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Title: Measuring key Sm isotope ratios in irradiated UO 2 for use in plutonium discrimination nuclear forensics

Abstract

As part of an experimental validation of a nuclear forensics methodology for Pu source reactor-type discrimination, destructive analysis has been performed here on two irradiated UO 2 pellets with different irradiation histories. Analysis has focused on measuring key Sm fission product isotope ratios used in a previously published maximum likelihood methodology to determine the most likely irradiation history of the pellets. A total of 21 Sm isotope ratios were measured within the irradiated pellets, and generally agreed within 20% of the irradiations as simulated using the Monte Carlo Radiation Transport and material depletion code, MCNP6. Results indicate the chosen approach can accurately measure the isotope ratios within 5% experimental error.

Authors:
 [1];  [2];  [3];  [3];  [2];  [1]
  1. Texas A & M Univ., College Station, TX (United States). Cyclotron Inst. Dept. of Chemistry
  2. Texas A & M Univ., College Station, TX (United States). Center for Nuclear Security Science and Policy Initiatives. Dept. of Nuclear Engineering
  3. Texas A & M Univ., College Station, TX (United States). Center for Nuclear Security Science and Policy Initiatives
Publication Date:
Research Org.:
Texas A & M Univ., College Station, TX (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20); Dept. of Homeland Security (DHS) (United States); National Science Foundation (NSF)
OSTI Identifier:
1510324
Grant/Contract Number:  
NA0003180; DHS-2012-DN-077-ARI1057-02&03; DHS-2015-DN-077-ARI1099; ECCS-1140018
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 320; Journal Issue: 2; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 07 ISOTOPE AND RADIATION SOURCES; nuclear forensics; cation exchange chromatography; isotope ratios; separated plutonium; irradiated UO2

Citation Formats

Glennon, Kevin J., Osborn, Jeremy M., Burns, Jonathan D., Kitcher, Evans D., Chirayath, Sunil S., and Folden, Charles M. Measuring key Sm isotope ratios in irradiated UO2 for use in plutonium discrimination nuclear forensics. United States: N. p., 2019. Web. doi:10.1007/s10967-019-06486-w.
Glennon, Kevin J., Osborn, Jeremy M., Burns, Jonathan D., Kitcher, Evans D., Chirayath, Sunil S., & Folden, Charles M. Measuring key Sm isotope ratios in irradiated UO2 for use in plutonium discrimination nuclear forensics. United States. doi:10.1007/s10967-019-06486-w.
Glennon, Kevin J., Osborn, Jeremy M., Burns, Jonathan D., Kitcher, Evans D., Chirayath, Sunil S., and Folden, Charles M. Fri . "Measuring key Sm isotope ratios in irradiated UO2 for use in plutonium discrimination nuclear forensics". United States. doi:10.1007/s10967-019-06486-w.
@article{osti_1510324,
title = {Measuring key Sm isotope ratios in irradiated UO2 for use in plutonium discrimination nuclear forensics},
author = {Glennon, Kevin J. and Osborn, Jeremy M. and Burns, Jonathan D. and Kitcher, Evans D. and Chirayath, Sunil S. and Folden, Charles M.},
abstractNote = {As part of an experimental validation of a nuclear forensics methodology for Pu source reactor-type discrimination, destructive analysis has been performed here on two irradiated UO2 pellets with different irradiation histories. Analysis has focused on measuring key Sm fission product isotope ratios used in a previously published maximum likelihood methodology to determine the most likely irradiation history of the pellets. A total of 21 Sm isotope ratios were measured within the irradiated pellets, and generally agreed within 20% of the irradiations as simulated using the Monte Carlo Radiation Transport and material depletion code, MCNP6. Results indicate the chosen approach can accurately measure the isotope ratios within 5% experimental error.},
doi = {10.1007/s10967-019-06486-w},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 2,
volume = 320,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
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This content will become publicly available on April 5, 2020
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