A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.040735611759732  7.911463335043337  -0.0  -0.0  # for region 1
  7.006557398028576  6.864357893640543  -0.0  -0.0  # for region 2
  3.968658895193308  3.8652410738201928  -0.0  -0.0  # for region 3
  3.46449701599937  3.3352247392829755  -0.0  -0.0  # for region 4
  2.740572266387561  2.5983727619995274  -0.0  -0.0  # for region 5