1. He and Au ion radiation damage in sodalite, Na4Al3Si3O12Cl.
- Author
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Vance, Eric R., Gregg, Daniel J., Karatchevtseva, Inna, Davis, Joel, and Ionescu, Mihail
- Subjects
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HELIUM ions , *GOLD compounds , *RADIOLYSIS , *SODALITE , *SODIUM compounds , *X-ray diffraction - Abstract
Sodalite, a candidate ceramic for the immobilisation of pyroprocessing nuclear waste, showed no observable lattice dilatation in grazing incidence X-ray diffraction when irradiated with up to 1017 5 MeV He ions/cm². However micro-Raman scattering showed considerable spectral broadening characteristic of radiation damage near the end of the ~22 μm He range. Partial amorphism plus nepheline formation was observed in grazing incidence X-ray diffraction when sodalite was irradiated by 1016 12 MeV Au ions/cm². Nepheline appeared less susceptible to 12 MeV Au ion damage than sodalite, with ~25% less amorphous fraction at 1016 ions/cm². [ABSTRACT FROM AUTHOR]
- Published
- 2014
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