A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.858281924456186  7.756093602941801  -0.0  -0.0  # for region 1
  7.756093602941801  7.664124113578855  -0.0  -0.0  # for region 2
  7.569041923161438  7.349279058410633  -0.0  -0.0  # for region 3
  7.252174536776557  7.185734600921662  -0.0  -0.0  # for region 4
  2.5144960338929288  2.3765053978866093  -0.0  -0.0  # for region 5
  2.2282932332872294  2.1107456544670318  -0.0  -0.0  # for region 6
  1.5690046390348154  1.5127862317729814  -0.0  -0.0  # for region 7
  1.2981341313187071  1.19080808109157  -0.0  -0.0  # for region 8
  0.2698865898712616  0.2149096919345231  -0.0  -0.0  # for region 9