Ion-driven permeation of deuterium through tungsten under simultaneous helium and deuterium irradiation

Abstract Ion-driven permeation of D through tungsten under simultaneous irradiation with He–D was measured as a function of temperature, flux, and energy. He reduced the permeation flux with the reduction increasing with decreasing temperature. The reduction in permeation flux followed a linear dependence to the incident flux at T > 1000 K, but shifted to a square root dependence at T