Isotope effect of transport and key physics in the isotope mixture plasmas

Abstract

AbstractThe isotope effect of transport and key physics in isotope mixture plasmas is reviewed. Experiment, simulation, and theory discuss isotope mass dependence on confinement, transport, and turbulence. Experimental observation shows a wide variety of isotope mass dependence, due to the complicated process of determining the plasma confinement and transport and far from the simple mass dependence predicted by the gyro-Bohm model. The isotope effect directly influences the growth rate of instability and thermal diffusivity and indirectly influences confinement and transport property through other parameters. The isotope mixing is also described as key physics of isotope mixture plasma, essential to optimize fusion power in deuterium and tritium plasma.