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==== Next PEM meeting ====
 * Practice of Fujikawa-san presentation after regular PEM meeting
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   * Fujikawa-san is staying in Kamioka now
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      * AC power lines : Coherence analysis is done ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14848]], Washimi])       * AC power lines : Coherence analysis is done ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14848]], Washimi)
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  * Acoustic injection paper (Washimi) '''<<Analysis Almost DONE>>'''   * Acoustic injection paper (Washimi) '''<<WRITING>>'''
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  * Clean up the experimental area
   * Material control
   * Clean cabling
    * Most PEMs were recovered.
    * Buy new PEMs
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  * New PEMs
   * ACO microphone and power supply
    * New plastic box
 
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==== Analysis report ====
 ==== Progress report ====
  * Yokozawa
   * Investigation of 116Hz in acoustic injection
   * Bode plot of the Seismometer BLRMS [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14957|klog14957]]
 
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   * Progress of the acoustic injection analysis [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11877|JGW-G2011877]]    * Aacoustic injection paper [[https://www.overleaf.com/project/5f51878b1e41b00001893ac7|overleaf]]
     * LIGO PEM paper is written ongoing [[https://dcc.ligo.org/LIGO-P2000343|LIGO-P2000343]] <- We can list it in our reference.
   * Water fluid monitor [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11949|JGW-T2011949]]
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  * Progress of the ICA analysis   * Kume
   * ICA analysis -> suspended until JPS

Weekly PEM meeting

Agenda

Next PEM meeting

  • Practice of Fujikawa-san presentation after regular PEM meeting

Conference issue

  • JPS meeting

    • Online meeting web

    • Yokozawa will present about the PEM activity
  • KIW7
    • The 7th KAGRA International Workshop (National Central U., Taiwan), Dec. 18-20, 2020 (F2F meeting on Dec. 17-18)
    • Yokozawa is supported by C2C program
    • If you have interested in, please contact to Yokozawa

General issue

  • Interferometer status
    • RSE lock trial
      • New suspension damping (modal damping)
      • The spectrum of the error signal of the ALS DARM was improved in higher frequency region
      • - 25th Sep.
    • Occasional day
      • 26th- Sep.
    • Preparation for O4 work
  • Working style (COVID-19 related)
    • Situation is unclear, I will explain in this meeting.
    • Limitting the mine work
    • Some collaborator came to Kamioka. Please contact to Yokozawa if you plan to go to Kamioka.
      • Fujikawa-san is staying in Kamioka now
  • Useful management tools
    • Easy communication : Slack
      • We want to start using the slack by communication. I will send the message to candidate

    • Task management : GitHub

    • Software management : GitHub

    • Papers : Overleaf

    • Street view : Holobuilder

Jurnal paper issue

Details are here!

  • PTEP (2) : noise budget(K.Yamamoto) Check list, slack <<Analysis ON GOING>>

    • Environmental part
      • Acoustic noise : on going (PEM injection analysis, Washimi)
      • Seismic noise : summarise the actual seismic nois during O3GK? (who?)
      • OMC leg vibration : 12th - 16th Sep. ?

      • AC power lines : Coherence analysis is done (http://klog.icrr.u-tokyo.ac.jp/osl/?r=14848, Washimi)

      • Magnetic noise : skipped in this paper?

      • Newtonian : seismic newtonian -> from PTEP1 (or Francisca?) / water fluid newtonian -> skipped / air density -> skipped

    • Line noise investigation

  • PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) <<Referee comments>>

  • Acoustic injection paper (Washimi) <<WRITING>>

  • ICA for E-run/O3GK (Kume, Yokoyama) <<Analysis ON GOING>>

  • Portable PEMs (Yokozawa+) <<Start investigation>>

Preparation for O4

  • PEM tasks for O4 will be discussed after this meeting with SEO
    • GND issue
    • Cabling issue
  • Temperature control
  • for O4 preparation

    • GND issue

      • We found new ground in the center area
      • We started the rack design with AEL people

    • cabling (github204)

    • ondotori (github205)

    • water fluid (github207)

      • Discussion with Furuta-san & a company is started

    • read out of the lightning sensor (github182)

    • Infrasound monitor @ Atotsu, Mozumi, (+ Toyama?)
    • RF monitor
    • tiltmeter
    • RI detector

      • Rn : contact person -> Guillaume Pronostさん (ICRR, SK)

      • cosmic-ray : plastic scintillator?
      • gamma/neutron : 新学術地下宇宙
      • start from a geiger counter?
    • gravity gradient (Newtonian noise)
      • Superconducting Gravimeter
      • TOBA
  • PEM injection for O4
    • Large speaker @ End station
    • Magnetic injection by large coil

Progress report

  • Yokozawa
    • Investigation of 116Hz in acoustic injection

    • Bode plot of the Seismometer BLRMS klog14957

  • Washimi
  • Fujikawa
    • Lock loss study
  • Kume

    • ICA analysis -> suspended until JPS

  • Omicron and hveto study(Someone)

Place for memo

KAGRA/Subgroups/PEM/Meeting/200904/Agenda (last edited 2020-09-04 15:57:37 by TakaakiYokozawa)