INVERSE RATIO OF GAMMA-RAY AND NEUTRON EMISSIONS IN THE DETECTION OF RADIATION SHIELDING IN CONTAINERS

摘要

The presence of radiation shielding material concealing illegitimate content in a container is detected by obtaining each of measured gamma-ray data and measured neutron data from the container, and comparing the measured gamma-ray and neutron data to expected gamma-ray and neutron data. An anomaly between the measured data and the expected data is an indicum of the presence of such material shielding such illegitimate content.