A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.060414  7.358772  0.0  0.0  # for region 1
  7.358615  7.092226  0.0  0.0  # for region 2
  7.09207  6.832579  0.0  0.0  # for region 3
  6.832423  6.42743  0.0  0.0  # for region 4
  5.633594  5.110694  0.0  0.0  # for region 5
  3.641557  3.250205  0.0  0.0  # for region 6
  1.9642  0.602622  0.0  0.0  # for region 7