Neutron multiplicity counting: Confidence intervals for reconstruction parameters
Abstract
From nuclear materials accountability to homeland security, the need for improved nuclear material detection, assay, and authentication has grown over the past decades. Starting in the 1940s, neutron multiplicity counting techniques have enabled quantitative evaluation of masses and multiplications of fissile materials. In this paper, we propose a new method to compute uncertainties on these parameters using a model-based sequential Bayesian processor, resulting in credible regions in the fissile material mass and multiplication space. These uncertainties will enable us to evaluate quantitatively proposed improvements to the theoretical fission chain model. Additionally, because the processor can calculate uncertainties in real time, it is a useful tool in applications such as portal monitoring: monitoring can stop as soon as a preset confidence of non-threat is reached.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1251093
- Report Number(s):
- LLNL-JRNL-668401
Journal ID: ISSN 0029-5639
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Science and Engineering
- Additional Journal Information:
- Journal Volume: 182; Journal Issue: 4; Journal ID: ISSN 0029-5639
- Publisher:
- American Nuclear Society
- 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
Citation Formats
Verbeke, Jerome M. Neutron multiplicity counting: Confidence intervals for reconstruction parameters. United States: N. p., 2016.
Web. doi:10.13182/NSE15-35.
Verbeke, Jerome M. Neutron multiplicity counting: Confidence intervals for reconstruction parameters. United States. https://doi.org/10.13182/NSE15-35
Verbeke, Jerome M. Wed .
"Neutron multiplicity counting: Confidence intervals for reconstruction parameters". United States. https://doi.org/10.13182/NSE15-35. https://www.osti.gov/servlets/purl/1251093.
@article{osti_1251093,
title = {Neutron multiplicity counting: Confidence intervals for reconstruction parameters},
author = {Verbeke, Jerome M.},
abstractNote = {From nuclear materials accountability to homeland security, the need for improved nuclear material detection, assay, and authentication has grown over the past decades. Starting in the 1940s, neutron multiplicity counting techniques have enabled quantitative evaluation of masses and multiplications of fissile materials. In this paper, we propose a new method to compute uncertainties on these parameters using a model-based sequential Bayesian processor, resulting in credible regions in the fissile material mass and multiplication space. These uncertainties will enable us to evaluate quantitatively proposed improvements to the theoretical fission chain model. Additionally, because the processor can calculate uncertainties in real time, it is a useful tool in applications such as portal monitoring: monitoring can stop as soon as a preset confidence of non-threat is reached.},
doi = {10.13182/NSE15-35},
journal = {Nuclear Science and Engineering},
number = 4,
volume = 182,
place = {United States},
year = {Wed Mar 09 00:00:00 EST 2016},
month = {Wed Mar 09 00:00:00 EST 2016}
}
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Works referencing / citing this record:
Correlated prompt fission data in transport simulations
journal, January 2018
- Talou, P.; Vogt, R.; Randrup, J.
- The European Physical Journal A, Vol. 54, Issue 1
Correlated Prompt Fission Data in Transport Simulations
text, January 2017
- Talou, P.; Vogt, R.; Randrup, J.
- arXiv