Protection against Sabotage of Nuclear Facilities: Using Morphological Analysis in Revising the Design Basis Threat

The Swedish Nuclear Power Inspectorate (SKI) is the regulatory authority for nuclear activities in Sweden. It is responsible for the development of a Design Basis Threat (DBT), as a basis for regulations on Physical Protection of Nuclear Material and Nuclear Facilities. SKI has recently revised its regulations concerning Physical Protection of Nuclear Facilities. The starting point for this task was to review the existing DBT. To accomplish this, SKI chose to use the method of morphological analysis (MA) as a tool to structure and analyse the problem, in order to arrive at a realistic DBT. The work was done with the help of the Swedish National Defence Research Agency (FOI). FOI has developed a computerised laboratory in which alternative scenarios can be formulated, developed, tested and evaluated. This paper will describe how MA was employed in developing scenarios and how the results of the work were used to revise the DBT. [For more information on how Morphological Analysis was employed at SKI, see the other article presented at the INMM Meeting: “Nuclear Facilities and Sabotage: Using Morphological Analysis as a Scenario and Strategy Development Laboratory”: www.swemorph.com/downloads.html.]