A 1.0 #regions in PPM
# low field   high field  bias        slope
  11.052493983939632  10.855908122565213  -0.0  -0.0  # for region 1
  7.586758057486889  7.470262732227972  -0.0  -0.0  # for region 2
  7.270544420186422  7.157453118298215  -0.0  -0.0  # for region 3
  7.074337824139413  7.002122896427665  -0.0  -0.0  # for region 4
  3.94593265383431  3.826028622916693  -0.0  -0.0  # for region 5
  3.5644198281873463  3.4445157972697293  -0.0  -0.0  # for region 6
  1.5260513025878546  1.4170476381172936  -0.0  -0.0  # for region 7