Long-term safety of fission and fusion waste disposal

This study concerns the assessment of the long-term hazards associated both with fission and future fusion reactors, namely: intrusion in a fusion waste disposal site. This analysis was performed in t he frame of the SEAFP-2 studies of the European Fusion Technology Programme . intrusion in a fusion waste disposal site. In this case, data are taken fro m typical European waste disposal sites. long-term migration of radioactive nuclides due to natural waste package de gradation, for both fission and fusion reactor cases. In all relevant cases, evaluation of associated risks is carried out. A com parison of the obtained results permits to state that: intrusion is by far the most relevant source of public risk for radioactive waste disposal; fusion shows lower values of radiological hazard compared to that of fissio n; the evaluated risks are well below the acceptable risk limits and in good a greement with the results of other studies. (C) 2000 Elsevier Science B.V. All rights reserved.