A 1.0 #regions in PPM
# low field   high field  bias        slope
  2.4473993066553943  2.2768488323240077  0.0  0.0  # for region 1
  2.2768488323240077  2.1148258817091907  0.0  0.0  # for region 2
  2.1148258817091907  1.9528029310943738  0.0  0.0  # for region 3
  1.9613304548109431  1.8334175990624033  0.0  0.0  # for region 4
  1.8334175990624033  1.611701982431601  0.0  0.0  # for region 5
  1.6287570298647398  1.4155689369505067  0.0  0.0  # for region 6
