A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.410033  8.135117  0.0  0.0  # for region 1
  8.134804  7.871813  0.0  0.0  # for region 2
  7.871499  7.466658  0.0  0.0  # for region 3
  7.466344  7.152827  0.0  0.0  # for region 4
  7.152513  6.76807  0.0  0.0  # for region 5
  6.767756  6.690868  0.0  0.0  # for region 6
  6.690554  6.457692  0.0  0.0  # for region 7
  5.466928  5.120458  0.0  0.0  # for region 8
  4.592281  4.23828  0.0  0.0  # for region 9
  4.237966  4.138796  0.0  0.0  # for region 10
  4.138482  3.451192  0.0  0.0  # for region 11
  3.450878  2.46545  0.0  0.0  # for region 12
  2.465136  2.218465  0.0  0.0  # for region 13
  2.218151  1.86666  0.0  0.0  # for region 14
  1.864777  1.471861  0.0  0.0  # for region 15
  1.471547  1.007078  0.0  0.0  # for region 16
  0.952157  0.640209  0.0  0.0  # for region 17
  0.116426  -0.106708  0.0  0.0  # for region 18