A 1.0 #regions in PPM
# low field   high field  bias        slope
  10.018600564141316  9.78591048652255  -0.0  -0.0  # for region 1
  7.4331552572661375  7.2392468592505  -0.0  -0.0  # for region 2
  7.148756273509868  7.019484008166109  -0.0  -0.0  # for region 3
  3.8910951868471435  3.6842595622971293  -0.0  -0.0  # for region 4