Abstract
For the major isotope abundance measurements of plutonium, uranium, and americium, the total evaporation technique yields data with best precision and accuracy characteristics. However, minor isotope abundance measurements using this technique are biased higher due to peak tailing effects. We investigate whether the tailing corrections at the minor isotopes are large enough to shift the major isotope abundance values outside the ITV-2010 values, which are routinely used as pass/fail criteria in proficiency test programs. Measured data in a plutonium sample, a uranium sample, and a uranium separate (from decay of Pu isotopes) is investigated. LA-UR-22–22,282.
Original language | English |
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Pages (from-to) | 4873-4879 |
Number of pages | 7 |
Journal | Journal of Radioanalytical and Nuclear Chemistry |
Volume | 331 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2022 |
Externally published | Yes |
Funding
Discussions with colleagues L. Tandon (LANL) A. Olson (LANL), P. Mason (NBL PO), F. Stanley (LLNL), S. Richter (IRMM), and B. Srinivasan (Office of Science, Chicago) are greatly appreciated. Two anonymous reviewers are thanked for their thorough and helpful comments. Authors have no conflict of interest to declare. All co-authors have seen and agree with the contents of the manuscript.
Keywords
- Correlation effects in isotopic abundances
- Proficiency testing
- Thermal ionization mass spectrometry
- Total evaporation