A 1.0 #regions in PPM
# low field   high field  bias        slope
  2.4566631782068993  2.3918051524891526  -0.0  -0.0  # for region 1
  2.3838633534216735  2.321652594059753  -0.0  -0.0  # for region 2
  2.2184092061825234  2.156198446820603  -0.0  -0.0  # for region 3
  2.071485923434158  1.9814788673360606  -0.0  -0.0  # for region 4
  1.8822063789925707  1.5790943812504479  -0.0  -0.0  # for region 5
