Feasibility of L/ILW fission waste repository concepts for fusion waste

This paper discusses the feasibility of a low and intermediate level fission waste (L/ILW) repository, similar to those operating in Finland, for final disposal of fusion waste. Radiotoxicity concentrations in a postulated drinking water well are calculated. The near-field model is a simple sorption model with an anticipated water-backfilling ratio—the real waste package and layout configuration in a future repository is not addressed. In the far-field model the dilution of groundwater, as well as sorption and matrix diffusion in the bedrock fractures are considered. The study implies the repository concept is feasible for a major part of the fusion waste, once a few uncertainties are resolved.