Attachment 'report_hayama.txt'

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   1 Measurement of the magnetic fields at KAGRA site
   2 
   3 We measured the magnetic field and seismic activities in 21-25 October
   4 Participants: Uchiyama, Miyakawa, Hayama, Ono, Yano
   5 
   6 o Study on the environmental magnetic field at KAGRA site. Getting data which help to deicide the configuration of a coil-magnet actuator which controls a mirror.
   7 
   8 o To obtain transfer function of the magnetic fields outside to inside in order to know influence of Schumann resonance.
   9 
  10 o To see whether our magnetometers are enough sensitive to measure the environmental magnetic field or not. If the data is occupied by internal noise of the magnetometer, we need to have better magnetometer.
  11 
  12 o To get several PEM data (magnetic fields and accelerometer)
  13 
  14 magnetic field:
  15 AC
  16 3 dimensional
  17 DC
  18 3 dimensional
  19 
  20 seismic noise:
  21 3 dimenstional
  22 North-South, East-West, Vertical
  23 
  24 http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/detectorcharacterization/

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