A 1.0 #regions in PPM
# low field   high field  bias        slope
  13.344874103637133  13.256444214998574  -0.0  -0.0  # for region 1
  7.709478473125308  7.637126746057396  -0.0  -0.0  # for region 2
  7.235172706791217  7.01811752558748  -0.0  -0.0  # for region 3
  3.963266827164522  3.874836938525963  -0.0  -0.0  # for region 4
  3.738172565175462  3.6979771612488443  -0.0  -0.0  # for region 5
  2.8619127595751923  2.773482870936633  -0.0  -0.0  # for region 6
  2.588584012874191  2.4840759626649844  -0.0  -0.0  # for region 7