Releases rates of radionuclides through a porous material-filled borehole in a radioactive waste repository

The safety of radioactive waste disposal has become more and more important. So far many safety assessment studies have been conducted mainly focusing on the normal release scenario. While previous safety assessments under normal release scenario have shown that the repository is sufficiently safe, there have still been arguments on the safety of the geologic repository. Thus, it is primarily important to show the safety of the repository even under very severe accidents. A likely accident in the repository may be a human intrusion into the repository. The most probable form of human intrusion is the drilling of a borehole penetrating the repository