RESEARCH ON THE APPLICATION OF NUCLEAR SECURITY EVENT RISK ASSESSMENT BASED ON FAULT TREE ANALYSIS METHOD

抄録

Since the 20th century, the world terrorist attacks, violent terrorist activities, extremist organization activities are increasing, the international community is facing the threat of nuclear terrorism and nuclear proliferation risk increasingly serious, anti-terrorism has become a regular trend. Digitalization and intelligentization have become the theme of today's era. With the continuous escalation of threats and risks, the security of nuclear materials and nuclear facilities is also facing new challenges. In order to better deal with threats and prevent and control risks, it is necessary to improve the technical level of risk analysis and assessment. This paper briefly describes the safety incidents of nuclear materials in various nuclear facilities and the significance of maintaining the safety of nuclear materials in nuclear facilities. Combined with the fault tree analysis method under risk management, this paper simulates the case of nuclear material theft and carries out event-based risk assessment and analysis. The analysis results show the effectiveness of this assessment method, which will provide technical support for the safety prevention of nuclear facilities and nuclear materials.