Blanket and shield design for a noncircular Tokamak experimental power reactor

Abstract The blanket of the noncircular fusion experimental power reactor converts the bulk of the energy produced in the fusion reaction into useful thermal energy, while the shield provides protection for the coil systems and a first line of biological shielding. Complex remote maintenance operations are minimized by utilizing a low exposure design. A modular blanket is fabricated from stainless steel and graphite, cooled by helium, and incorporates a silicon carbide liner to reduce the effects of sputtered impurities on the plasma. The segmented outboard shield contains removable lead-boron carbide blocks to combine effective shielding and low activity, while the spatially limited inboard shield incorporates laminated stainless steel-lithium hydride structure to protect the toroidal coils.