RISK-ANALYSIS OF NUCLEAR MATERIALS CONTROL FOR EXCLUSION OF UNAUTHORIZED NUCLEAR ACTIVITY

Abstract

The paper examines the conditions of nuclear materials (NM) security management at the sites of nuclear fuel cycle (NFC) from non-proliferation point of view. Applied to the non-proliferation the conditions for acceptable risk were defined. The basic levels of NM control have been set. On the base of acceptable risk concept the issues of risk management were considered. The task of unacceptable risk area suppression was formulated. Requirements to the NM control effectiveness were evaluated for various scenarios of undeclared activity (inside and outside of NFC). The role of the out-of-site control in creating NM protection in-depth was demonstrated.

Keywords

• detection probability
• in-site control
• out-of-site control
• significant quantity
• uranium enrichment
• technological modification of material
• diversion
• acceptable risk damage
• effectiveness of control
• nuclear non-proliferation
• nuclear materials