Fission meter and neutron detection using poisson distribution comparison

Rowland, Mark S; Snyderman, Neal J

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Title: Fission meter and neutron detection using poisson distribution comparison

Abstract

A neutron detector system and method for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. Comparison of the observed neutron count distribution with a Poisson distribution is performed to distinguish fissile material from non-fissile material.

Inventors:: Rowland, Mark S; Snyderman, Neal J

Issue Date:: 2014-11-18

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1163979

Patent Number(s):: 8891720

Application Number:: 12/712,040

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

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G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
G01T1/167 - Measuring radioactive content of objects, e.g. contamination
G01T3/00 - Measuring neutron radiation

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
G01V5/0091 - {detecting special nuclear material [SNM], e.g. Uranium-235, Uranium-233 or Plutonium-239}

Show less

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

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                    Rowland, Mark S, and Snyderman, Neal J. Fission meter and neutron detection using poisson distribution comparison.  United States: N. p., 2014. 
        Web.

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                    Rowland, Mark S, & Snyderman, Neal J. Fission meter and neutron detection using poisson distribution comparison.  United States.

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                    Rowland, Mark S, and Snyderman, Neal J. Tue .  
        "Fission meter and neutron detection using poisson distribution comparison".  United States.  https://www.osti.gov/servlets/purl/1163979.

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@article{osti_1163979,

  title        = {Fission meter and neutron detection using poisson distribution comparison},

  author       = {Rowland, Mark S and Snyderman, Neal J},

  abstractNote = {A neutron detector system and method for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. Comparison of the observed neutron count distribution with a Poisson distribution is performed to distinguish fissile material from non-fissile material.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {11}

}

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Works referencing / citing this record: