P    #regions in PPM
# 2023-11-02 12:18:20 +0100  nim51sx@woc2055
# low field   high field   mi   maxi
  11.011932522742994  10.733275396094278  0.282  0.705  # for region 1
  9.568886688312146  9.37228973819516  0.259  0.676  # for region 2
  9.37228973819516  9.31283347003152  0.060  0.214  # for region 3
  9.245445380594886  9.066308656320713  0.085  0.400  # for region 4
