A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.964376911960208  8.802239869742278  -0.0  -0.0  # for region 1
  7.676212931720829  7.593777975834043  -0.0  -0.0  # for region 2
  7.593777975834043  7.526528406557981  -0.0  -0.0  # for region 3
  6.962499761016815  6.86813342993589  -0.0  -0.0  # for region 4
  6.437519252474654  6.313866818644475  -0.0  -0.0  # for region 5
  3.7788013629559347  3.6916401590050048  -0.0  -0.0  # for region 6
  2.1463446472916456  2.088237177991026  -0.0  -0.0  # for region 7
