A 1.0 #regions in PPM
# low field   high field  bias        slope
  6.842949440982649  6.670087477752251  0.0  0.0  # for region 1
  6.145540830708285  5.996521896888976  0.0  0.0  # for region 2
  5.710405543955904  5.579268882194913  0.0  0.0  # for region 3
  5.430249948375604  5.042800720445402  0.0  0.0  # for region 4
  3.1055545807943905  2.5690864190448797  0.0  0.0  # for region 5
