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 * 2020/09/04(Fri) 16:00-  * 2020/09/11(Fri) 16:00-
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==== Next PEM meeting ====
 * Practice of Fujikawa-san presentation after regular PEM meeting
==== After PEM meeting ====
 * Practice of Fujikawa-san presentation
 * Discussion
about lock loss study
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   * make presentation this weekend (Similar to F2F meeting)
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   * Now ASC control was implemented using TMS X/Y
    * Stable arm alignment
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  * Limitting the mine work

Weekly PEM meeting

Agenda

After PEM meeting

  • Practice of Fujikawa-san presentation
  • Discussion about lock loss study

Conference issue

  • JPS meeting
    • Online meeting web

    • Yokozawa will present about the PEM activity
      • make presentation this weekend (Similar to F2F meeting)
  • 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
      • Now ASC control was implemented using TMS X/Y
        • Stable arm alignment
      • - 25th Sep.
    • Occasional day
      • 26th- Sep.
    • Preparation for O4 work
  • Working style (COVID-19 related)
    • Situation is unclear, I will explain in this meeting.
    • 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/200911/Agenda (last edited 2020-09-11 11:13:24 by tatsuki.washimi)