Multi-Particle Inspection Using Associate Particle Sources

This disclosure describes a potential improvement the neutron/gamma inspection systems being developed for inspection of air cargo containers. These current systems use neutrons and gammas together to help isolate materials such as explosives within a container. Scattering of the neutrons and gammas within the cargo requires the systems to use slit collimators. This disclosure introduces the notion of using associated particle sources to provide electronic collimation based on initial time and/or direction of the particle leaving the source. Electronic collimation will reduce shielding material required and speed inspection by allowing imaging with cone beams instead of with fan beams.

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