• KAGRA
• Subgroups
• PEM
• Meeting
• 200925
• Minute

Minute of PEM meeting

• Date: 2020/09/25 17:00-18:00(JST)
• Attendance: Yokozawa, Washimi, Ohkawa, Fujikawa, Oshino, Yokoyama, Kume
• Regular meeting

Minutes

• KAGRA schedule JGW12041

  • - 7th Oct. RSE lock trial
  • 5th Oct. - 12th(19th) Oct. Start the cleaning
  • 8th Oct. - 21st Oct. Warming up cryogenic ducts(IX, IY, EY)
  • 14th Oct. blackout (13th, 15th working date for blackout)
  • 19th Oct. - 23rd Oct. Clean work by company
  • 22nd Oct. - 25th Oct. break vacuum
  • 26th Oct. - Open chambers
• Call for discussion
  • Some measurement if we can lock the DRFPMI
    • Acoustic injection with portable PEMs
    • Noise investigation
  • PEM measurement during blackout
    • Prepare the DAQ during blackout
    • Seismometer + magnetometer + Infrasound microphone + GND
  • PEM DAQ racks
    • Use only IX and IY racks
    • Move the position of IX and IY racks
  • New PEMs toward O4
    • Many microphone
      • Not only tables but also booth
    • Position of magnetometer
    • Position of seismometer
    • Additional PEMs to PSL room
      • 120Hz noise
      • glitch study
  • Lock loss study
    • control loop of the ETMX MNR?
  • If you have new idea or discussion item, please write here
• Fujikawa will visit Kamioka from 4th Oct. to 17th Oct.
• ICA analysis
  • PR booth injection analysis

  • Now frequency domain -> move to time domain

• Next PEM meeting 17:00- 2nd Oct.