A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.663324785070514  7.5700642270327565  -0.0  -0.0  # for region 1
  7.487276779790682  7.415959882467691  -0.0  -0.0  # for region 2
  7.393018782629526  7.3361647525958125  -0.0  -0.0  # for region 3
  5.51354905474505  5.478910532958888  -0.0  -0.0  # for region 4
  5.00300736407076  4.964603785568712  -0.0  -0.0  # for region 5
