METHOD AND SYSTEM FOR INSPECTING A NUCLEAR FACILITY

摘要

The method for inspecting a nuclear facility comprises the steps consisting of placing a radiation detector (2) in front of a surface of a portion of the facility (1), the radiation detector (2) being collimated to receive radiation from a cylindrical region of the portion of the facility; carrying out a plurality of measurements of radiation received by the radiation detector tar different transmission energies and different distances, along the axis of the cylindrical region, between the radiation detector and surface of the portion of the facility; and analysing the radiation measurements by subdividing the cylindrical region into a plurality of meshes (3) so as to estimate respective levels of radioactivity in the meshes (3).

主权项

1. A method of inspecting a nuclear facility, comprising:
arranging a radiation detector in front of a surface of a portion of the facility, the radiation detector being collimated to receive radiation from a cylindrical region of the portion of the facility; taking several measurements of the radiation received by the radiation detector for different emission energies and different distances, along the axis (X) of the cylindrical region, between the radiation detector and the surface of the portion of facility; and analyzing the radiation measurements by subdividing the cylindrical region into several meshes so as to estimate respective levels of radioactivity in the meshes.