THE SECOND SAUDI INTERNATIONAL CONFERENCE ON NUCLEAR POWER ENGINEERING (SCOPE-2)

The revitalization of the Radioisotope and Radiopharmaceutical Technology Facility (ITRR) is a critical step toward strengthening the domestic production of radioisotopes in Indonesia. Previously operated by the Indonesian Nuclear Industry (INUKI), the facility has been transferred to the National Research and Innovation Agency (BRIN) for rehabilitation following years of inactivity and contamination. This study implements a structured risk management framework based on ISO 31000:2018 and SNI 8615:2018 to identify and assess risks associated with the revitalization process. Radiological impacts are assessed based on IAEA Safety Report Series No. 77, while non-radiological risks are evaluated using national standard SB 006-1-BATAN:2019. Fault Tree Analysis (FTA) identifies eight primary risk causes, while the Hazard and Operability Study (HAZOP) reveals 18 detailed risks across operational domains. Each identified risk is addressed with a corresponding safety measure to mitigate its impact.
To support decision-making for cost planning, Monte Carlo Simulation is applied to estimate contingency costs related to decontamination, dismantling, and supporting facility maintenance. Using Oracle Crystal Ball, the simulation produces a mean contingency cost of IDR 21.7 billion, with a 90th percentile maximum of IDR 23.6 billion. These figures correspond to 5.04%–14.10% of the initial revitalization budget, providing a robust financial buffer against identified risks. This integrated approach demonstrates the value of combining qualitative and quantitative risk assessment tools to enhance project safety and financial predictability. The methodology and findings offer a replicable model for similar nuclear facility revitalization projects and reinforce the importance of proactive risk management in achieving sustainable outcomes in the nuclear energy sector.