A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.133105913085814  8.058437567838558  -0.0  -0.0  # for region 1
  8.057001638122264  7.962230276846899  -0.0  -0.0  # for region 2
  7.837304391529374  7.75114860855177  -0.0  -0.0  # for region 3
  7.621914934085364  7.561605886001041  -0.0  -0.0  # for region 4
  7.469706384158264  7.377806882315486  -0.0  -0.0  # for region 5
  7.089185009340513  6.9886699291999745  -0.0  -0.0  # for region 6