A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.851813124608122  7.759075174317475  -0.0  -0.0  # for region 1
  7.401862328753501  7.319428595161814  -0.0  -0.0  # for region 2
  4.156034068580854  4.059861379390553  -0.0  -0.0  # for region 3
  3.4244346829546375  3.3282619937643365  -0.0  -0.0  # for region 4
  2.4970551800481657  2.4214909242557865  -0.0  -0.0  # for region 5
  1.9474969561035902  1.8341505724150213  -0.0  -0.0  # for region 6