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 * 2023/10/20(Fri) 17:00-  * 2023/10/27(Fri) 17:00-
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 * O4a noise budget paper
  * If you have a plan to write the paper using O4a data and PEM, please let me know.
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   * EX : Radiation shield cooling down : 183 K    * EX : Radiation shield cooling down : 140 K
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   * IX, IY, EY ongoing : about 85-87 K in IM (2023/10/13)    * EY : Started the maintenance
    * Last weekend, need maintenance

* IX, IY ongoing : about 85-87 K in IM (2023/10/27)
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   * OMC bread/board damper
   * Replaced one OMC DC PD
   * Treatment the cabling inside the OMC chamber
   * Installed the gophone on the optical table
   * Took picures
   * Started pumping down today
   * Started pumping down
   * Some leak at OMC area
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  * Lock loss due to earthquake   * PEM injection OMC area

Weekly PEM meeting

General announcement

  • O4b
    • Break : mid-January - mid-March, 2024
    • Virgo : will join in March
    • KAGRA : Three month observation around here
  • O4a noise budget paper
    • If you have a plan to write the paper using O4a data and PEM, please let me know.
  • KAGRA visiting plan
    • If you want to visit Kamioka, please contact Yokozawa

Meeting and Conference issue

  • ET SCB/SPB/ANM workshop @ Nikhef, December 6-7
    • Washimi will attend in person
    • satellite meeting before/after the workshop?
  • Gravitational Wave Probes of Physics Beyond Standard Model
    • Osaka Metropolitan University
    • 6-9 November 2023 url

    • Registration deadline 9th Oct.
  • Other meetings url

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

Business travel (except for conferences)

  • To Kamioka
    • Miyamoto (10/4 - 11/3)
  • From Kamioka
    • Washimi (10/27-28 Mitaka)
    • Washimi (10/30 Kanazawa)
    • Washimi (11/2-4 Kashiwa)
    • Washimi (11/4-5 Waseda)
    • Washimi (11/6-9? OMU)
    • Washimi (12/4-8? Amsteldam)

General issue

  • Cooling down
    • EX : Radiation shield cooling down : 140 K
    • EY : Started the maintenance
      • Last weekend, need maintenance
    • IX, IY ongoing : about 85-87 K in IM (2023/10/27)
      • Temperature change url

      • After starting the cooling down after measuring the Q-value of sapphire fiber
  • Interferometer operation
    • PRFPMI lock trial : Ongoing
    • Alignment sensing and control
    • Resonant frequency damping
    • MN oplev control to reduce the sensor noise
    • OMC lock stable
  • Preparation towards opening the OMC chamber
    • Started pumping down
    • Some leak at OMC area
  • New IP control
    • Ongoing
  • Strategy for noise hunting

Jurnal paper issue

Details are here!

  • Micro seismic analysis (Hoshino)
  • ICRC Proceedings
  • Acoustic reverberation time paper (Washimi+, Sato?)
    • Suspend
    • Re-measurement before O4?
  • TCam paper
    • Writing ongoing

Preparation for O4b

  • Schumann resonance measurement
    • Setting the magnetometer : Done
    • Prepare for winter season : Ongoing
    • Data taking : Started
  • Evaluation of newtonian noise
    • Anoop and Washimi
  • PEM installation
    • Start planning
  • 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
  • Hoshino
    • Seismic motion analysis
  • Sato
    • Sound source analysis
  • Miyamoto
    • Weather analysis
  • Takatani
    • Noise subtraction with machine learning
  • Kume
    • PR3 line injection klog25670

    • Noise subtraction
  • Nishizawa
    • Water newtonian noise
    • Magnetic field analysis
  • Washimi
    • Magnetic field analysis
  • Yokozawa
    • PEM injection OMC area

Place for memo

KAGRA/Subgroups/PEM/Meeting/231027/Agenda (last edited 2023-10-26 12:50:35 by TakaakiYokozawa)