A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.288724778941463  8.2060629724425  0.0  0.0  # for region 1
  8.19364653670585  8.164082204398806  0.0  0.0  # for region 2
  7.672518585040103  7.623672972108897  0.0  0.0  # for region 3
  7.265428495509774  7.243237707118511  0.0  0.0  # for region 4
  6.572152866667858  6.5322135763224  0.0  0.0  # for region 5
