NON-DESTRUCTIVE INSPECTION METHOD FOR NUCLEAR FUEL ROD CONCENTRATION USING PULSED D-D NEUTRON GENERATOR

摘要

PURPOSE: A non-destructive inspection method for nuclear fuel rod concentration using pulsed d-d neutron generator is provided to reduce the management cost of a non-destructive inspection apparatus by reducing the purchasing price of a neutron source. CONSTITUTION: A non-destructive inspection apparatus(100) comprises a nuclear fuel rod(1) to be inspected, a neutron generation unit(110) for generating the neutron, and a measuring unit(120) for measuring the number of gamma rays generated from the nuclear fuel rod. The neutron generation unit comprises a neutron source(112) for generating high speed neutron, a moderator(113) for accepting the neutron source, and a wave shielding(111) for shielding the neutron generated from the neutron source.