== Weekly PEM meeting ==
 * 2021/04/02(Fri) 17:00-
 * Regular meeting
 * Zoom2 : https://zoom.us/j/6676627462

=== Agenda ===

==== Conference issue ====
  
 * 「第七回極低放射能技術」研究会 [[https://www.lowbg.org/ugap/ws/lb2021/index.html|URL]]
  * 落雷磁場を利用した神岡地下水分量の長期観測(鷲見, 3/25)

 * Future conferences
  * GWADW (online), May 17-21, 2021
  * 8th KIW (online), KASI, Daejeon, Korea, July 7-9, 2021
  * GWPAW Hannover, Germany, Dec 14th-17th, 2021

If you have some presentation about PEM related, please contact to me.

==== General issue ====

 * Regular PEM meeting time
  * New physical year started.
  * 17:00 - Fri ??

 * Interferometer schedule 
  * VIS upgrade (ongoing)
   * EYC dirty check
   * IX LVDT ACC installation
   * EX released
   * New Type-A optical lever
  * IOO commissioning 
   * PMC recovery
   * Suspension commissioning and interferometer commissioning
   * Type-C suspension commissioning
    * Oplev recovery, characterization and calibration
   * Noise budget
   * Trial of vibration transfer function

==== Discussion item ====

 * Magnetic field
  * Preliminary results will be reported by Washimi-san
  * First data taking with GERD 3/31, 4/1
  * Various position measurement

 * Infrasound microphone
  * Preliminary results will be reported by Yokozawa
  * Various position measurement

==== Jurnal paper issue ====
[[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Reports/JurnalPaperIssue|Details are here!]]
  * PTEP (2) : noise budget(K.Yamamoto, Kokeyama, Washimi) [[https://docs.google.com/spreadsheets/d/1Lz5RNxdjOhdZp6CBef-USUUPmyNTrhww9a7u39W7PSI/edit?usp=sharing|Check list]], [[https://gokagra.slack.com/archives/C015M111B5G|slack]] '''<<Writing>>'''
     * NB plot has been finalised
     * PWT is writing the draft for each part
  * Acoustic injection paper (Washimi) '''<<2nd submission>>''' [[https://arxiv.org/abs/2012.09294|arXiv:2012.09294]]
    * modified version was submitted (3/5)
    * Some formalities (copy right, etc.) are finished.
    * Now we are waiting the reply from referees.
  * Lightening paper (Washimi) '''<<Opened in arXiv>>''' [[https://arxiv.org/abs/2103.06516|arXiv:2103.06516 ]]
    * the English modification service has been finished.
  * Fractal paper (Alessandro) '''<<Submitted to Journal>>''' [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12438|JGW-P2112438]],  [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/Seminar/210128|seminor slide]]
  * Reverberation time paper (Washimi+) '''<<Start writing>>'''
  * ICA for E-run/O3GK (Kume, Yokoyama) '''<<Analysis ON GOING>>'''
  * Portable PEMs (Yokozawa+) '''<<Start writing>>'''

==== Preparation for O4 ====

  * Global Cabling issue
   * Cleaning the center area
   * Ask company (Candidate SK service)

  * PEM cabling plan
   * BS-IYC cable rack (April)
   * New cable diagram
    * Current version will be reported by Yokozawa
   * IMC PEM rack will be ready
    * IO chassis and electronics -> ready
    * Fiber for data -> ready
    * Timing system -> planned

  * PEM sensors
   * Re-install the ACCs, MICs, MAGs before commissioning start
   * water fluid monitor
   * Magnetometers for Schumann resonance [[https://www.metronix.de/metronixweb/fileadmin/user_upload/Dokumente/Geophysiks/Induction%20Coil%20MFS-06e/FlyerMFS-06e_jap_v35.pdf|MFS-06e]]
    * Connector
    * Position
    * Measurement plan
    * Self noise evaluation

  * Vibration projection
   * Before closing the IMC chambers, IMC vacuum tables
   * Discussion with CAL team about A chamber

  * PEM injection
   * Acoustic injection at X/Y-end
   * Magnetic injection   

 * After O4 
   * RF monitor
   * Tiltmeter
   * RI detector
   * Newtonian noise

 * Discussion with DET members
  * Daily summary page PEM
  * Line identification
   * Yokozawa
   * VIS -> IOO -> MIF

==== Progress report ====
 * Yokozawa
  * Cabling plan[[attachment:PEM_cablings_210326.pdf|pdf]]
  * Infrasound microphone [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12748|JGWDco12748]]
  
 * Washimi
  * Water fluid monitor
  * Magnetic field [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12749|JGW-G2112749]]

 * Kume
   * ICA analysis related with PEM

 * Pil-Jong
  * O3GK DetChar result discussion 

 * Water simulation

==== Place for memo ====