A 1.0 #regions in PPM
# low field   high field  bias        slope
  6.2009363140149745  5.770781272412134  -0.0  -0.0  # for region 1
  5.446768383932072  5.1786197865692625  -0.0  -0.0  # for region 2
  4.7763968905250485  4.5082482931622385  -0.0  -0.0  # for region 3