Computing Physical Security System Effectiveness at Commercial Reactors

The use of advanced security technologies, such as modeling and simulation in support of vulnerability assessment, has continued to find acceptance in both the operator and the regulatory realms. A critical component to gaining acceptance for modeling and simulation is employing a proven analysis process using best practices and proven tools. These processes and tools allow security managers to be responsive to changing threats and management/financial constraints by quantifying a site’s level of security under different attack scenarios and defensive configurations. Based on best practices and performance data from government agencies, modeling and simulation experts have proposed a process to compute security system effectiveness for commercial nuclear sites. This process will allow decision makers to use a risk-informed approach to quantify security risk at their sites. This also includes a formal accreditation and review process that will provide decision makers and regulators confidence into the development of the defense strategy. Providing a consistent means to assess security, using government-provided or other agreed-upon performance data, will allow sites to compare new and more cost-effective strategies directly with existing/approved strategies to perform a cost-benefit analysis and return on investment estimate.