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== Virgo-KAGRA PEM meeting  ==
 * 2020/01/14(The) 17:00-18:00(JST) 9:00-10:00(CEST)
 * Zoom2 : https://zoom.us/j/6676627462		 == Weekly PEM meeting ==
 * 2020/01/28(Tue) 16:00-(JST)
 * Regular meeting meeting (Japanese)
 * Web meeting with Zoom2 ([[https://zoom.us/j/6676627462|Zoom2]])
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=== Agenda ===
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 * KAGRA PEM reports
   * KAGRA detector status & Update of the KAGRA PEM from last meeting (Yokozawa)
   * Sound revelation time
   * others		 === Agenda ===
 
==== General issue ====
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 * Each progress  * Interferometer status
  * Finally, we can lock the PRFPMI
   * Transmittance laser power became 100 times higher than FPMI
   * Lock duration is about 30min at maximum
  * OMC commissioning is also ongoing
  * ~100Hz noise and line noise of the higher frequency -> PEM

 * New PEMs
  * We bought the ACO power supply, microphone and accelerometers(end of Feb.)
  * Basically the portable PEMs

 * PEM plan
  * PEM injection
    * Shaker injection (TTanaka, Yokozawa)
    * Acoustic injection (TTanaka, Yokozawa)
      * PSL, REFL and AS table injection (Defence of TT Thesis -> tomorrow)
   * magnetic field injection (Niigata TTanaka, Fujikawa, Yokozawa)
     * Effect of the air cooler magnetic field
     * AS, REFL table injection
     * He is writing the thesis
  * Hammering test
     * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/200121/Minute|20/01/21 Minute]]
     * Hammering test @ Y-end : around 2/15 ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11419|JGW-G2011419]])
  * Long term PEM evaluation
  * Turning off the instruments
  * Many microphone in the PSL room

 * Conference
  * [[https://sites.google.com/view/ugapw2020/home|地下宇宙若手研究会]]@茂住 (2020/2/22-24)
  * JPS (2020/3/16-19 @ Nagoya)
    * Yokozawa, TTanaka
  * F2F (2020/4/17-20 @ Kashiwa) [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/Meeting/f2f/2020Apr|wiki]]
  * GWADW (2020/5/11-16 @ Hokkaido)
  * KIW7 (2020/5/29-31 @ NCU, Taiwan)
 

==== Each progress ====

 * Yokozawa
  * Planning toward the O3 run
  * IX. IY microphone
  * Instrument switch off

 * Washimi
  * Noise around 100Hz @ ER3 [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12629|klog12629]]
  * Portable PEM with DataLogger [[https://github.com/gw-pem/kagra-pem/issues/201|GutHub201]]
  * PEM chassis [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11425|JGW-T2011425]]

 * Kozakai
  * Coupling with calibration line @ ER3 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11426|slides]]

 * TTanaka(ICRR)
  * shaker injection with FPMI
  * Master thesis [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10387|JGW-G1910387]]

 * Fujikawa
  * Lock loss study

 * TTanaka(Niigata)
  * Magnetic field from air cooler and compressor
  * Magnetic field injection to AS and REFL table

 * etc

Weekly PEM meeting

  • 2020/01/28(Tue) 16:00-(JST)
  • Regular meeting meeting (Japanese)

  • Web meeting with Zoom2 (Zoom2)

Agenda

General issue

  • Interferometer status
    • Finally, we can lock the PRFPMI
      • Transmittance laser power became 100 times higher than FPMI
      • Lock duration is about 30min at maximum
    • OMC commissioning is also ongoing

    • ~100Hz noise and line noise of the higher frequency -> PEM

  • New PEMs
    • We bought the ACO power supply, microphone and accelerometers(end of Feb.)
    • Basically the portable PEMs
  • PEM plan
    • PEM injection
      • Shaker injection (TTanaka, Yokozawa)
      • Acoustic injection (TTanaka, Yokozawa)

        • PSL, REFL and AS table injection (Defence of TT Thesis -> tomorrow)

      • magnetic field injection (Niigata TTanaka, Fujikawa, Yokozawa)
        • Effect of the air cooler magnetic field
        • AS, REFL table injection
        • He is writing the thesis
    • Hammering test
    • Long term PEM evaluation
    • Turning off the instruments
    • Many microphone in the PSL room
  • Conference

    • 地下宇宙若手研究会@茂住 (2020/2/22-24)

    • JPS (2020/3/16-19 @ Nagoya)
      • Yokozawa, TTanaka

    • F2F (2020/4/17-20 @ Kashiwa) wiki

    • GWADW (2020/5/11-16 @ Hokkaido)
    • KIW7 (2020/5/29-31 @ NCU, Taiwan)

Each progress

  • Yokozawa
    • Planning toward the O3 run
    • IX. IY microphone
    • Instrument switch off
  • Washimi
  • Kozakai

    • Coupling with calibration line @ ER3 slides

  • TTanaka(ICRR)
  • Fujikawa
    • Lock loss study
  • TTanaka(Niigata)
    • Magnetic field from air cooler and compressor
    • Magnetic field injection to AS and REFL table
  • etc

KAGRA/Subgroups/PEM/Meeting/200128/Agenda (last edited 2020-01-28 13:59:39 by chihiro.kozakai)