Waste management strategies for fusion materials

Management aspects of fusion waste are presented. Conditioning and packaging of tritiated waste must cope with the high mobility of tritium. The first required treatment is immobilization of the waste in solid matrices. Additional barriers against tritium migration are provided by encapsulating layers. Packaging is afforded by single or double-walled structures. Low activation materials (LAMs) are being developed to simplify the management of fusion activated waste. Interim storage of this waste is envisaged at the plant site, then various options are possible, depending on the residual radioactivity levels, i.e. declassification to non-active-waste, recycling, disposal. (orig.)