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System for Active Long Range Detection and Identification of Special Nuclear Materials Using a High Intensity Particle Beam

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
A long-range method and a system for reliably detecting and identifying special nuclear materials is provided that relies on the emission of delayed neutrons present in the decay of fission products (delayed neutron precursors) as a unique signature for the special nuclear materials, such as highly enriched uranium (.sup.235/238U). The method relies on a time-of-flight measurement in the first 1 .mu.s after the inducing radiation pulse, and pulse height data analysis for both neutrons and gamma rays that can be done at a much higher data rate than in traditional pulse processing systems. The thermal neutron fission within the time regime of 100-500 .mu.s provides a unique signature of special nuclear materials such as the highly enriched uranium.
Dioszegi, Istvan (Middle Island, NY), Forman, Leon (Miller Place, NY), Vanier, Peter E. (Setauket, NY), Salwen, Cynthia A. (Center Moriches, NY)
Brookhaven Science Associates, LLC (Upton NY)
13/ 481,988
May 29, 2012
STATEMENT OF GOVERNMENT LICENSE RIGHTS [0002] The present invention was made with Government support under contract number DE-AC02-98CH10886, awarded by the U.S. Department of Energy, and contract number IACRO 09-46641 by the U.S. Department of Defense. The government has certain rights in the invention.