A 1.0 #regions in PPM
# low field   high field  bias        slope
  9.301252143127597  8.969064566587326  -0.0  -0.0  # for region 1
  8.690027002293498  8.384414431876449  -0.0  -0.0  # for region 2
  7.680176769611073  7.228401665516304  -0.0  -0.0  # for region 3
  6.138826414464214  5.687051310369445  -0.0  -0.0  # for region 4
  2.777088139876668  2.2721630235354557  -0.0  -0.0  # for region 5
