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 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

Details are here!

• PTEP (2) : noise budget(K.Yamamoto, Kokeyama, Washimi) Check list, slack <<Writing>>

  • NB plot has been finalised
  • PWT is writing the draft for each part

• Acoustic injection paper (Washimi) <<2nd submission>> 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>> arXiv:2103.06516

  • the English modification service has been finished.

• Fractal paper (Alessandro) <<Submitted to Journal>> JGW-P2112438, 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 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
  • Infrasound microphone
• Washimi
  • Water fluid monitor
  • Magnetic field
• Kume
  • ICA analysis related with PEM
• Pil-Jong

  • O3GK DetChar result discussion

• Water simulation

Place for memo