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Title: A generalized method for characterization of 235U and 239Pu content using short-lived fission product gamma spectroscopy

Abstract

Rapid non-destructive assay methods for trace fissile material analysis are needed in both nuclear forensics and safeguards communities. To address these needs, research at the High Flux Isotope Reactor Neutron Activation Analysis laboratory has developed a generalized non-destructive assay method to characterize materials containing fissile isotopes. This method relies on gamma-ray emissions from short-lived fission products and capitalizes off of differences in fission product yields to identify fissile compositions of trace material samples. Although prior work has explored the use of short-lived fission product gamma-ray measurements, the proposed method is the first to provide a holistic characterization of isotopic identification, mass ratios, and absolute mass determination. Successful single fissile isotope mass recoveries of less than 6% error have been conducted on standards of 235U and 239Pu as low as 12 nanograms in less than 10 minutes. Additionally, mixtures of fissile isotope standards containing 235U and 239Pu have been characterized as low as 229 nanograms of fissile mass with less than 12% error. The generalizability of this method is illustrated by evaluating different fissile isotopes, mixtures of fissile isotopes, and two different irradiation positions in the reactor. Furthermore, it is anticipated that this method will be expanded to characterize additional fissilemore » nuclides, utilize various irradiation sources, and account for increasingly complex sample matrices.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1380032
Alternate Identifier(s):
OSTI ID: 1267025
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Published Article
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Volume: 833 Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; gamma spectroscopy; short-lived fission products; neutron activation analysis; nuclear forensics; safeguards; ORIGEN

Citation Formats

Knowles, Justin, Skutnik, Steven, Glasgow, David, and Kapsimalis, Roger. A generalized method for characterization of 235U and 239Pu content using short-lived fission product gamma spectroscopy. Netherlands: N. p., 2016. Web. https://doi.org/10.1016/j.nima.2016.06.112.
Knowles, Justin, Skutnik, Steven, Glasgow, David, & Kapsimalis, Roger. A generalized method for characterization of 235U and 239Pu content using short-lived fission product gamma spectroscopy. Netherlands. https://doi.org/10.1016/j.nima.2016.06.112
Knowles, Justin, Skutnik, Steven, Glasgow, David, and Kapsimalis, Roger. Sat . "A generalized method for characterization of 235U and 239Pu content using short-lived fission product gamma spectroscopy". Netherlands. https://doi.org/10.1016/j.nima.2016.06.112.
@article{osti_1380032,
title = {A generalized method for characterization of 235U and 239Pu content using short-lived fission product gamma spectroscopy},
author = {Knowles, Justin and Skutnik, Steven and Glasgow, David and Kapsimalis, Roger},
abstractNote = {Rapid non-destructive assay methods for trace fissile material analysis are needed in both nuclear forensics and safeguards communities. To address these needs, research at the High Flux Isotope Reactor Neutron Activation Analysis laboratory has developed a generalized non-destructive assay method to characterize materials containing fissile isotopes. This method relies on gamma-ray emissions from short-lived fission products and capitalizes off of differences in fission product yields to identify fissile compositions of trace material samples. Although prior work has explored the use of short-lived fission product gamma-ray measurements, the proposed method is the first to provide a holistic characterization of isotopic identification, mass ratios, and absolute mass determination. Successful single fissile isotope mass recoveries of less than 6% error have been conducted on standards of 235U and 239Pu as low as 12 nanograms in less than 10 minutes. Additionally, mixtures of fissile isotope standards containing 235U and 239Pu have been characterized as low as 229 nanograms of fissile mass with less than 12% error. The generalizability of this method is illustrated by evaluating different fissile isotopes, mixtures of fissile isotopes, and two different irradiation positions in the reactor. Furthermore, it is anticipated that this method will be expanded to characterize additional fissile nuclides, utilize various irradiation sources, and account for increasingly complex sample matrices.},
doi = {10.1016/j.nima.2016.06.112},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 833,
place = {Netherlands},
year = {2016},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.nima.2016.06.112

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Works referenced in this record:

Isotopic Depletion and Decay Methods and Analysis Capabilities in SCALE
journal, May 2011

  • Gauld, Ian C.; Radulescu, Georgeta; Ilas, Germina
  • Nuclear Technology, Vol. 174, Issue 2
  • DOI: 10.13182/NT11-3

MCNP6 simulations of gamma line emissions from fission products and their comparisons to plutonium and uranium measurements
journal, March 2015


Identification of fissile materials from fission product gamma-ray spectra
journal, November 1998

  • Beddingfield, D. H.; Cecil, F. E.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 417, Issue 2-3
  • DOI: 10.1016/S0168-9002(98)00781-5

ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data
journal, December 2011


SCALE 6: Comprehensive Nuclear Safety Analysis Code System
journal, May 2011


Fission-product gamma-ray line pairs sensitive to fissile material and neutron energy
journal, July 2008

  • Marrs, R. E.; Norman, E. B.; Burke, J. T.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 592, Issue 3
  • DOI: 10.1016/j.nima.2008.04.032

    Works referencing / citing this record:

    Rapid measurements of 235U fission product isotope ratios using an online, high-pressure ion chromatography inductively coupled plasma mass spectrometry protocol with comparison to isotopic depletion models
    journal, February 2019

    • Fenske, Emilie K.; Roach, Benjamin D.; Glasgow, David C.
    • Journal of Radioanalytical and Nuclear Chemistry, Vol. 320, Issue 1
    • DOI: 10.1007/s10967-019-06438-4