Radiation Effects in Nuclear Waste Materials.

Weber, W. J. ; Wang, L. ; Hess, N. J. ; Icenhower, J. P. ; Thevuthasan, S.

Technical Information Center Oak Ridge Tennessee

关键词: Radioactive wastes;    Radiation effects;    Radioactive materials;    Waste forms;    Progress report;   

RP-ID  :  DE2004833738

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The objective of this project is to develop a fundamental understanding of radiation effects in glasses and ceramics, as well as the influence of solid-state radiation effects on aqueous dissolution kinetics. This study will provide the underpinning science to develop improved glass and ceramic waste forms for the immobilization and disposition of high-level tank waste, excess plutonium, plutonium residues and scrap, other actinides, and other nuclear waste streams. Furthermore, this study will develop predictive models for the performance of nuclear waste forms and stabilized nuclear materials. The research focuses on the effects of alpha and beta decay on defect production, defect interactions, diffusion, solid-state phase transformations, and dissolution kinetics. Plutonium incorporation, ion-beam irradiation, and electron-beam irradiation are used to simulate the effects of alpha decay and beta decay on relevant glasses and ceramics in experimental studies. Computer simulation methods are used to provide an atomic level interpretation of experimental data and continuum-level modeling.