A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.207394872285108  7.087791638473739  -0.0  -0.0  # for region 1
  6.89538643625545  6.838184889650012  -0.0  -0.0  # for region 2
  6.832984749049518  6.786183483645069  -0.0  -0.0  # for region 3
  6.786183483645069  6.702981234037161  -0.0  -0.0  # for region 4
  6.624979125029745  6.541776875421837  -0.0  -0.0  # for region 5
  3.7285008105544173  3.6140977173435425  -0.0  -0.0  # for region 6