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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  * General issue 
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  * 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		   * Chrome Book project(->Washimi report)
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   * USB accelerometer ([[attachment:20190628_summary.pdf|Center area]]), microphone, ...    * USB accelerometer, microphone, magnetometer...
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  * 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		    * PCal Rx PD noise budget : [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10397|result]]
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   * Interferometer configuration ?    * Interferometer configuration MICH
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 * each member progress
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    * We started the investigation around the EX0 rack today.
    * With Pcal noise investigation		    * Coherent analysis with PEMs
   * Xend PCal Rx module noise hunting!
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   * 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		    * Plan for cryochamber characterization
   * Sound reverberation analysis : no update
   * Kaminari monitoring : learning now...
   * Others and plan toward the JPS meeting : no update
   * Google chrome [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Portable|wiki page]], [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10385|USB magnetometer]]
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    * Debugging now
    * Current a few days failed?
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    * 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
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    * Web page ready, pick up information by the k1script ready, remaining issue is making the epics channel and caput
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    * Speaker will be arrived tomorrow
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    * Check with the coherent and non-coherent component
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    * JGW Doc
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  * Kaihotsu
   * Report about the KIW6
    * Questions
    * They will join to KAGRA PEM once of the every week (Friday?)		   * Kaihotsu, Mori
   * Weekly PEM measurements

Weekly PEM meeting

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

  • Web meeting with Zoom2 (Zoom2)

=== Agenda ===

  • General issue

    • Chrome Book project(->Washimi report)

      • Portable PEM researcher
      • Spectral analyzer, sound recording, ...
      • USB accelerometer, microphone, magnetometer...

      • Data sharing GoogleDrive

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

      • PCal Rx PD noise budget : result

    • 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 MICH
    • 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???)
    • Task list toward the O3

      • task sheet

      • Please send e-mail to me if you have comments.
    • Yokozawa
      • Power supply issue
      • Coherent analysis with PEMs
      • Xend PCal Rx module noise hunting!
    • Washimi　
      • Plan for cryochamber characterization
      • Sound reverberation analysis : no update
      • Kaminari monitoring : learning now...
      • Others and plan toward the JPS meeting : no update

      • Google chrome wiki page, USB magnetometer

    • Kozakai
      • Trigger event identification
      • 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

    • Oshino
      • Weather station issue
    • TTanaka
      • Preparing for the PEM injection
      • Microphone calibration
      • Thesis agenda and plan toward the JPS meeting
    • Okutomi
      • Shaker injection
    • Kaihotsu, Mori
      • Weekly PEM measurements
    • 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)