A method and a system for detecting the presence of special nuclear materials in a suspect container. The system and its method include irradiating the suspect container with a beam of neutrons, so as to induce a thermal fission in a portion of the special nuclear materials, detecting the gamma rays...http://www.google.com/patents/US7483509?utm_source=gb-gplus-sharePatent US7483509 - Detecting special nuclear materials in suspect containers using high-energy gamma rays emitted by fission products
