A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.376469494858735  7.30948620858274  0.0  0.0  # for region 1
  7.292870199584044  7.25392642849335  0.0  0.0  # for region 2
  7.25392642849335  7.208232403746935  0.0  0.0  # for region 3
  5.200007616594244  4.777358595702109  0.0  0.0  # for region 4
  3.5426535908486816  3.3811921671370797  0.0  0.0  # for region 5
  2.072779324497364  1.9916162786586116  0.0  0.0  # for region 6
  1.947021198527429  1.8792366767280315  0.0  0.0  # for region 7
  1.6714236033167211  1.6063147863251945  0.0  0.0  # for region 8
