A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.772524544350438  7.61683453036499  -0.0  -0.0  # for region 1
  7.61683453036499  7.503061058606393  -0.0  -0.0  # for region 2
  7.431204129074649  7.281502192550179  -0.0  -0.0  # for region 3
  7.215633340479413  7.059943326493965  -0.0  -0.0  # for region 4
  2.526968688533039  2.4431356040793366  -0.0  -0.0  # for region 5
  2.275469435171931  2.149719808491377  -0.0  -0.0  # for region 6