A 1.0 #regions in PPM
# low field   high field  bias        slope
  172.18154954281852  171.89444597612237  -0.0  -0.0  # for region 1
  96.93986848696875  96.37097254514381  -0.0  -0.0  # for region 2
  93.19463686995459  92.51196173976467  -0.0  -0.0  # for region 3
  21.25774502619171  20.74573867854927  -0.0  -0.0  # for region 4
