β surface contamination measurement method with spatial resolution

The present invention belongs to the technical field monitoring of radioactive contamination, discloses a resolution method for measuring surface contamination β position. The method of surface contamination using β β position resolving detector for radioactive surface contamination detection, comprising measuring a position relationship acquiring standard β radioactive surface contamination and step two curves. The method is simple, low detection limit, large area detection sensitivity, fast and accurately measured contamination give location information advantages.