Weekly PEM meeting

• 2023/01/20(Fri) 17:00-
• Regular meeting

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

General announcement

• KAGRA visiting plan
  • Now, the budget of KAGRA is limiting, but if you want to visit Kamioka, please contact to Yokozawa
• SEO budget
  • For maintenance, observation and toward O5

Meeting and Conference issue

• JPS meeting (Online)
  • Registration : Finished
    • Washimi(Schumann resonance)
    • Fulunaga(Schumann resonance)
    • Miyamoto(Weather)
• 2nd SPB workshop

  • url

  • Yokozawa will present the KAGRA status
• LVK meeting

  • url

• GR23 in Beijin, China

• Other meetings url

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

Business travel

• Depending on the situation of COVID-19
• To Kamioka
  • Hoshino, Sato(1/15-18)
• From Kamioka

General issue

• Site work
  • 1/30 - 2/3 Repair the leak at OMC area
  • PLL with new laser
• FPMI lock
  • Lock enable
  • Silent run sometimes performed

    • 2022/12/28 evening - 2023/01/14 morning klog23463

    • Overnight
  • FPMI with DC readout and ISS locked

    • 2023/01/15 6:10:00 - 8:10:00(JST) klog23575

    • 2023/01/19 7:10:00 - 9:10:00(JST) klog23638

• PRFPMI lock trial
  • PRMI lock stable
  • Establish the initial alignment
  • Bottle neck is the noise level of ALS
    • It made difficult to hand over from GR to IR
      • How to brand for hand over
    • Implementation of the PNC(Phase Noise Cancellation) to reduce the 0.4Hz resonant peak
      • In vac optical table and put the steering mirror on it
    • Reducing the air disturbance
• ASC implementation
  • Evaluate offset map
  • Trial of the implementation of the ASC loop

• 出張PEM injection (planning form)

Jurnal paper issue

Details are here!

• ICA for E-run/O3GK (Kume, Kobayashi)

  • https://arxiv.org/abs/2206.05785

• Micro seismic analysis (Hoshino)
  • writing

  • Overleaf

• Acoustic reverberation time paper (Washimi+)
  • Suspend
  • Re-measurement before O4?
• Tonga GIF paper
  • Playground application

Preparation for O4

• Investigation of the PEM injection is just started
  • Preparing the function generator
  • Acoustic injection preparation
  • Magnetic injection
• Portable PEM injectors
• Voltmeter preparation
  • We made the PEM channel
    • K1:PEM-VOLT_{PSL,IMCREFL,REFL,ISS,AS}_TABLE_{GND,FLOAT,DIFF}
    • K1:PEM-VOLT_OMC_CHAMBER_{GND,FLOAT,DIFF}
  • AC power monitoring
    • Bought transreducer
• After O4
  • RF monitor with mokugo
  • Tiltmeter
  • RI detector
  • Newtonian noise
• Discussion with DET members
  • Daily summary page PEM

Progress report

• Oshino
  • Update the daily summary page
• Yuzurihara
  • Pastavi

  • Data Quality Report slide

  • Data quality evaluation
  • Brief report of the silent run
• Suzuki
  • Water simulation
• Hoshino
  • Seismic motion analysis
• Miyamoto
  • Weather analysis
• Kume
  • Report of paper progress
• Fukunaga
  • Schumann resonance
• Kiyota
  • Power line noise investigation
• Nishizawa
  • Water newtonian noise
  • Magnetic field analysis
• Washimi
  • SEM update
  • VK mag
• Yokozawa
  • Interesting topic during silent run

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter