A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.215507243452228  8.021786815417984  -0.0  -0.0  # for region 1
  5.8116128410273  5.635503360996169  -0.0  -0.0  # for region 2
  5.611219514726251  5.491416913369136  -0.0  -0.0  # for region 3
  3.468703225339713  3.3516867309909038  -0.0  -0.0  # for region 4
  2.0164535463564417  1.8227331183221984  -0.0  -0.0  # for region 5
  1.6378181642895118  1.505736054266164  -0.0  -0.0  # for region 6
  1.179933516208573  1.0038240361774426  -0.0  -0.0  # for region 7
