A Closed-Loop Control System for a Plutonium Nitrate Storage and Loadout Area

A portion of a physical protection system utilizing closed-loop control of activities in the plutonium nitrate storage and loadout area of a nuclear fuel reprocessing plant was developed to protect against potential insider adversaries. A prototype computerized Closed-Loop Control System was constructed and tested at Sandia Laboratories and an operational system has been installed and is being evaluated at the Barnwell Nuclear Fuel Plant in South Carolina. Results of the evaluation to date indicate that the system is operationally feasible, .provides a significant increase in protection and assures more efficient operations.