Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 311, Issue 1, Pages 801-808Publisher
SPRINGER
DOI: 10.1007/s10967-016-5099-4
Keywords
Multi-collector inductively-coupled plasma mass spectrometry; Spent nuclear fuel; Chromatography; Nd and Sm isotopic ratios; Nuclear forensics
Funding
- Domestic Nuclear Detection Office (DNDO) [HSHQDC-10-X-00652]
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Rare earth elements such as neodymium and samarium are ideal for probing the neutron environment that spent nuclear fuels are exposed to in nuclear reactors. The large number of stable isotopes can provide distinct isotopic signatures for differentiating the source material for nuclear forensic investigations. The rare-earth elements were isolated from the high activity fuel matrix via ion exchange chromatography in a shielded cell. The individual elements were then separated using cation exchange chromatography. The neodymium and samarium aliquots were analyzed via MC-ICP-MS, resulting in isotopic compositions with a precision of 0.01-0.3%.
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