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 * 2023/12/01(Fri) 17:00-  * 2023/12/22(Fri) 17:00-
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 * 2023年も大変お世話になりました。
  * PEM subsystemは今年もたくさんの結果を残すことができました。ありがとうございます。
  * 2024年もよろしくお願いします。
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  * VK PEM meeting   * VK PEM meeting (Postponed)
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    * January next year.
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   * 一般講演申込(※早期参加登録/概要集申込、原稿送信含む) 11月21日(9時)〜12月6日(14時)    * 一般講演申込(※早期参加登録/概要集申込、原稿送信含む)
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    * Sato? (Sound)
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    * Takatani? (Noise subtraction)     * Sato (Sound)
* Takatani (Noise subtraction)
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  * Miyamoto(- 12/8)   * Hoshino (February?)
  * Sato (Febryary?)
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  * 12/2-10 Washimi (Nikhef@Amsteldam)
  * 12/13-15 YokozaWashimi (F2F@Hongo)
  * No plan
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   * EX : Radiation shield cooling down : 87 K    * IX,EX,EY : Radiation shield cooling down : 84-88 K
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    * 273 K     * 200 K
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   * IX, IY ongoing : about 85-87 K in IM
 
* Temperature change [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/trendMon/finesse.html|url]]
    * After starting the cooling down after measuring the Q-value of sapphire fiber
   * Temperature change [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/trendMon/finesse.html|url]]
   * After starting the cooling down after measuring the Q-value of sapphire fiber
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   * PRFPMI DC readout Succeeded :
   * Several Alignment sensing and control
   * Reducing the RMS of DARM (Deducing the fluctuation of suspension)
   * Treatment for large micro-seismic
   * PRFPMI DC readout Succeeded
    * Need to reuducing the DARM RMS to be stable operation
     * Resonant frequency measurement
     * Wideband ASC
     * Treatment for large micro-seismic

   * Initial alignment procedure
    * Touch the alignment of GRX and GRY
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   * Mirror Q value measurement at IX    * Mirror Q value measurement at IX, EX, EY
    * Current summary : [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15445|JGWDoc15445]]

Weekly PEM meeting

General announcement

  • 2023年も大変お世話になりました。
    • PEM subsystemは今年もたくさんの結果を残すことができました。ありがとうございます。
    • 2024年もよろしくお願いします。
  • Kamioka visiting plan
    • Yokozawa and Washimi-san have several budgets (共同利用)
    • So we want to call not only PEM members but also KAGRA members who are interested in onsite.
    • If you want to visit Kamioka, please contact Yokozawa
  • 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.

Meeting and Conference issue

  • VK PEM meeting (Postponed)
    • 2023/12/21(Thu) 19:00-(JST), 10:00-(UTC), 11:00- (CET)
    • January next year.
  • ET SCB/SPB/ANM workshop @ Nikhef, December 6-7
    • Washimi will attend in person
    • satellite meeting before/after the workshop?
      • discussing with poland group
  • KAGRA F2F @ Hongo, 12/14-15
  • JPS (online) 2024/3/18-21
  • Other meetings url

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

Business travel (except for conferences)

  • To Kamioka
    • Hoshino (February?)
    • Sato (Febryary?)
  • From Kamioka
    • No plan

General issue

  • Cooling down
    • IX,EX,EY : Radiation shield cooling down : 84-88 K
    • EY : Started the cooling down duct shield
      • 200 K
    • Temperature change url

    • After starting the cooling down after measuring the Q-value of sapphire fiber
  • Interferometer operation
    • PRFPMI DC readout Succeeded
      • Need to reuducing the DARM RMS to be stable operation
        • Resonant frequency measurement
        • Wideband ASC
        • Treatment for large micro-seismic
    • Initial alignment procedure
      • Touch the alignment of GRX and GRY
  • Q value measurement
    • Mirror Q value measurement at IX, EX, EY
    • Suspension (violin) Q value measurement
  • New IP control
    • Ongoing
  • Strategy for noise hunting

Jurnal paper issue

Details are here!

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

Preparation for O4b

  • PEM maintenance
    • Checked the response for CS PEMs
    • Status of IX and IY PEMs
    • Prepared the TMSX and TMSY ACC and MIC
  • PEM installation
    • Start planning
  • 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
  • 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
    • Barometer
  • Yokozawa
    • About OMC area

Place for memo

KAGRA/Subgroups/PEM/Meeting/231222/Agenda (last edited 2023-12-22 17:07:42 by tatsuki.washimi)