A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.085789409972705  7.932104877962187  -0.0  -0.0  # for region 1
  4.055288618858168  3.956137307883641  -0.0  -0.0  # for region 2
  3.0042847225281784  2.8307699283227556  -0.0  -0.0  # for region 3
  2.3151831112552133  2.2160318002806862  -0.0  -0.0  # for region 4
  1.6012936722386166  1.5318877545564473  -0.0  -0.0  # for region 5