A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.723160808763772  8.611188763466203  0.0  0.0  # for region 1
  8.17219533570893  8.107861210600138  0.0  0.0  # for region 2
  8.068343400758463  7.972089665781835  0.0  0.0  # for region 3
  7.710208509130174  7.580396122992594  0.0  0.0  # for region 4
  3.0471448411603683  2.956132867179815  0.0  0.0  # for region 5
  1.7932700429554145  1.6964268942032472  0.0  0.0  # for region 6
  0.9299865022672649  0.8180961099426347  0.0  0.0  # for region 7
