Differences between revisions 3 and 4
⇤ ← Revision 3 as of 2025-04-04 04:48:50 →
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Editor: TakaakiYokozawa
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← Revision 4 as of 2025-04-04 15:54:08 → ⇥
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Editor: tatsuki.washimi
Comment:
Deletions are marked like this. Additions are marked like this.
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 * Bi-month VK PEM meeting  * Bi-weeklky VK PEM meeting
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   * [[https://docs.google.com/document/d/1VbBntL1CvmE1otJ0sUG7Ot_ybvhOCGjMTLXz3I4hcYo/edit?usp=sharing|url]]    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16567|JGW-G2516567]]
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* 4/23,24 : From QUarks to Neutron Stars
 * [[https://indico2.riken.jp/event/5141/page/405-overview|url]]		   * 4/23,24 : From QUarks to Neutron Stars  * [[https://indico2.riken.jp/event/5141/page/405-overview|url]]
   * Yokozawa will have a presentation
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  * 5/19~23 : GWADW2025 @ フロリダ
   * [[https://gwadw.clas.ufl.edu/|url]]

  * 5/25~28 : KIW12 @ 上海
   * [[https://kiw12.casconf.cn/page/1878817789607809024|url]]

  * 5/26~30: ET symposium @ ボローニャ
   * [[https://indico.ego-gw.it/event/819/|url]]		   * 5/19~23 : GWADW2025 @ フロリダ     [[https://gwadw.clas.ufl.edu/|url]]
  * 5/25~28 : KIW12 @ 上海    [[https://kiw12.casconf.cn/page/1878817789607809024|url]]
  * 5/26~30: ET symposium @ ボローニャ    [[https://indico.ego-gw.it/event/819/|url]]
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If you have some presentation about PEM related, please contact to me. If you have some presentations about PEM related, please contact to me.
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  *   * Kaku+ (??)
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  * Washimi (Tokyo 4/11)
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  * Washimi (Sardegna, Middle of June - Middle of July?)
  * Washimi (Yamaguchi -> Hiroshima -> Kohch -> Okayama, 9/8-9/30?)

Weekly PEM meeting

General announcement

  • New fiscal year start
    • If you have idea for new schience and new project, please contact to Yokozawa

  • O4c url

    • Now commissioning break, Re-start 4th June end 7th Oct.
      • Discussion about the engineering run
    • KAGRA will join this with 10 Mpc sensitivity
  • Bi-weeklky VK PEM meeting
    • To discuss the analysis during their measurements
    • Monday 17:00-(JST)
    • First meeting would be 7th Apr.

Meeting and Conference issue

  • TOBA and Gravity Gradient Workshop
  • 4/11 : FS地震学　B02班研究集会 ＠ 地震研
    • Washimi will have a presentation

  • 4/23,24 : From QUarks to Neutron Stars * url

    • Yokozawa will have a presentation
  • 5/9~10 : JGWC研究会 @ JAXA相模原

    • url

    • 発表申込締切：2025年4月7日（月）
    • 参加登録締切：2025年4月21日（月）

  • 5/19~23 : GWADW2025 @ フロリダ url

  • 5/25~28 : KIW12 @ 上海 url

  • 5/26~30: ET symposium @ ボローニャ url

    • 締切：3/31

  • Other meetings url

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

Business travel

  • To Kamioka
    • Kaku+ (??)
  • From Kamioka
    • Washimi (Tokyo 4/11)
    • Yokozawa (Tokyo 4/22-24)
    • Yokozawa (JAXA 5/9-10??)
    • Yokozawa (Kashiwa 5/14-16??)
    • Washimi (Sardegna, Middle of June - Middle of July?)

    • Washimi (Yamaguchi -> Hiroshima -> Kohch -> Okayama, 9/8-9/30?)

Jurnal paper issue

Details are here!

  • Non-linear ICA paper
    • Now we discussed about the playground
  • Schumann Resonance paper
    • Long term observation, seasonal variance
    • Amplified inside the mine
    • Others
  • O4 PEM paper
    • Start to investigate the topics
  • Microseism with machine learning
  • 1 Hz seismic motion paper
    • Start the investigation

General issue

  • Commissioning
    • PRFPMI

      • Latest sensitivity url

      • IFI treatment
        • Found the loosed screw in STM2
        • Clear improvement 128 Hz, 220 Hz
      • Added the de-whitening filter to Type-A GAS filter
        • Disappeared the peaks around 20 Hz
      • Reducing the RMS of the DARM error
        • For the weaker coil driver
        • Installed the switching circuit
      • Damping the peaks around 40 Hz
      • PEM injection test
        • Washimi-san will report it
    • Cooler status
      • One cryocooler for duct shield was several trouble
      • We carefully checked it
    • Noise budget

  • 出張PEM injection (planning form)

Preparation for O4b

  • Coil preparation for magnetic injection
    • Done
  • Voltmeter preparation
    • AC power monitor installation
    • DC power monitor installation

Progress report

  • Ohashi
    • Microseismic noise with machine learning
  • Kaku
    • Magnetic field
  • Murofushi
    • Earthquake and GIF noise
  • Ozaki
    • Nearby earthquake
  • Obara
    • Earthquake and suspension
  • Kume, Ueno
    • Noise subtraction
  • Nishizawa
    • Water newtonian noise
    • Magnetic field analysis
  • Washimi
    • PEM injection
  • Yokozawa
    • Noise hunting

Place for memo

KAGRA/Subgroups/PEM/Meeting/250404/Agenda (last edited 2025-04-04 15:56:22 by tatsuki.washimi)