
    • Current serious noises
      • MICH control noise
      • ACC ground loop problem
      • New accelerometers for noise search
      • Lock state vs EXC magnetometer
    • Daily summary page
  • Washimi

    • Slow monitor page https://www.icrr.u-tokyo.ac.jp/~washimi/KAGRA/PEM/SEM/

    • Coherence study between FPMI & PEMs (on-going)

    • Polish-up of Acuostic reverberation time (on-going)
  • Kozakai
    • Trigger analysis with silent run
  • TTanaka(ICRR)
    • Acoustic injection with FPMI (+ Washimi, Yamada, TNTanaka)
  • Mori
    • Vacuum pump vibration
  • Fujikawa

    • Lock loss study PEMmtg_191119lock.pdf

    • fujimopy
    • Line amplitude web page
  • TTanaka(Niigata)
    • Preparation of the coil
    • IXC compressor study
  • etc