Absolute nuclear material assay using count distribution (LAMBDA) space

Patent · Tue Jun 05 00:00:00 EDT 2012

OSTI ID:1055713

Prasad, Manoj K ^[1]; Snyderman, Neal J ^[2]; Rowland, Mark S ^[3]

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1. Pleasanton, CA
2. Berkeley, CA
3. Alamo, CA

A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• Assignee: Lawrence Livermore National Security, LLC (Livermore, CA)
• Patent Number(s): 8,194,813
• Application Number: 12/480,562
• OSTI ID: 1055713
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS