A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.118298977789568  7.937317790386616  -0.0  -0.0  # for region 1
  7.019484625700216  6.851430665968903  -0.0  -0.0  # for region 2
  3.968658895193308  3.813532163133635  -0.0  -0.0  # for region 3
  3.46449701599937  3.2964430562680573  -0.0  -0.0  # for region 4
  2.76642672173084  2.585445534327888  -0.0  -0.0  # for region 5