Radiation Damage Limitations in the Design of the Wisconsin Tokamak Fusion Reactor

Abstract
A detailed analysis of the radiation damage problems to be expected in a specific D-T fueled fusion reactor has been conducted. The system examined is the 5000-MW(th) University of Wisconsin Tokamak reactor (UWMAK), which is constructed of 20% cold-worked Type-316 stainless steel and operated at a maximum temperature of 500°C and a neutron wall loading of 1.25 MW/m2. The major radiation damage problem appears to be the loss in ductility; that is, the uniform elongation of the Type-316 stainless steel in the UWMAK-I first wall may fall to 2, respectively.