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Title: Method for measuring multiple scattering corrections between liquid scintillators

Abstract

In this study, a time-of-flight method is proposed to experimentally quantify the fractions of neutrons scattering between scintillators. An array of scintillators is characterized in terms of crosstalk with this method by measuring a californium source, for different neutron energy thresholds. The spectral information recorded by the scintillators can be used to estimate the fractions of neutrons multiple scattering. With the help of a correction to Feynman's point model theory to account for multiple scattering, these fractions can in turn improve the mass reconstruction of fissile materials under investigation.

Authors:
 [1];  [1];  [1];  [1]
+ Show Author Affiliations
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
OSTI Identifier:
1252624
Alternate Identifier(s):
OSTI ID: 1359653
Report Number(s):
LLNL-JRNL-680226
Journal ID: ISSN 0168-9002
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 825; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS AND PHYSICAL PROTECTION; 11 NUCLEAR FUEL CYCLE AND RUEL MATERIALS; 22 GENERAL STUDIES OF NUCLEAR REACTORS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; liquid scintillators; crosstalk; multiple scattering; neutron multiplicity; neutron correlation; fissile materials

Citation Formats

Verbeke, J. M., Glenn, A. M., Keefer, G. J., and Wurtz, R. E. Method for measuring multiple scattering corrections between liquid scintillators. United States: N. p., 2016. Web. doi:10.1016/j.nima.2016.04.003.
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Verbeke, J. M., Glenn, A. M., Keefer, G. J., & Wurtz, R. E. Method for measuring multiple scattering corrections between liquid scintillators. United States. https://doi.org/10.1016/j.nima.2016.04.003
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Verbeke, J. M., Glenn, A. M., Keefer, G. J., and Wurtz, R. E. Mon . "Method for measuring multiple scattering corrections between liquid scintillators". United States. https://doi.org/10.1016/j.nima.2016.04.003. https://www.osti.gov/servlets/purl/1252624.
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@article{osti_1252624,
title = {Method for measuring multiple scattering corrections between liquid scintillators},
author = {Verbeke, J. M. and Glenn, A. M. and Keefer, G. J. and Wurtz, R. E.},
abstractNote = {In this study, a time-of-flight method is proposed to experimentally quantify the fractions of neutrons scattering between scintillators. An array of scintillators is characterized in terms of crosstalk with this method by measuring a californium source, for different neutron energy thresholds. The spectral information recorded by the scintillators can be used to estimate the fractions of neutrons multiple scattering. With the help of a correction to Feynman's point model theory to account for multiple scattering, these fractions can in turn improve the mass reconstruction of fissile materials under investigation.},
doi = {10.1016/j.nima.2016.04.003},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 825,
place = {United States},
year = {Mon Apr 11 00:00:00 EDT 2016},
month = {Mon Apr 11 00:00:00 EDT 2016}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1016/j.nima.2016.04.003
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    A Note on the Nomenclature in Neutron Multiplicity Mathematics
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