ABSTRACT

The leading proposal for the containment of high-level radioactive waste for geological time spans is to incorporate it into a compact solid form. A class of material which offers one of the best chances to accomplish this difficult feat is glass. In assessing the suitability of candidate glasses for this application, the main criterion is the stability of the structure and the chemistry of the glass under internal irradiation exposure from decay of the radioactive isotopes. In this final, short chapter we summarize briefly the effects of radiation on glasses and describe briefly a new and promising technique by which radiation damage in amorphous materials can be studied in the transmission electron microscope.