A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.844944674552596  7.735033015364468  -0.0  -0.0  # for region 1
  7.240430549017895  6.88321765665648  -0.0  -0.0  # for region 2
  4.28655470833697  4.011775560366652  -0.0  -0.0  # for region 3
  3.585867881012658  3.3935224774334345  -0.0  -0.0  # for region 4
  1.5112853138367524  1.2777230380619815  -0.0  -0.0  # for region 5