Potential defect structure effects in the volatility separation of sub-picogram quantities of fission and activation products from an irradiated UO2 matrix
| Autor: | Samuel S. Morrison, Bruce Pierson, Bruce K. McNamara |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Isotope Fission Health Toxicology and Mutagenesis Radiochemistry Public Health Environmental and Occupational Health Oxide 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry Matrix (chemical analysis) chemistry.chemical_compound Nuclear Energy and Engineering chemistry Neutron source Radiology Nuclear Medicine and imaging Irradiation Volatility (chemistry) Spectroscopy Burnup |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 327:21-30 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | The use of fluorination as a rapid separation technique for quantification of trace-mass, short-lived isotopes is illustrated. Single crystal 238UO2 was exposed to a 14 MeV neutron source to produce mixed fission and activation products. Selective removal of trace volatile fluorides from non-volatile ones produced two results of interest. A decrease in background produced better detection and quantification of select analytes across the gamma spectrum. Second, at the very low burnup condition described, the volatility behaviors of common isotopes were altered relative to their well-established behaviors in higher burnup metal and metal oxide fuels. |
| Databáze: | OpenAIRE |
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