Patent ID: 8345812
Filing Date: 2013-01-01
Classification: G01V,H05H

Abstract:
1. A system for detecting fissionable material, the system comprising: a source configured to accelerate a pulsed beam of charged particles; a first target configured to generate a first neutron beam in response to being struck by accelerated charged particles, the first neutron beam including neutrons having a first energy that is sufficient to cause fission in a first class of fissionable material, wherein said first class of fissionable material is non-weaponizable fissionable material; a second target configured to generate a second neutron beam in response to being struck by accelerated charged particles, the second neutron beam including essentially only neutrons having a second energy that is lower than the first energy, the second energy sufficient to cause fission in a second class of fissionable material, wherein said second class of fissionable material is weaponizable fissionable material, and insufficient to cause fission in the first class of fissionable material; a sensor configured to detect radiation from a fission product; and a processor coupled to a non-transitory computer-readable storage medium, the medium storing instructions that, when executed, cause the processor to: