A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.255093632666949  8.164899970205377  -0.0  -0.0  # for region 1
  7.4053743915816215  7.329421833719246  -0.0  -0.0  # for region 2
  4.034979636438704  3.9210507996451405  -0.0  -0.0  # for region 3
  2.696315804114334  2.577639932454372  -0.0  -0.0  # for region 4
  1.3861341809883547  1.310181623125979  -0.0  -0.0  # for region 5