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== Weekly PEM meeting ==
 * 2019/7/09(Tue) 17:00-(JST)
 * Regular meeting meeting
 * Web meeting with Zoom2 ([[https://zoom.us/j/6676627462|Zoom2]])
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 * General issue

  * KAGRA interferometer status
   * PRC loss was large, birefringence effect?
   * FPMI or SRFPMI or DRFPMI
   * Open the CS area and remove the PRM and SRM?
   * Before that, we want to investigate the scattering effect at CS area

  * Chrome Book project
   * Portable PEM researcher
   * Spectral analyzer, sound recording, ...
   * USB accelerometer ([[attachment:20190628_summary.pdf|Center area]]), microphone, ...
   * Data sharing [[https://drive.google.com/open?id=1zIturCCaSe7mmP0s15TcRzHsvNvomP5k|GoogleDrive]]

  * Weekly PEM measurement
   * Friday is temporal weekly PEM measurement
   * Understanding the effect of the instruments and so on
   * Power supply
   * duct vibration

  * PEM DAQ sampling rate
   * Due to the limited DAQ power, almost all PEMs are taken at 2kHz sampling
   * Only PSL and CS microphone are taken with 16kHz sampling for the noise hunting

  * PEM injection
   * Shaker injection1 (Yikang, Yokozawa)
   * Shaker injection2 (Okutomi, Fabian)
   * acoustic injection (TTanaka)
   * magnetic field injection (Yikang, Yokozawa)
   * RF injection (TTanaka, Washimi)

  * 1st engineering run
   * 1st engineering run : Jun. 8th 12:00-18:00(JST) : Xarm cavity

  * Preparing toward the next engineering run
   * Next engineering run : 13th Jul.
   * Interferometer configuration ?

  * 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 [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/190716/Agenda|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???)

  * Task list toward the O3
   * [[https://docs.google.com/spreadsheets/d/1DSltWg18KrwnfkVJmSm09TkQ82aQ5lHAdaC9uCozGC0/edit#gid=1072504162|task sheet]]
   * Please send e-mail to me if you have comments.		  * General issue
  * Will be appear soon
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    * We started the investigation around the EX0 rack today.
    * With Pcal noise investigation		    * Coherent analysis

Weekly PEM meeting

  • 2019/7/09(Tue) 17:00-(JST)
  • Regular meeting meeting

  • Web meeting with Zoom2 (Zoom2)

=== Agenda ===

  • General issue
    • Will be appear soon
  • each member progress
    • Yokozawa
      • Power supply issue
      • Coherent analysis
    • Washimi　
      • Others and plan toward the JPS meeting
        • Google chrome project
        • Accelerometer and microphone
        • They are very useful, especially potable feature is great.
        • Several spectral with short spectrogram was shown
    • Kozakai
      • Trigger event identification
        • Debugging now
        • Current a few days failed?
      • Yuzu summary page comments
      • Others and plan toward the JPS meeting
    • Miyo
      • Effect the protect shied to the seismometer

      • Long term study of the KAGRA ground motion Link

        • One year trend is now opened consistent with Sekiguchi-san. Time variance check.
        • 0.2Hz source dependence (0.15Hz??)
        • 1.2Hz came from the ikenoyama river, observed during bKAGRA phase1
        • Future issue is written in his github, welcome the comments
        • Future discussion towards the English meeting
    • Oshino
      • Weather station issue
        • Web page ready, pick up information by the k1script ready, remaining issue is making the epics channel and caput
    • TTanaka
      • Preparing for the PEM injection
        • Speaker will be arrived tomorrow
      • Microphone calibration
        • Check with the coherent and non-coherent component
      • Thesis agenda and plan toward the JPS meeting
        • JGW Doc
    • Okutomi
      • Shaker injection
    • Kaihotsu
      • Report about the KIW6
        • Questions
        • They will join to KAGRA PEM once of the every week (Friday?)
    • Yuzurihara
      • Yuzu summary page comments
    • etc
  • github progress

KAGRA/Subgroups/PEM/Meeting/190709/Agenda (last edited 2019-07-10 08:55:02 by tatsuki.washimi)