A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.228338268024547  8.051384756884234  0.0  0.0  # for region 1
  4.998936689713838  4.799863989680985  0.0  0.0  # for region 2
  4.025692378442117  3.826619678409265  0.0  0.0  # for region 3
  3.1409248227405526  2.764898611567388  0.0  0.0  # for region 4
  2.344634022609145  2.167680511468832  0.0  0.0  # for region 5
  1.0396018779493381  0.9621847168254511  0.0  0.0  # for region 6
  0.9290059334866425  0.8515887723627557  0.0  0.0  # for region 7
