A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.891622674641974  7.711095358555393  -0.0  -0.0  # for region 1
  7.440304384425521  7.311356301506534  -0.0  -0.0  # for region 2
  4.110220143042696  4.052193505729152  -0.0  -0.0  # for region 3
  3.4815982388126354  3.2108072646827637  -0.0  -0.0  # for region 4
  2.553172041795933  2.3855395340012504  -0.0  -0.0  # for region 5
  1.4700081452764462  1.3539548706493583  -0.0  -0.0  # for region 6