A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.769263173056616  7.665845360436894  -0.0  -0.0  # for region 1
  7.342664696000263  7.239246883380541  -0.0  -0.0  # for region 2
  4.873564419704399  4.666728794464956  -0.0  -0.0  # for region 3
  4.059149145324088  3.9428041061269017  -0.0  -0.0  # for region 4
  3.4774239493381525  3.2188794177888473  -0.0  -0.0  # for region 5
  2.417391369986002  2.262264651056419  -0.0  -0.0  # for region 6
  1.3832132437887819  1.2797954311690598  -0.0  -0.0  # for region 7