A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.160940694718462  7.954856333740723  -0.0  -0.0  # for region 1
  7.913639461545175  7.776249887560017  -0.0  -0.0  # for region 2
  7.226691591619379  7.02060723064164  -0.0  -0.0  # for region 3
  4.396466367525098  4.190382006547359  -0.0  -0.0  # for region 4
  3.5996068384111735  3.4072614348319505  -0.0  -0.0  # for region 5
  3.4072614348319505  3.1874381164556955  -0.0  -0.0  # for region 6