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Title: Neutron detection using Poisson distribution comparison independent of count rate based on correlation signals

Abstract

Embodiments are directed to comparison-based methods of conditionally assessing the excess in correlation of an unknown neutron count measurement compared to the correlation present in a data defined as background, and to providing a technical definition of excess correlation intended to properly handle the measured excess correlation. The degree of correlation between an unknown source and background can be used to prevent masking of neutron count data for the source by background radiation.

Inventors:
;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1471674
Patent Number(s):
10061041
Application Number:
14/298,406
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jun 06
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Rowland, Mark S., and Snyderman, Neal J. Neutron detection using Poisson distribution comparison independent of count rate based on correlation signals. United States: N. p., 2018. Web.
Rowland, Mark S., & Snyderman, Neal J. Neutron detection using Poisson distribution comparison independent of count rate based on correlation signals. United States.
Rowland, Mark S., and Snyderman, Neal J. Tue . "Neutron detection using Poisson distribution comparison independent of count rate based on correlation signals". United States. https://www.osti.gov/servlets/purl/1471674.
@article{osti_1471674,
title = {Neutron detection using Poisson distribution comparison independent of count rate based on correlation signals},
author = {Rowland, Mark S. and Snyderman, Neal J.},
abstractNote = {Embodiments are directed to comparison-based methods of conditionally assessing the excess in correlation of an unknown neutron count measurement compared to the correlation present in a data defined as background, and to providing a technical definition of excess correlation intended to properly handle the measured excess correlation. The degree of correlation between an unknown source and background can be used to prevent masking of neutron count data for the source by background radiation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {8}
}

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Works referenced in this record:

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


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
  • https://doi.org/10.1016/S0168-9002(00)00304-1