• KAGRA
• Subgroups
• PEM
• Meeting
• 230616
• Agenda

Weekly PEM meeting

• 2023/06/16(Fri) 17:00-
• Regular meeting

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

General announcement

• O4a run started from 24th May
  • 4 weeks run it will finish 21st June 8:00(JST)
• KAGRA visiting plan
  • If you want to visit Kamioka, please contact to Yokozawa
• Kiban S application
  • 高精度レーザーひずみ計観測網の広域展開による地殻活動の時空間マルチスケール観測
  • Yokozawa and Washimi would be co-investigator, about KAGRA environment and strain-mater

Meeting and Conference issue

• ICRC 2023 url

  • Nagoya
  • Yokozawa will present about KAGRA PEM (oral)
  • Washimi will present about Schumann resonance and SGWB
• LVK meeting at Toyama
  • 11-14 September 2023
  • F2F meeting during this meeting(?)
• JPS meeting (Tohoku U)
  • 16-19 September 2023
  • Presentation about PEM
    • Yokozawa (Status)
    • Washimi (Noise hunting)
    • Hoshino (Seismic forecast)

• Other meetings url

If you have some presentation about PEM related, please contact to me.

Business travel

• Depending on the situation of COVID-19
• To Kamioka
  • Hoshino(planned)
• From Kamioka
  • No

General issue

• Status

  • Sensitivity 1.1~1.4 Mpc latest

  • Situation didn't change from last week
  • Depending on the PR3 alignment
  • IPC glitch
    • The rate became smaller after change the process of the detchar script
    • Currently, appeared again
  • Lock loss investigation
    • Ongoing
  • Summary page update for O4a

    • url

• Schedule after O4a
  • CAL/DET week (1 week)
    • Calibration measurement
    • Remaining measurement for O4a
  • Switch to high power laser (1-2 week)
    • Check the sensitivity
  • Turned off and on the cryocooler (1 week)
    • Same timing with switch high power laser
    • IX, IY, EY. Not perform EX
  • Open the OMC chamber (1 week)
    • Treatment the ghost beam
  • Commissioning toward 10 Mpc

• 出張PEM injection (planning form)

Jurnal paper issue

Details are here!

• Micro seismic analysis (Hoshino)
  • Submit to CQG soon

  • Overleaf

• Acoustic reverberation time paper (Washimi+)
  • Suspend
  • Re-measurement before O4?
• Tonga GIF paper
  • Accepted

Preparation for O4

• Check the seismic motion around mozumi area
  • Daytime ground motion
• Schumann resonance measurement
• Start the O4a observation
  • Fixed the PRMs

  • PEM working check klog25527

• Investigation of the PEM injection
  • Magnetic injection
    • After O4a?
• Voltmeter preparation
  • AC power monitor installation
  • DC power monitor installation
• After O4
  • RF monitor with mokugo
  • Tiltmeter
  • RI detector
  • Newtonian noise
• Discussion with DET members
  • Daily summary page PEM

Progress report

• Yuzurihara
  • Pastavi

  • Data Quality Report slide

  • Data quality evaluation
• Hoshino
  • Seismic motion analysis
• Sato
  • Sound source analysid
• Miyamoto
  • Weather analysis
• Takatani
  • Calculation of Schumann resonance
• Kume
  • Noise subtraction
• Nishizawa
  • Water newtonian noise
  • Magnetic field analysis
• Washimi
  • Noise O4a
• Yokozawa
  • PEM check during O4a
  • Lock loss study O4a

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter