A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.8944044851108535  7.736029086489802  -0.0  -0.0  # for region 1
  7.736029086489802  7.565470964897901  -0.0  -0.0  # for region 2
  7.565470964897901  7.401004204791425  -0.0  -0.0  # for region 3
  7.151258383888998  6.931969370413697  -0.0  -0.0  # for region 4
  2.3147173644615155  2.1076110739570644  -0.0  -0.0  # for region 5
  2.1076110739570644  1.918778867908888  -0.0  -0.0  # for region 6
  1.632484878093911  1.5289317328416854  -0.0  -0.0  # for region 7
  1.3644649727352092  1.193906851143308  -0.0  -0.0  # for region 8
  0.3411162431838023  0.17055812159190115  -0.0  -0.0  # for region 9