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   * Long term study of the KAGRA ground motion    * Long term study of the KAGRA ground motion, [[https://github.com/MiyoKouseki/kagra-gif/issues/89|Link]]

Minute of PEM meeting

  • Date: 2019/5/28 17:00-18:00(JST)
  • Attendance: Yokozawa, Kozakai, Mori, TTanaka, Kaihotsu, Somiya, Okawa, Fujikawa

=== Agenda ===

  • General issue
    • Installation of the 1st PEM toward the O3 was (almost) completed!!
      • Center area, X end, Y end, weather station
      • Remaining : Magnetometer!!!
      • 2nd PEM installation will be started after the characterization of the chambers. (After O3??)
      • Washimi PEM webpage URL

      • PEM map provided by the medm was updated.
    • The power supply status measurements will be (re-)start soon
      • With the discussion with the Facility
    • Task list toward the O3
      • task sheet

      • Please send e-mail to me if you have comments.
    • Engineering run
      • 1st engineering run : Jun. 8th 12:00-18:00(JST) : Xarm cavity
      • What should we do toward the next engineering run
    • KIW6
      • Washimi-san and Kaihotsu-san presented
      • Currently, I heard that PEM activity is great! This is good news.
    • English meeting
      • We will have a monthly English meeting(Mainly share the information with Virgo people)
      • The third Tuesday of every month 17:00-(JST) 10:00-(CEST)
      • 2nd meeting will be held at 16th Jul.(Tue) 17:00-18:00 URL

    • Seismon issue
      • We already installed to KAGRA system
      • Need the tuning for the KAGRA
      • Large earthquake happened this month, we "should" be a safe mode before coming large earthquake (PEM issue???)
    • Yuzu summary page was upgraded!
      • There will be a report in the each member progress
    • One student (Yikang) will come to KAGRA and work with PEM group
      • Last his visiting was cryo issue
      • Magnetometer and shaker injection (?)
  • each member progress
    • Yokozawa
      • Coherent analysis during the engineering run
      • Bruco analysis
      • Origin of the vibration
    • Washimi 
      • KIW6 report
        • Status talk
        • Importance of the PEM injection
        • Suspect of the magnetic field requirement -> 勾配のほうだった

        • 静電圧が木になるかも。ポンプなどの鉄カスなどが影響するかもしれない、caltechのabbottさんなど
      • New accelerometer
        • USB output accelerometer was arrived at KAGRA
        • Check the signal soon
      • plan for cryochamber characterization
        • Summary to the paper at August
        • Scheduling
      • Thunderbolt issue
        • Thunderbolt generated the magnetic field and observed by the magnetometer
        • No monitor tool in the weather station
    • Kozakai
      • Trigger rate analysis during engineering run
      • Collaboration with Yuzu summary page
    • Miyo
      • Effect the protect shied to the seismometer
      • Long term study of the KAGRA ground motion, Link

    • Oshino
      • Weather station issue
    • TTanaka(may not attend this meeting)
      • Preparing for the PEM injection pdf

      • Microphone calibration
    • Okutomi
      • Shaker injection
    • Kaihotsu
      • Report about the KIW6
    • Yuzurihara
      • Yuzu summary page
    • etc
  • github progress

KAGRA/Subgroups/PEM/Meeting/190625/Minute (last edited 2019-06-26 12:38:02 by tatsuki.washimi)