A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.705168440961006  7.5824583927970615  -0.0  -0.0  # for region 1
  7.403506239224643  7.285909109734196  -0.0  -0.0  # for region 2
  7.250118679019712  7.178537817590745  -0.0  -0.0  # for region 3
  4.6323043181889  4.489142595330964  -0.0  -0.0  # for region 4
  3.7477693876738005  3.676188526244833  -0.0  -0.0  # for region 5
  3.4409942672639398  3.256929195018023  -0.0  -0.0  # for region 6
  3.1239933095070835  2.9910574239961436  -0.0  -0.0  # for region 7
  2.75586316501525  2.587136848789827  -0.0  -0.0  # for region 8