A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.638304  8.44087  1600000.0  0.0  # for region 1
  8.440242  8.289337  1600000.0  0.0  # for region 2
  8.288708  7.869948  1600000.0  0.0  # for region 3
  4.169641  3.951458  1600000.0  0.0  # for region 4
  3.950829  3.71504  1600000.0  0.0  # for region 5
  3.412602  3.078097  1600000.0  0.0  # for region 6
  2.727244  2.347467  1600000.0  0.0  # for region 7
  1.487311  1.014476  1600000.0  0.0  # for region 8
