Separation of Lanthanide Isotopes from Mixed Fission Product Samples
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Atomic Weapons Research Establishment (AWRE), Aldermaston (United Kingdom)
The measurement of radioactive fission products from nuclear events has important implications for nuclear data production, environmental monitoring, and nuclear forensics. In a previous paper, the authors reported the optimization of an intra-group lanthanide separation using LN extraction resin from Eichrom Technologies®, Inc. and a nitric acid gradient. In this work, the method was demonstrated for the separation and quantification of multiple short-lived fission product lanthanide isotopes from a fission product sample produced from the thermal irradiation of highly enriched uranium. The separations were performed in parallel in quadruplicate with reproducible results and high decontamination factors for 153Sm, 156Eu, and 161Tb. Based on the results obtained here, the fission yields for 144Ce, 153Sm, 156Eu, and 161Tb are consistent with published fission yields. This work demonstrates the effectiveness of the separations for the intended application of short-lived lanthanide fission product analysis requiring high decontamination factors.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1821200
- Report Number(s):
- PNNL-SA-162239
- Journal Information:
- Separations, Vol. 8, Issue 7; ISSN 2297-8739
- Publisher:
- MDPICopyright Statement
- Country of Publication:
- United States
- Language:
- English
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