A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.456275568009442  7.327448057809865  -0.0  -0.0  # for region 1
  4.341547601576913  4.182899887777613  -0.0  -0.0  # for region 2
  3.9105758517732205  3.8139134073453675  -0.0  -0.0  # for region 3
  3.7474096455790047  3.7087446678078635  -0.0  -0.0  # for region 4
  3.6778126855909505  3.569550747831755  -0.0  -0.0  # for region 5