A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.759063169172468  7.627553623932257  -0.0  -0.0  # for region 1
  7.627553623932257  7.507479691321629  -0.0  -0.0  # for region 2
  7.461737240803295  7.261614019785582  -0.0  -0.0  # for region 3
  7.2273071818968315  7.072926411397453  -0.0  -0.0  # for region 4
  5.334713291700746  5.254664003293661  -0.0  -0.0  # for region 5
  2.590166260600684  2.3786074269533874  -0.0  -0.0  # for region 6
  2.3271471701202615  2.1213061427877564  -0.0  -0.0  # for region 7