A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.583033157248333  7.536665362288154  -0.0  -0.0  # for region 1
  7.409074509875489  7.353789457865284  -0.0  -0.0  # for region 2
  5.473944729500455  5.451663420271917  -0.0  -0.0  # for region 3
  5.001466475863501  4.970170052742782  -0.0  -0.0  # for region 4
  4.603660790277781  4.572390047254905  -0.0  -0.0  # for region 5
