Theoretical investigation of liquid metal MHD free SUrface flows for alps

摘要

Free surface plasma facing components (PFCs) offer the potential to solve the lifeting issues limiting current solid surface designs for tokamak fusion reactors by eliminating the problems of erosion and thermal stresses accompanying solid surface designs. The moving PFC free surfaces provide the possibility of absorpbing impurities and possibly helium for removal ouside of the plasma chamber. Free surface PFCs may also offer more creative possibilities for heat removal and higher thermal conversion efficiencies for the entire system. Design requirements for PFCs include handling approx 5 percent of the plasma heat flux and approx 90 percent of the ion flux.