A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.671907953910969  7.564466396645751  -0.0  -0.0  # for region 1
  6.672991853931645  6.530704386202032  -0.0  -0.0  # for region 2
  6.402936047832584  6.298398316439399  -0.0  -0.0  # for region 3
  6.298398316439399  6.164822326325885  -0.0  -0.0  # for region 4
  6.03995781382847  5.932516256563251  -0.0  -0.0  # for region 5
  5.720536967904849  5.615999236511663  -0.0  -0.0  # for region 6
