A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.913639461545175  7.69381614316892  -0.0  -0.0  # for region 1
  7.151127325927544  7.104758344707553  -0.0  -0.0  # for region 2
  7.094454126658666  7.049802515113489  -0.0  -0.0  # for region 3
  7.041215666739417  6.974238249421652  -0.0  -0.0  # for region 4
  4.190382006547359  4.039253475163683  -0.0  -0.0  # for region 5
  3.489695179223046  3.3935224774334345  -0.0  -0.0  # for region 6
  1.4563294842426886  1.3326788676560453  -0.0  -0.0  # for region 7