A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.847866419294991  7.724180581323439  -0.0  -0.0  # for region 1
  7.724180581323439  7.6066790352504645  -0.0  -0.0  # for region 2
  7.390228818800248  7.204700061842919  -0.0  -0.0  # for region 3
  7.050092764378479  6.932591218305505  -0.0  -0.0  # for region 4
  2.683982683982684  2.529375386518244  -0.0  -0.0  # for region 5