Sandia Pulse Reactor personnel dose reduction program

A personnel dose reduction and facility modernization program has resulted in a new appearance and new methods of operation at the Sandia Pulse Reactor (SPR) Facility. By making improvements in many diverse areas--the facility, facility support systems, the reactor stand, and administrative policies--a significant reduction (60%) in the overall personnel dose has been achieved. New support systems include a remotely controlled, chain-driven experiment retrieval device and a movable, 1.75-inch thick, lead shadow shield. The shadow shield attenuates the radiation field by factors of 10 or higher at normal positions occupied by personnel performing the tasks