A 1.0 #regions in PPM
# low field   high field  bias        slope
  11.35656335694886  11.193159567640244  -0.0  -0.0  # for region 1
  7.623415247359694  7.497720024814604  -0.0  -0.0  # for region 2
  7.353170518887751  7.202336251833644  -0.0  -0.0  # for region 3
  7.145773401688353  7.032647701397772  -0.0  -0.0  # for region 4
  3.9908233158065998  3.927975704534055  -0.0  -0.0  # for region 5
  3.6200224092985853  3.50061194788075  -0.0  -0.0  # for region 6
  1.6843159821042029  1.5774750429408766  -0.0  -0.0  # for region 7