A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.911462635711373  7.795117596950911  -0.0  -0.0  # for region 1
  7.782190370421971  7.65291810513257  -0.0  -0.0  # for region 2
  7.407300801082707  7.226319629677545  -0.0  -0.0  # for region 3
  2.4561730404986286  2.4044641343828683  -0.0  -0.0  # for region 4
  2.4044641343828683  2.3398280017381676  -0.0  -0.0  # for region 5
  1.447849371241297  1.370286012067656  -0.0  -0.0  # for region 6
  1.370286012067656  1.2927226528940152  -0.0  -0.0  # for region 7