Weekly PEM meeting

• 2020/12/11(Fri) 17:30-
• Regular meeting

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

After this meeting

• 12/11 Regular meeting
  • After this meeting, we will have a practice of KIW7 by Fujikawa-san
• 12/18 18:00 - 19:00 VK PEM meeting (After KIW7)
• 12/22 10:00 - 12:00 Water fluid + NN noise meeting(Prelininary)

Agenda

Conference issue

• KIW7
  • The 7th KAGRA International Workshop (National Central U., Taiwan), Dec. 18-20, 2020 (F2F meeting on Dec. 17-18)
  • For students, oral presentation at KIW7 and poster presentation at F2F meeting
  • Presentation

    • Yokozawa (KIW:Plenary session PEM)

    • Washimi (KIW:Acoustic inj+sound reverberation time+NN)

    • Kume (KIW:ICA analysis)

    • Fujikawa (KIW+F2F:Lock loss study for thesis)
• If you have some presentation about PEM related, please contact to me.

General issue

• Interferometer schedule JGW12041

  • VIS upgrade
  • IMM upgrade
  • IYC experience
  • Temperature control
  • AC noise at Xend
  • Please contact us if you will work inside the chamber(take pictures)
• Author list for O3b was opened

  • DCC

• Contribution to PEM for joining the author list
  • KAGRA Environmental study (Including (future) newtonian noise measurement)
  • Noise evaluation using PEMs (Including lock loss study)
  • Setting monitors (Cabling, making monitor, ondotory maintenance)
  • Others

Discussion item

• Start the investigation for measurement of the newtonian noise
  • Requested to publish (at least 1 year) seismometer data summary from many directions
  • Fractal analysis
  • Timeline for Francesca analysis
  • Water fluid issue
  • Simulation
  • TOBA
• We will have a NN meeting in the final week of this December.

Jurnal paper issue

Details are here!

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

  • Results of the environmental noise in the PTEP02 JGWDoc12129

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

• Acoustic injection paper (Washimi) <<2nd DRAFT CIRCULATION>> JGW-P2012122-v1

  • posted to CPC (12/7), circulated on 12/9 [kagra 03888] (No comments yet)

• Seismic NN paper (with Virgo) <<DRAFT CIRCULATION>>

  • Playground data application is necessary

• Fractal paper (with Virgo) <<DRAFT CIRCULATION>>

  • Playground data application is necessary (Yokozawa)

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

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

• Virgo O3 break paper <<PUBLISHED>>

  • https://www.mdpi.com/2075-4434/8/4/82

Preparation for O4

• PEM tasks
  • GND issue
  • Temperature control
  • Cabling issue
  • Cleaning the center area
    • PEM cabling plan
    • New cable rack

  • water fluid (github207)

    • One week measurement at Yend
    • Position dependence

  • read out of the lightning sensor (github182)

    • Discussion with Virgo
  • PEM table
    • k1ctr plan
    • DELL PC
  • Infrasound monitor @ Atotsu, Mozumi, tunnel (+ Toyama?)
    • if accepted

• After O4
  • 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?
  • Newtonian noise
    • Accelerometer for wall
    • Relative temperature monitor
    • Many seismometers
    • Superconducting Gravimeter
    • TOBA

Progress report

• Yokozawa
  • Rack ground GND
• Washimi

  • Water fluid JGW-G2012311

• Kume
  • ICA analysis related with PEM

Place for memo