Weekly PEM meeting

• 2023/09/08(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
    • Deep Clean member
    • Kamiel and Anoop
  • Discussion with Deep Clean member
    • Afternoon 10th Sep.

    • Near the Toyama station (10th Sep. 13:00 - 16:00 url)

• KAGRA visiting plan
  • If you want to visit Kamioka, please contact with Yokozawa

Meeting and Conference issue

• LVK meeting at Toyama
  • 11-14 September 2023
    • Yokozawa will prepare the poster about introduction of the KAGRA PEM
  • 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
  • Sato (8/29 - 9/1)
  • Miyamoto (8/30 - 9/9)
  • Anoop (9/3-10 + LVK)

  • Chou & Yeh (9/10 + LVK + 9/16-23?)

  • Takatani (LVK + 9/10)
• From Kamioka
  • Yokozawa (9/11-15 LVK, 9/16-20 JPS)
  • Washimi (9/11-15 LVK, 9/16-19 JPS)
  • Washimi (10/11-14? Amsteldam)
  • Washimi (10/28 Mitaka)
  • Washimi (10/30 Kanazawa)
  • Washimi (11/2-4 Kashiwa)
  • Washimi (11/6-9? OMU)

General issue

• Cooling down
  • EX : Keep 30 K in IM
  • IX, IY, EY ongoing : about 90 K in IM (2023/09/01)

    • Temperature change url

    • Discussing when we start the cooling down of mirror

      • The resonant frequency changed in IXR (21->23 Hz)

• New high power laser replacement
  • Laser working temperature adjustment
    • Need check more
  • PMC alignment
  • Polarization check
• Interferometer operation
  • PRFPMI lock trial : Ongoing
• New IP control
  • Ongoing
• Q measurement for the 30 K sapphire
  • Continued
• PEM tasks
  • Sato-san's measurement

• 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

• ICRC Proceedings
• 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
• 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
  • Question from media
• Sato
  • Activity this week
  • Sound source analysis
• 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
  • Air pressure at various places
  • Environmental noise at CLIO in a power outage
  • Inspection for the Schumann monitor devices
  • Study for lightning
• Yokozawa
  • Mirror height check

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter