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Title: Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS

Resonance ionization mass spectrometry (RIMS) holds the promise of rapid, isobar-free quantification of actinide isotope ratios in as-received materials (i.e. not chemically purified). Recent progress in achieving this potential using two Pu test materials is presented. RIMS measurements were conducted multiple times over a period of two months on two different Pu solutions deposited on metal surfaces. Measurements were bracketed with a Pu isotopic standard, and yielded absolute accuracies of the measured 240Pu/ 239Pu ratios of 0.7% and 0.58%, with precisions (95% confidence intervals) of 1.49% and 0.91%. In conclusion, the minor isotope 238Pu was also quantified despite the presence of a significant quantity of 238U in the samples.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-674877
Journal ID: ISSN 0236-5731; TRN: US1600407
Grant/Contract Number:
AC52-07NA27344; AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 307; Journal Issue: 3; Journal ID: ISSN 0236-5731
Publisher:
Springer
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 11 NUCLEAR FUEL CYCLE AND RUEL MATERIALS; Resonance ionization mass spectrometry; Nuclear forensics; Plutonium; Isotope ratios; Laser postionization Introduction
OSTI Identifier:
1241996

Isselhardt, B. H., Savina, M. R., Kucher, A., Gates, S. D., Knight, K. B., and Hutcheon, I. D.. Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS. United States: N. p., Web. doi:10.1007/s10967-015-4393-x.
Isselhardt, B. H., Savina, M. R., Kucher, A., Gates, S. D., Knight, K. B., & Hutcheon, I. D.. Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS. United States. doi:10.1007/s10967-015-4393-x.
Isselhardt, B. H., Savina, M. R., Kucher, A., Gates, S. D., Knight, K. B., and Hutcheon, I. D.. 2015. "Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS". United States. doi:10.1007/s10967-015-4393-x. https://www.osti.gov/servlets/purl/1241996.
@article{osti_1241996,
title = {Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS},
author = {Isselhardt, B. H. and Savina, M. R. and Kucher, A. and Gates, S. D. and Knight, K. B. and Hutcheon, I. D.},
abstractNote = {Resonance ionization mass spectrometry (RIMS) holds the promise of rapid, isobar-free quantification of actinide isotope ratios in as-received materials (i.e. not chemically purified). Recent progress in achieving this potential using two Pu test materials is presented. RIMS measurements were conducted multiple times over a period of two months on two different Pu solutions deposited on metal surfaces. Measurements were bracketed with a Pu isotopic standard, and yielded absolute accuracies of the measured 240Pu/239Pu ratios of 0.7% and 0.58%, with precisions (95% confidence intervals) of 1.49% and 0.91%. In conclusion, the minor isotope 238Pu was also quantified despite the presence of a significant quantity of 238U in the samples.},
doi = {10.1007/s10967-015-4393-x},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 3,
volume = 307,
place = {United States},
year = {2015},
month = {9}
}