A 1.0 #regions in PPM
# low field   high field  bias        slope
  12.624017317768779  12.005066519757642  -0.0  -0.0  # for region 1
  8.201098073647541  8.097939607312352  -0.0  -0.0  # for region 2
  7.711095358555393  7.569252467344508  -0.0  -0.0  # for region 3
  7.4531991927174195  7.324251109798433  -0.0  -0.0  # for region 4
  7.221092643463244  7.105039368836156  -0.0  -0.0  # for region 5