A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.86555311065037  7.783119366259275  -0.0  -0.0  # for region 1
  7.185474719423831  7.096171496333477  -0.0  -0.0  # for region 2
  7.096171496333477  6.972520879746834  -0.0  -0.0  # for region 3
  4.259076793539938  4.169773570449585  -0.0  -0.0  # for region 4
  4.162904091750327  3.9774281668703617  -0.0  -0.0  # for region 5
  3.5446510088171097  3.4141309135312086  -0.0  -0.0  # for region 6
  2.761530437101702  2.7065746075076382  -0.0  -0.0  # for region 7
  2.3012753642514183  2.2257110985595805  -0.0  -0.0  # for region 8