A model for intrusion dose calculations for radioactive waste disposal sites

Safe management and disposal of radioactive waste is one of the main problems for nuclear energy, both for fission or fusion sources. High-level waste from nuclear reactors will have to be disposed of in deep underground repositories. The main purpose of this disposal, from the safety viewpoint, is to avoid the return of the radioactive waste into the biosphere, with possible interaction with the public. Intrusion is a way by which this could occur, that is, public inadvertent intrusion into a repository site, taking place after the site has lost its institutional control. The authors describe the assessment of a model for intrusion into a radioactive waste disposal site. An example of application to a fusion-specific repository, developed as part of the Safety and Environmental Assessment of Fusion Power (SEAFP)-2 activities, will be given, up to the evaluation of doses to the inadvertent intruder