A 1.0 #regions in PPM
# low field   high field  bias        slope
  3.830488881787323  3.6922632891112057  -0.0  -0.0  # for region 1
  3.275243704427326  3.1440465317177906  -0.0  -0.0  # for region 2
  1.7243056984681773  1.5837372991365324  -0.0  -0.0  # for region 3
  1.225287880840838  1.1034619347534125  -0.0  -0.0  # for region 4
  0.6817567367584777  0.5411883374268328  -0.0  -0.0  # for region 5