A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.392829131873794  8.350084904056764  0.0  0.0  # for region 1
  7.918368203104764  7.8606634955517745  0.0  0.0  # for region 2
  7.65335399063918  7.584963226131933  0.0  0.0  # for region 3
  7.527258518578942  7.490925924934467  0.0  0.0  # for region 4
  7.424672371818071  7.375516509828486  0.0  0.0  # for region 5
  7.206676809951219  7.163932582134189  0.0  0.0  # for region 6
  7.138286045443971  7.095541817626941  0.0  0.0  # for region 7
