Weekly PEM meeting

• 2023/11/17(Fri) 17:00-
• Regular meeting

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

General announcement

• 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.
• System-B

  • JGWDoc10076

先にお知らせしていますように，KAGRA主データシステムの System-A(kagra-gw-0[12], m31-0[01], など) は，来たる11月30日をもって，停止し撤去されます。それ以降は，System-A のユーザー・ホームディレクトリを含む全てのファイルにアクセスできなくなります。
KAGRAデータは，全てSystem-Bにコピーされれていますが，ユーザーのホームディレクトは，こちら側でコピーしませんので，必要なファイルは，各自でSystem-B，または手元の装置等にコピーしてください。
System-AからSystem-Bにファイルをコピーする方法については，"KAGRA Main Data System Startup Guide"
https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10076
を参照してください。

System-B (kagra-gw-b[12], kmst2-0[12], etc.) は，12月以降も現在と同様に稼働します。

• 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?

• Other meetings url

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

Business travel (except for conferences)

• To Kamioka
  • No plan
• From Kamioka
  • Yokozawa (11/24 Kashiwa)
  • Washimi (12/4-8? Amsteldam)

General issue

• Cooling down
  • EX : Radiation shield cooling down : 87 K
  • EY : Started the cooling down duct shield
    • 273 K
  • IX, IY ongoing : about 85-87 K in IM

    • Temperature change url

    • After starting the cooling down after measuring the Q-value of sapphire fiber
• Interferometer operation
  • PRFPMI DC readout trial : Ongoing (Maybe next week or so)
  • Alignment sensing and control
• New IP control
  • Ongoing
• Strategy for noise hunting

  • klog26848

• 出張PEM injection (planning form)

Jurnal paper issue

Details are here!

• Micro seismic analysis (Hoshino)
  • Submited to Physica Scripta

  • 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

• 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
• Yokozawa
  • PEM injection OMC area

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter