A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.3618942055930745  7.298560524150936  0.0  0.0  # for region 1
  7.294359820789977  7.225532911875817  0.0  0.0  # for region 2
  6.286387323178256  5.682826133258505  0.0  0.0  # for region 3
  3.609273978012166  3.497172290397811  0.0  0.0  # for region 4
  3.337027022377305  3.2009035445598744  0.0  0.0  # for region 5
  2.3881663093558037  2.2800682534419616  0.0  0.0  # for region 6
  2.2080028828327336  2.075883036715816  0.0  0.0  # for region 7
