A 1.0 #regions in PPM
# low field   high field  bias        slope
  4.190423439110472  4.122492226334047  -0.0  -0.0  # for region 1
  3.8187997456864986  3.7268928107536876  -0.0  -0.0  # for region 2
  3.475147728111641  3.369920947536394  -0.0  -0.0  # for region 3
  3.1554714326931688  3.074220374274307  -0.0  -0.0  # for region 4
  2.7851797238334384  2.714584541928526  -0.0  -0.0  # for region 5
  2.605361807660548  2.549418455962315  -0.0  -0.0  # for region 6
  2.4495196136440427  2.3989042002027845  -0.0  -0.0  # for region 7