A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.079517044664993  7.8209724992357135  -0.0  -0.0  # for region 1
  7.0065571811334815  6.7609398629756665  -0.0  -0.0  # for region 2
  3.9428043177965164  3.787677590538949  -0.0  -0.0  # for region 3
  3.438642454209421  3.193025136051605  -0.0  -0.0  # for region 4
  2.701790499735974  2.507882090664014  -0.0  -0.0  # for region 5