A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.85454601227321  7.798269838183228  -0.0  -0.0  # for region 1
  7.764102161057168  7.629441315913282  -0.0  -0.0  # for region 2
  7.629441315913282  7.518898831093674  -0.0  -0.0  # for region 3
  7.518898831093674  7.426445116517275  -0.0  -0.0  # for region 4
  7.432474706598344  7.2696757744094676  -0.0  -0.0  # for region 5
  7.239527824004121  7.130995202544869  -0.0  -0.0  # for region 6
  2.522631234765758  2.4448408442663734  -0.0  -0.0  # for region 7
  2.2543337654923703  2.163842903074719  -0.0  -0.0  # for region 8
  0.3063988850281884  0.23019605351858713  -0.0  -0.0  # for region 9