A 1.0 #regions in PPM
# low field   high field  bias        slope
  4.777084498047557  4.57308088959001  -0.0  -0.0  # for region 1
  3.731566004702629  3.531812471421281  -0.0  -0.0  # for region 2
  2.8262999921722645  2.732798338295889  -0.0  -0.0  # for region 3
  1.683029769774762  1.564027664841193  -0.0  -0.0  # for region 4
  1.5385272137839996  1.3472738308550494  -0.0  -0.0  # for region 5