THE MODELING OF ADVERSARY ACTION FOR SAFEGUARDS EFFECTIVENESS ASSESSMENT

In the procedure for the assessment of material control systems being developed at Lawrence Livermore Laboratory, one of the major requirements is the systematic development of adversary action sequences and stimuli. Stimuli refer to the disturbances in state or process variables that occur as the result of adversary activity, such as diversion or concealment activities. This paper presents an approach to generate adversary action sequences on the basis of graph theory and fault tree analysis. The resulting stimuli can then be generated from these sequences.