A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.520299247664159  8.447030861242434  0.0  0.0  # for region 1
  7.799012688001398  7.70457787883562  0.0  0.0  # for region 2
  7.331723201267286  7.268223933035124  0.0  0.0  # for region 3
  7.268223933035124  7.20635285116789  0.0  0.0  # for region 4
  6.794421700841302  6.691845959850887  0.0  0.0  # for region 5
  4.360283085275094  4.293527444313078  0.0  0.0  # for region 6
