A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.883142013890749  7.849138525692802  -0.0  -0.0  # for region 1
  7.877474765857759  7.8548057737257935  -0.0  -0.0  # for region 2
  7.764129805197935  7.64511759650512  -0.0  -0.0  # for region 3
  7.469432907482393  7.282413722393684  -0.0  -0.0  # for region 4
  2.5955995991099665  2.504923630582107  -0.0  -0.0  # for region 5