A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.14283695126647  7.894985195511513  -0.0  -0.0  # for region 1
  7.894985195511513  7.707585087501668  -0.0  -0.0  # for region 2
  7.71363025227618  7.538320473815357  -0.0  -0.0  # for region 3
  7.544365638589868  7.356965530580024  -0.0  -0.0  # for region 4
  7.11515893959958  6.945894325913268  -0.0  -0.0  # for region 5
  2.2971626143142228  2.139988330176934  -0.0  -0.0  # for region 6
  2.097672176755356  1.9465430573925782  -0.0  -0.0  # for region 7
  1.3722524038140225  1.1183554832845557  -0.0  -0.0  # for region 8
  0.2775435825140838  0.20770333583841633  -0.0  -0.0  # for region 9