• KAGRA
• Subgroups
• PEM
• Meeting
• 230714
• Agenda

Weekly PEM meeting

• 2023/07/14(Fri) 17:00-
• Regular meeting

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

General announcement

• [Important] Submission of the O4 pledge
  • Please read the e-mail and process
  • Deadline 21st Jul.
• Open the registration LVK meeting@Toyama
  • 2023/09/11-15
  • Including the F2F meeting

  • url

  • Welcome the visitor
• KAGRA visiting plan
  • If you want to visit Kamioka, please contact to Yokozawa

Meeting and Conference issue

• ICRC 2023 url 7/26 - 8/3

  • Nagoya

  • Yokozawa will present about KAGRA PEM (oral) proceedings

  • Washimi will present about Schumann resonance and SGWB (oral)
• LVK meeting at Toyama
  • 11-14 September 2023
  • KAGRA F2F meeting on Sep. 15
• 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 (except for conferences)

• To Kamioka
  • Hoshino(8/8 - 10)
• From Kamioka
  • Yokozawa (Nagoya, 7/25 - 8/4)

General issue

• Noise budget measurement
  • Interferometer (MICH, PRCL, ISS, CARM, Frequency, Dark)
  • Suspensions
  • PEMs
  • Peak identification
  • Komori-san summarizing the noise budget
  • etc.
  • Mirror Q measurement.
    • Lower than previous measurement
  • Lock loss investigation
    • Ongoing
  • New high power laser replacement
    • Replacing itself was performed, but the laser power was instable
    • Gave up the replacement and backed to the original one
• Schedule after O4a
  • Open the OMC chamber (1 week)
    • 7/10 - 16
    • Geophone setting : Done
    • Ghost beam dumping : Done
    • Dark PD noise evaluation : Done
    • Closing the chamber : Done
    • Pumping down : Ongoing
    • DARM noise check : Next week
    • Leak test : Next week
  • Turned off and on the cryocooler (1 week)
    • Turned off (6/30)
      • Turned on the TMP and temperature adjustment
    • Turned on again (7/19)
  • Commissioning toward 10 Mpc

• 出張PEM injection (planning form)

Jurnal paper issue

Details are here!

• Micro seismic analysis (Hoshino)
  • Submited to CQG

  • Overleaf

  • http://arxiv.org/abs/2306.12437

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

Preparation for O4b

• Check the seismic motion around mozumi area
  • Daytime ground motion
  • It may appeared in DARM sensitivity (SR3?)
• Schumann resonance measurement
  • Ongoing
• Acoustic injection post O4a
  • Reported later
• 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
  • Applying the deepclean
  • Calculation of Schumann resonance
• Kume

  • PR3 line injection klog25670

  • Noise subtraction
• Nishizawa
  • Water newtonian noise
  • Magnetic field analysis
• Washimi

  • Schumann resonance study JGW-G2315046

• Yokozawa
  • OMC work

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter