The approach for the performance assessment for a high level radioactive waste repository in Korea

Korea Atomic Energy Research Institute (KAERI) has developed the preliminary disposal concept for high level wastes (HLW) and subsequent total system performance assessment tools. Three major areas currently pursued by KAERI are FEP and scenario development, code development on probabilistic safety assessment, and total system performance assessment (TSPA) for the preliminary disposal concept with generic geologic data. Throughout this project, the TSPA code MASCOT-K has been developed and applied for the assessment. Preliminary results show that the current concept would satisfy the safety target for the scenario of normal release of radionuclides into the man-made and geologic medium. (author)