• KAGRA
• Subgroups
• PEM
• Meeting
• 200731
• Agenda

Weekly PEM meeting

• 2020/07/31(Fri) 16:10-
• Regular meeting

• Zoom2 : https://zoom.us/j/6676627462

Agenda

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

General issue

• Interferometer status
  • RSE lock trial
    • PRFPMI lock recovery trial
    • New suspension damping (modal damping)
    • - 11th Sep.
  • Occasional day
    • 12th - 16th 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.
• 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)
  • Start investigation (?)

• PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) <<Submitted to CPC>>

• Acoustic injection paper (Washimi) <<Analysis ON GOING>>

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

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

Preparation for O4

• Clean up the experimental area
  • Material control
  • Clean cabling
    • All PEMs will be recovered.
    • We already started the PEM recovery(回収)
    • Buy new PEMs
  • PEM tasks for O4 will be discussed after this meeting with SEO
    • GND issue
    • Cabling issue
• 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

Analysis report

• Washimi
  • Progress of the acoustic injection analysis
• Fujikawa
  • Lock loss study
• Progress of the ICA analysis
• Omicron and hveto study(Someone)

Place for memo