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Title: Implementation and Initial Testing of Advanced Processing and Analysis Algorithms for Correlated Neutron Counting

Abstract

In order to improve the accuracy and capabilities of neutron multiplicity counting, additional quantifiable information is needed in order to address the assumptions that are present in the point model. Extracting and utilizing higher order moments (Quads and Pents) from the neutron pulse train represents the most direct way of extracting additional information from the measurement data to allow for an improved determination of the physical properties of the item of interest. The extraction of higher order moments from a neutron pulse train required the development of advanced dead time correction algorithms which could correct for dead time effects in all of the measurement moments in a self-consistent manner. In addition, advanced analysis algorithms have been developed to address specific assumptions that are made within the current analysis model, namely that all neutrons are created at a single point within the item of interest, and that all neutrons that are produced within an item are created with the same energy distribution. This report will discuss the current status of implementation and initial testing of the advanced dead time correction and analysis algorithms that have been developed in an attempt to utilize higher order moments to improve the capabilities of correlatedmore » neutron measurement techniques.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1227253
Report Number(s):
LA-UR-15-29225
TRN: US1500906
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; NEUTRONS; ALGORITHMS; DEAD TIME; ENERGY SPECTRA; IMPLEMENTATION; TESTING; CORRECTIONS; DATA ANALYSIS; DATA PROCESSING; PULSES; ACCURACY; MULTIPLICITY; NEUTRON DETECTION; CORRELATIONS

Citation Formats

Santi, Peter Angelo, Cutler, Theresa Elizabeth, Favalli, Andrea, Koehler, Katrina Elizabeth, Henzl, Vladimir, Henzlova, Daniela, Parker, Robert Francis, and Croft, Stephen. Implementation and Initial Testing of Advanced Processing and Analysis Algorithms for Correlated Neutron Counting. United States: N. p., 2015. Web. doi:10.2172/1227253.
Santi, Peter Angelo, Cutler, Theresa Elizabeth, Favalli, Andrea, Koehler, Katrina Elizabeth, Henzl, Vladimir, Henzlova, Daniela, Parker, Robert Francis, & Croft, Stephen. Implementation and Initial Testing of Advanced Processing and Analysis Algorithms for Correlated Neutron Counting. United States. https://doi.org/10.2172/1227253
Santi, Peter Angelo, Cutler, Theresa Elizabeth, Favalli, Andrea, Koehler, Katrina Elizabeth, Henzl, Vladimir, Henzlova, Daniela, Parker, Robert Francis, and Croft, Stephen. 2015. "Implementation and Initial Testing of Advanced Processing and Analysis Algorithms for Correlated Neutron Counting". United States. https://doi.org/10.2172/1227253. https://www.osti.gov/servlets/purl/1227253.
@article{osti_1227253,
title = {Implementation and Initial Testing of Advanced Processing and Analysis Algorithms for Correlated Neutron Counting},
author = {Santi, Peter Angelo and Cutler, Theresa Elizabeth and Favalli, Andrea and Koehler, Katrina Elizabeth and Henzl, Vladimir and Henzlova, Daniela and Parker, Robert Francis and Croft, Stephen},
abstractNote = {In order to improve the accuracy and capabilities of neutron multiplicity counting, additional quantifiable information is needed in order to address the assumptions that are present in the point model. Extracting and utilizing higher order moments (Quads and Pents) from the neutron pulse train represents the most direct way of extracting additional information from the measurement data to allow for an improved determination of the physical properties of the item of interest. The extraction of higher order moments from a neutron pulse train required the development of advanced dead time correction algorithms which could correct for dead time effects in all of the measurement moments in a self-consistent manner. In addition, advanced analysis algorithms have been developed to address specific assumptions that are made within the current analysis model, namely that all neutrons are created at a single point within the item of interest, and that all neutrons that are produced within an item are created with the same energy distribution. This report will discuss the current status of implementation and initial testing of the advanced dead time correction and analysis algorithms that have been developed in an attempt to utilize higher order moments to improve the capabilities of correlated neutron measurement techniques.},
doi = {10.2172/1227253},
url = {https://www.osti.gov/biblio/1227253}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 01 00:00:00 EST 2015},
month = {Tue Dec 01 00:00:00 EST 2015}
}