A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.040735611759732  7.898536107371698  -0.0  -0.0  # for region 1
  7.019484625700216  6.799721755282345  -0.0  -0.0  # for region 2
  3.9815861228649476  3.826459390805274  -0.0  -0.0  # for region 3
  3.516205926685928  3.23180691790986  -0.0  -0.0  # for region 4
  2.727645038715922  2.4820277129547725  -0.0  -0.0  # for region 5