Weekly PEM meeting

• 2023/06/30(Fri) 17:00-
• Regular meeting

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

General announcement

• Open the registration LVK meeting@Toyama
  • 2023/09/11-15
  • Including the F2F meeting

  • url

  • Welcome the visitor
• O4a run finished successfully
  • 4 weeks run has been finished on 21st June 8:00(JST)
  • CAL/DET week now
  • Noise budget measurement
• 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)
  • 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(planned)
• From Kamioka
  • No

General issue

• Status

  • Sensitivity 1.1~1.4 Mpc latest

  • Summary url

  • CAL/DET week
    • Calibration measurement done : No significant change from previous measurement
  • Noise budget measurement
    • Interferometer (MICH, PRCL, ISS, CARM, ...)
    • Suspensions
    • PEMs
    • etc.
    • Some measurement results

      • Dark noise and shot noise klog25787

      • DARM sensitive noises klog25784

      • Acoustic injection JGWDoc15061

  • IPC glitch
    • Mostly solved
    • NIC latency for myrinet was 10us on k1dc0, I set as 1us.

    • klog25698

    • 1 event/day(?)
  • Lock loss investigation
    • Ongoing
• Schedule after O4a
  • CAL/DET week (1 week)
    • Done
  • Switch to high power laser (1 week)
    • 7/4-7/9
    • Check the sensitivity
    • Several additional measurements (option)
  • Open the OMC chamber (1 week)
    • 7/10 -16
    • Set the geophone inside the chamber and evaluate the vibration
    • Treatment the ghost beam
  • Turned off and on the cryocooler (1 week)
    • This weekend (6/30-?)
    • There are some cooling trouble at EY
      • Turned off ION pump, TMP
    • Same timing with switch high power laser
    • IX, IY, EY. Not perform EX
  • 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
  • Lock loss study O4a

  • Summary of acoustic injection test post O4a JGWDoc15061

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter