Photothermal microscopy applied to the characterization of nuclear fuel pellets
| Autor: | F. Zaldivar Escola, Oscar E. Martínez, Nelly Mingolo, Rodolfo Kempf |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Nuclear fuel Pellets Analytical chemistry Photothermal therapy Thermal diffusivity chemistry.chemical_compound Nuclear Energy and Engineering chemistry Histogram Microscopy Homogeneity (physics) Uranium oxide General Materials Science Biological system |
| Zdroj: | Journal of Nuclear Materials. 435:17-24 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/j.jnucmat.2012.12.014 |
| Popis: | The photothermal photodeflection technique is shown to provide information on the homogeneity of fuel pellets, pore distribution, clustering detection of pure urania and gadolinea and to provide a two-dimensional mapping of the thermal diffusivity correlated to the composition of the interdiffused Gadolinium and Uranium oxide. Histograms of the thermal diffusivity distribution become a reliable quantitative way of quantifying the degree of homogeneity and the width of the histogram can be used as a direct measure of the homogeneity. These quantitative measures of the homogeneity of the samples at microscopic levels provides a protocol that can be used as a reliable specification and quality control method for nuclear fuels, substituting with a single test a battery of expensive, time consuming and operator dependent techniques. |
| Databáze: | OpenAIRE |
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