A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.882998494176654  7.525882790581402  -0.0  -0.0  # for region 1
  7.102634549283327  6.957142966337114  -0.0  -0.0  # for region 2
  6.824877890931465  6.719065830606946  -0.0  -0.0  # for region 3
  6.692612815525816  6.533894725039039  -0.0  -0.0  # for region 4
  5.594812689658934  5.396415076550461  -0.0  -0.0  # for region 5
  3.62406306611477  3.4388919605468624  -0.0  -0.0  # for region 6