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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:
;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1459003
Patent Number(s):
10,001,571
Application Number:
14/515,321
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Oct 15
Country of Publication:
United States
Language:
English

Citation Formats

Rowland, Mark S., and Snyderman, Neal J. Fission meter and neutron detection using poisson distribution comparison. United States: N. p., 2018. Web.
Rowland, Mark S., & Snyderman, Neal J. Fission meter and neutron detection using poisson distribution comparison. United States.
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/1459003.
@article{osti_1459003,
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 = {2018},
month = {6}
}

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Works referenced in this record:

Physical description of nuclear materials identification system (NMIS) signatures
journal, August 2000

  • Mihalczo, J. T.; Mullens, J. A.; Mattingly, J. K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 450, Issue 2-3, p. 531-555
  • DOI: 10.1016/S0168-9002(00)00304-1

Direct neutron spectrum measurement to validate natZr(n,2n) reaction cross-section at 14MeV
journal, June 2009


Probabilities of Prompt-Neutron Emission from Spontaneous Fission
journal, February 1956

  • Hicks, Donald A.; Ise, John; Pyle, Robert V.
  • Physical Review, Vol. 101, Issue 3, p. 1016-1020
  • DOI: 10.1103/PhysRev.101.1016

Application Guide to Neutron Multiplicity Counting
report, November 1998

  • Langner, D. G.; Stewart, J. E.; Pickrell, M. M.
  • LA-13422-M
  • DOI: 10.2172/1679