• KAGRA
• Subgroups
• PEM
• Meeting
• 190528
• Minute

Minute of PEM meeting

• Date: 2019/5/28 17:00-18:00(JST)
• Attendance: Yokozawa, Oshino, Miyo, TTanaka, Washimi, Kozakai, Yokozawa, Fujikawa, Mori, Kaihotsu, Yuzurihara, Yamat, Okutomi, Kokeyama

=== Agenda ===

• General issue
  • Task list toward the O3

    • mail

    • Please send e-mail to me if you have comments.
  • KIW6

    • Wohan, China URL

    • Washimi, Kaihotsu
    • Review/practice of the presentation at 18th. Jun 16:00- or 18:00-
  • TAUP2019

    • Toyama, Japan URL

    • Yokozawa, Miyo, (?)
    • Abstract deadline May 31st.
  • JPS meeting
    • Washimi
    • TTanaka
  • PEM maintenance
    • PEM List in Google spread sheet

    • PEM MAP webpage http://k1sum0/~controls/PEMmap/

    • Hardware part was completed, call for volunteer for check of the software part
    • SDF
  • PSL PEMs issue
    • We found one accelerometer(Kistler peri exit) temporary removed from the periscope.
    • We will return this week and ready for the engineer run(8th Jun.)
    • Also, we will place two portable accelerometer somewhere (near the main laser and rack??)
  • PEM injection(start the discussion)
    • Management of the sound injection (Large/Small speaker and placement, DAC, monitored PEM, ...)
    • Coil
    • Shaker
    • etc.
    • PEM injection flagを作る。(T田中)
  • English meeting
    • We will have a monthly English meeting(Mainly share the information with Virgo people)
    • First meeting will be held at 18th Jun.(Tue) 17:00-18:00
  • 2nd Expand PEM meeting

    • preliminary agenda wiki

• each member progress
  • Washimi　

    • PEM with Virgo : http://klog.icrr.u-tokyo.ac.jp/osl/?r=8991

      • Echo ringdownの解析をしている。
      • GWADWで似たような発表をしている方がいた。
      • 周波数のcutoffはなさそう、decayの周波数依存性はそんなになさそう。
      • Facilityの空気の揺らぎとかが地下環境ではどうなのかを見るのが良い。
    • X-end : Tomorrow I and Yokozawa-san will install
      • Accelerometers for P-cal (Tx, Rx)
      • Microphones for EXA and EXT booth
    • LIGO風PEM mapを作成した。 すごい
    • Summary pageの充実
    • Power supply
  • Kozakai
    • 神岡で使えるようにした。
  • Okutomi
    • Shaker injection
  • Miyo
    • Brief report of the GWADW
      • PEMはニュートニアン関連
    • Future ground motion ealuation, especially around cryostat.
  • TTanaka
    • PEM with Virgo
    • Microphone calibration
  • Kaihotsu, Mori
    • Additional measurements
    • 排水、バキュームポンプ周り(20Hz?)
  • Yuzurihara

    • 新しいweb serverを立ち上げた。[[http://157.82.231.170/dailysummary/html/index.html

]]

• etc

• github progress