A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.7888304921386196  7.709108583314274  -0.0  -0.0  # for region 1
  7.689178106108187  7.605470101842624  -0.0  -0.0  # for region 2
  7.33973040576147  7.2002170653188635  -0.0  -0.0  # for region 3
  7.008884484140433  6.938463464678928  -0.0  -0.0  # for region 4
  2.641558900069268  2.5094809550658046  -0.0  -0.0  # for region 5