A 1.0 #regions in PPM
# low field   high field  bias        slope
  4.231318569858111  4.128884414535661  -0.0  -0.0  # for region 1
  4.026450259213211  3.904317227867214  -0.0  -0.0  # for region 2
  3.656111389970509  3.506399932191544  -0.0  -0.0  # for region 3
  3.467002180144448  3.3054713967513543  -0.0  -0.0  # for region 4
  2.6948062400213666  2.5175163558094344  -0.0  -0.0  # for region 5
  2.521456131014144  2.442660626919952  -0.0  -0.0  # for region 6