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Editor: TakaakiYokozawa
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Editor: TakaakiYokozawa
Comment:
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 * 2023/07/21(Fri) 17:00-  * 2023/08/04(Fri) 17:00-
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 * 来週のPEM meetingはお休みにします。

 * [Important] Submission of the O4 pledge
  * Please read the e-mail and process
  * Deadline 21st Jul.
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  * Yokozawa (Nagoya, 7/25 - 8/4)   * No
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  * Sorry, I could not follow all thing at current two weeks
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  * Open the OMC chamber again
   * Because the large leak detected in geophone, we opened the chamber and removed the geophone, then closed the chamber again.
   * Still there seems leak; next leak test Wednesday		   * Increase the laser amp (current laser)
   * ~15 W at PMC
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  * Turned on the cooling system
   * Scheduling now		   * Interferometer operation with high power
   * Ongoing
  
  * Leak at OMC / Yarm
   * OMC leak stopped after removing the geophone
   * Y arm (and Yend) leak

  * Trouble at OMC DCPD
   * Repair at October?

  * Start the cooling down
   * X : 22 K
   * Other : 200 K

  * Optical table alignment
   * POP table

  * PEM tasks
   * Cabling
   * Acoustic noise at OMC
   * AC power check at Yend
    * SUM value of the MNV oplev decreased
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  * ICRC Proceedings
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 * Acoustic injection post O4a
  * Reported later
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  * Tapping test OMC   *

Weekly PEM meeting

General announcement

  • Open the registration LVK meeting@Toyama
    • 2023/09/11-15
    • Including the F2F meeting

    • url

    • Welcome the visitor
  • KAGRA visiting plan
    • If you want to visit Kamioka, please contact to Yokozawa

Meeting and Conference issue

  • ICRC 2023 url 7/26 - 8/3

    • Nagoya

    • Yokozawa will present about KAGRA PEM (oral) proceedings

    • Washimi will present about Schumann resonance and SGWB (oral)
  • LVK meeting at Toyama
    • 11-14 September 2023
    • 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
    • Hoshino(8/8 - 10)
  • From Kamioka
    • No

General issue

  • Sorry, I could not follow all thing at current two weeks
  • New high power laser replacement
    • Some temperature oscillation when operating the new HPL
  • Increase the laser amp (current laser)
    • ~15 W at PMC
  • Interferometer operation with high power
    • Ongoing
  • Leak at OMC / Yarm
    • OMC leak stopped after removing the geophone
    • Y arm (and Yend) leak
  • Trouble at OMC DCPD
    • Repair at October?
  • Start the cooling down
    • X : 22 K
    • Other : 200 K
  • Optical table alignment
    • POP table
  • PEM tasks
    • Cabling
    • Acoustic noise at OMC
    • AC power check at Yend
      • SUM value of the MNV oplev decreased
  • Commissioning toward 10 Mpc

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

  • 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
  • Sato
    • Sound source analysid
  • 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
  • Yokozawa

Place for memo

KAGRA/Subgroups/PEM/Meeting/230804/Agenda (last edited 2023-08-04 08:55:58 by TakaakiYokozawa)