• KAGRA
• Subgroups
• PEM
• Meeting
• 240621
• Agenda

Weekly PEM meeting

• 2024/06/21(Fri) 17:00-
• Regular meeting

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

General announcement

• Several young researcher workshop around F2F
• Virgo ENV member have some plan to visit KAGRA about 1 month
  • One month around Dec.
  • They are also thinking about visiting LIGO
  • KAGRA would still be commissioning phase
  • Plan
    • Noise hunting (PEM injection)
    • Magnetic injection
    • Additional NN measurement
    • Other
• O4a noise budget paper
  • If you have a plan to write the paper using O4a data and PEM, please let me know.

Meeting and Conference issue

• KAGRA F2F meeting
  • TCU 21st Aug. - 23rd Aug.

  • Registration url (Deadline 17th Jul.)

• 2024 Annual Meeting of the Physical Society of Japan
  • Yokozawa (Seismic noise according to the blasting)
  • Washimi (OMC repairment)
  • Ohashi(TCU) (Seis with ML)

• Other meetings url

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

Business travel

• To Kamioka
  • Aogaku (6/23-6/27)
• From Kamioka
  • No

General issue

• Interferometer recovery
  • Closing the vacuum chamber at center area
    • Done, except of the OMC area
  • EYA work
    • Pumping down ongoing, open the GV next Monday
  • OMC vibration
    • OMC stack repairment : done
    • Optical alignment : ongoing
    • Closing early July
  • Commissioning
    • MICH 1f/3f lock : Done
      • Calibration, noise budget, characterization
    • PRX lock : Done
      • OLG is different from last measurement
    • Future
      • PRC continued

      • Yarm commissioning -> ALS CARM/DARM

• 出張PEM injection (planning form)

Jurnal paper issue

Details are here!

• Micro seismic analysis (Hoshino)
  • Submit to PTEP (2nd submission)

  • Overleaf

  • http://arxiv.org/abs/2306.12437

• Acoustic reverberation time paper (Washimi+, Sato?)
  • Suspend
  • Re-measurement before O4?

Preparation for O4b

• PEM installation
  • Waiting the timing of TMSX and TMSY
• Evaluation of newtonian noise
  • Anoop and Washimi
• Investigation of the PEM injection
  • Magnetic injection
• Voltmeter preparation
  • AC power monitor installation
  • DC power monitor installation

Progress report

• Yuzurihara
  • Pastavi

  • Data Quality Report slide

  • Data quality evaluation
• Sato
  • Sound source analysis
• Kume

  • PR3 line injection klog25670

  • Noise subtraction
• Nishizawa
  • Water newtonian noise
  • Magnetic field analysis
• Washimi
  • OMC vibration test
• Yokozawa
  • Additional Shindo monitor with raspberry pi

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter