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Title: Absolute nuclear material assay using count distribution (LAMBDA) space

Abstract

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.

Inventors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1227359
Patent Number(s):
9,201,025
Application Number:
13/456,032
Assignee:
Lawrence Livermore National Security, LLC
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Apr 25
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY

Citation Formats

Prasad, Mano K., Snyderman, Neal J., and Rowland, Mark S. Absolute nuclear material assay using count distribution (LAMBDA) space. United States: N. p., 2015. Web.
Prasad, Mano K., Snyderman, Neal J., & Rowland, Mark S. Absolute nuclear material assay using count distribution (LAMBDA) space. United States.
Prasad, Mano K., Snyderman, Neal J., and Rowland, Mark S. Tue . "Absolute nuclear material assay using count distribution (LAMBDA) space". United States. https://www.osti.gov/servlets/purl/1227359.
@article{osti_1227359,
title = {Absolute nuclear material assay using count distribution (LAMBDA) space},
author = {Prasad, Mano K. and Snyderman, Neal J. and Rowland, Mark S.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {12}
}

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Works referenced in this record:

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

Third Moment of the Number of Neutrons Detected in Short Time Intervals
journal, February 1968


Correlation Analysis with Neutron Count Distributions in Randomly or Signal Triggered Time Intervals for Assay of Special Fissile Materials
journal, February 1985

  • Hage, W.; Cifarelli, D. M.
  • Nuclear Science and Engineering, Vol. 89, Issue 2, p. 159-176
  • DOI: 10.13182/NSE85-8

Statistical Theory of Fission Chains and Generalized Poisson Neutron Counting Distributions
journal, November 2012

  • Prasad, Manoj K.; Snyderman, Neal J.
  • Nuclear Science and Engineering, Vol. 172, Issue 3
  • DOI: 10.13182/NSE11-86