• KAGRA
• Subgroups
• PEM
• Meeting
• 191029
• Minute

Minute of PEM meeting

• Date: 2019/10/29 16:00-17:00(JST)
• Attend：Yokozawa, TTanaka, Washimi, Kozakai, Oshino, TTanaka, Ohkawa, kokeyama, mori, kaihotsu,Fujikawa

Agenda

• General issue
  • Interferometer status
    • We tried to lock the FPMI now, there is a problem in the hand-off from the green to IR main laser
    • Several morning runs were held (Ex: 17th October).

    • See the detail in url

    • Silent run -> Some excitation(including calibration line) -> PEM injection -> Hardware injection

• PTEP paper
  • [kagra 03133]
  • KAGRA Overview papers
  • Overview of KAGRA : (3) Detchar, calibration, physical environment, data quality
• Next F2F meeting
  • RESCEU
  • 4th and 5th Dec., 2019
  • 1slot Washimi-san will have a talk
  • If you plan to write master/doctor thesis, please let me know
• Chrome Book project (Portable PEM researcher)

  • http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Portable

  • We prepared two PEM Chromebook
  • Start writing paper (PTEP?)
  • There are many project to collaborate with the instruments

    • IOO, vibration, sound and magnetometer measurements inside the PSL room klog10173

    • ALS, the green fiber noise
    • LAS, ISS noise hunting
    • MIF, FPMI displacement

    • VIS, Around the OpLev

    • Wide 44Hz noise -> Vacuum pump?

    • BS
• PEM injection
  • Shaker injection1 (TTanaka, Yokozawa)
  • Shaker injection2 (Okutomi, Fabian)
  • acoustic injection (TTanaka, Yokozawa)
  • magnetic field injection (Niigata Tanaka, Fujikawa, Yokozawa)
  • RF injection (TTanaka, Washimi)
• Weekly PEM measurement
  • Friday is weekly PEM measurement
  • Understanding the effect of the instruments, search the origin of noise, and so on
  • Tentative : New vacuum pump, 18V DC noise(24Hz), Cryochamber vibration(46Hz)
• Database for the KAGRA characteristic lines

  • url

• Visitors from LV
  • Anamaria from Livingston : 18 - 29 Nov.
  • Federico, Irene, Camilla (input optics) + Francesca from Virgo : 11/18-12/7 (2 weeks@KAGRA, 1 weeks@NAOJ)
• Each progress
  • Yokozawa
    • Current serious noises
      • 18V DC noises
      • Coherent with ITMX MN YAW
      • Coherence with ITMY TM PIT
    • Daily summary page
  • Washimi
    • Place the temporal accelerometers to the IXC.
    • We will check the cryocooler at Thursday
    • 24Hz noise search
      • Checked the instruments around the IXV area
      • Time variation at the 4+10n (24,44,...)
    • Help the Fujikawa analysis
  • Sugimoto　
    • Virgo visiting report
  • Kozakai
    • Trigger analysis with silent run
    • GWPAWでデータ解析メンバーと議論、イベントセパレーション

    • NoEmi -> Check channel list

  • TTanaka(ICRR)
    • Preparing for the PEM injection
      • make shell script for automated injection
    • Master thesis
      • Upload to JGWDoc every week
      • Welcome the comments
  • Mori, Kaihotsu
    • Cryochamber vibration
      • Yamada-san is interested in the line peak at 10-200Hz
      • Common line pick ups
  • Fujikawa, Mori
    • fujimopy
    • Line amplitude web page
      • public html and ICRR account tomorrow
  • Fujikawa, Washimi

    • Lock loss study PEMmtg_191029fuji.pdf

      • with IO guardian, compare the lock loss and no lock loss data

      • python base analysis -> root base analysis

      • Make histogram for PEMs which are placed in IMC area
      • We can find the earthquake lock loss by histogram analysis
      • Easy to find the GPS time
  • TTanaka(Niigata)
    • Preparation of the coil
    • 24Hz noise situation
  • Yamamoto

    • Auto Bruco klog10203

  • etc
• github progress

  •