Study on Surface Temperature of Inner Wall in Hall Thruster

The surface temperature of the inner wall of Hall thruster has been studied by the theoretical model. The equation for the time evolution of the surface temperature is presented. The model includes the plasma irradiation, the energy radiation loss and the energy diffusion by the thermal conductivity. It is also considered the dependence on the temperature for the thermal conductivity. The time evolution of the surface temperature for Hall thruster is calculated by Runge-Kutta method, and the effect of the temperature dependence for the thermal conductivity is investigated.