A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.25220776861622  8.176123583515503  -0.0  -0.0  # for region 1
  7.467955399116522  7.391871214015805  -0.0  -0.0  # for region 2
  6.063324289564825  5.981387474840976  -0.0  -0.0  # for region 3
  4.044167069584261  3.9505249956141477  -0.0  -0.0  # for region 4
  3.312588366692752  3.148714737245054  -0.0  -0.0  # for region 5
  2.610272811916903  2.5458938860624505  -0.0  -0.0  # for region 6
  1.4075631584876487  1.3712508601270141  -0.0  -0.0  # for region 7