A 1.0 #regions in PPM
# low field   high field  bias        slope
  11.046530293744757  10.956192296576416  -0.0  -0.0  # for region 1
  10.45391303232044  10.305758716964359  -0.0  -0.0  # for region 2
  8.549588052011808  8.4737041343904  -0.0  -0.0  # for region 3
  7.559483603046789  7.487213205312115  -0.0  -0.0  # for region 4
