A 1.0 #regions in PPM
# low field   high field  bias        slope
  2.7111994421628323  2.6949598528117518  -0.0  -0.0  # for region 1
  2.681968181330888  2.661668694642038  -0.0  -0.0  # for region 2
  2.5479915691844766  2.5349998977036123  -0.0  -0.0  # for region 3
  2.519572287820086  2.505768636871668  -0.0  -0.0  # for region 4
  0.007545435843968354  -0.00829997942836519  -0.0  -0.0  # for region 5
