Backscattered neutron nondestructive detector

摘要

PROBLEM TO BE SOLVED: To provide a backscattered neutron nondestructive detection device capable of detecting a structure defect and the size of the defect. The present invention performs nondestructive detection of a spent nuclear fuel storage frame with neutron radiation using a detection device, a nuclear device module system, and a speed control crane component, and distribution and deterioration degree of a boron sheet present therein. Is detected. [Selection] Figure 1