A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.354341418695341  8.266511045832962  0.0  0.0  # for region 1
  7.321288937885455  7.225093767607611  0.0  0.0  # for region 2
  7.212546571484414  7.087074610252444  0.0  0.0  # for region 3
  7.051524221236719  6.928143459358615  0.0  0.0  # for region 4
  3.297821381046948  3.1848966159381753  0.0  0.0  # for region 5
  2.6328199865175064  2.4927096298084734  0.0  0.0  # for region 6
  1.9134474087875446  1.8130698398019685  0.0  0.0  # for region 7
