A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.027808384088091  7.85975442435678  -0.0  -0.0  # for region 1
  7.820972741341861  7.5365737325657935  -0.0  -0.0  # for region 2
  7.252174723789726  7.084120764058413  -0.0  -0.0  # for region 3
  6.954848487342018  6.786794527610706  -0.0  -0.0  # for region 4
  6.657522250894312  6.5153227465062775  -0.0  -0.0  # for region 5
  6.5153227465062775  6.411904925133162  -0.0  -0.0  # for region 6
  5.196745523999055  5.015764336596103  -0.0  -0.0  # for region 7
  3.554987609700846  3.4257153329844514  -0.0  -0.0  # for region 8