Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS
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- 作者：B. H. Isselhardt ; M. R. Savina ; A. Kucher…
- 关键词：Resonance ionization mass spectrometry ; Nuclear forensics ; Plutonium ; Isotope ratios ; Laser post ; ionization
- 刊名：Journal of Radioanalytical and Nuclear Chemistry
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：307
- 期：3
- 页码：2487-2494
- 全文大小：899 KB
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- 作者单位：B. H. Isselhardt (1) <br> M. R. Savina (1) (2) <br> A. Kucher (1) <br> S. D. Gates (1) <br> K. B. Knight (1) <br> I. D. Hutcheon (1) <br><br>1. Lawrence Livermore National Laboratory, 7000 East Ave., L-231, PO Box 808, Livermore, CA, 94551, USA <br> 2. Argonne National Laboratory, 9700 South Cass Ave., Argonne, IL, 60439, USA <br>
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry<br>Nuclear Chemistry<br>Physical Chemistry<br>Nuclear Physics, Heavy Ions and Hadrons<br>Diagnostic Radiology<br>Inorganic Chemistry<br>
- 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
- ISSN：1588-2780
文摘
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 %. The minor isotope 238Pu was also quantified despite the presence of a significant quantity of 238U in the samples.