A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.977037057202875  7.921477280316489  -0.0  -0.0  # for region 1
  6.92813581477202  6.869208778680399  -0.0  -0.0  # for region 2
  4.180452303299858  4.087852675155882  -0.0  -0.0  # for region 3
  3.579396535165323  3.493531425431818  -0.0  -0.0  # for region 4
  3.3807282420564295  3.29823039152816  -0.0  -0.0  # for region 5
  2.6702365497517415  2.5911059584287077  -0.0  -0.0  # for region 6
  2.14157685452977  2.0338245599622344  -0.0  -0.0  # for region 7