A 1.0 #regions in PPM
# low field   high field  bias        slope
  12.318810544956394  12.229791902886113  -0.0  -0.0  # for region 1
  8.792302801403006  8.689588983629607  -0.0  -0.0  # for region 2
  7.939106234574217  7.867221588187684  -0.0  -0.0  # for region 3
  7.788424956571677  7.723452295414618  -0.0  -0.0  # for region 4
  7.600418958329975  7.520239929668072  -0.0  -0.0  # for region 5
  7.411030563042378  7.334998725518161  -0.0  -0.0  # for region 6
  7.196759020928674  7.13869834500109  -0.0  -0.0  # for region 7
  4.161619388148804  4.065041723022988  -0.0  -0.0  # for region 8