A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.009598711690332  7.91242853667849  -0.0  -0.0  # for region 1
  6.983595981418244  6.86455741355316  -0.0  -0.0  # for region 2
  4.192198979082286  4.085774501688364  -0.0  -0.0  # for region 3
  3.6230593825843593  3.5212620563814783  -0.0  -0.0  # for region 4
  3.4102104277965197  3.3084131015936387  -0.0  -0.0  # for region 5
  2.6930019931853115  2.5588146086451498  -0.0  -0.0  # for region 6
  1.517705590661137  1.3973996596940956  -0.0  -0.0  # for region 7