Electromagnetic loads on ITER in-vessel components

Design of the vacuum vessel and internal blanket/shield modules for the International Thermonuclear Experimental Reactor (ITER) is strongly influenced by the magnitude of electromagnetic loads due to plasma disruption. Calculations with the finite element code, EddyCuFF, have been performed to quantify these loads and incorporate them into the design process. A multifilament model of plasma motion and current decay has been developed using data generated by the Tokamak Simulation Code (TSC). Comparison with calculations employing single filament plasma models illustrates the need to use self-consistent, distributed plasma scenarios when analyzing toroidally segmented components. Application is made to design and analysis of the high aspect ratio design (HARD) option vessel and blanket/shield modules. Variations in geometry, response characteristics, and electromagnetic loads are compared to the reference design values.