A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.201098073647541  8.072149990728555  -0.0  -0.0  # for region 1
  7.711095358555393  7.543462850760711  -0.0  -0.0  # for region 2
  7.4531991927174195  7.298461493214636  -0.0  -0.0  # for region 3
  7.25977706833894  7.105039368836156  -0.0  -0.0  # for region 4
  4.96450119238098  4.590551751915919  -0.0  -0.0  # for region 5