A 1.0 #regions in PPM
# low field   high field  bias        slope
  4.35593482246357  4.237391321604838  -0.0  -0.0  # for region 1
  4.237391321604838  4.129624502642355  -0.0  -0.0  # for region 2
  4.103760466091359  4.021857683679872  -0.0  -0.0  # for region 3
  2.489413518033361  2.424753426655871  -0.0  -0.0  # for region 4
  2.2825012256253934  2.213530461489404  -0.0  -0.0  # for region 5
  1.7522884763299762  1.5906382478862515  -0.0  -0.0  # for region 6
  1.3706985683364472  1.0732278152081118  -0.0  -0.0  # for region 7