A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.188693122739389  8.08114931062086  -0.0  -0.0  # for region 1
  8.18432117274774  7.450356976614445  -0.0  -0.0  # for region 2
  8.065785908889643  7.950560395905505  -0.0  -0.0  # for region 3
  7.935196994174286  7.866061686383804  -0.0  -0.0  # for region 4
  7.774866504163627  7.706146839506153  -0.0  -0.0  # for region 5
  7.692784682489422  7.556299792961384  -0.0  -0.0  # for region 6
  7.530529918714831  7.4589469346966295  -0.0  -0.0  # for region 7