The influence of a powerful stream of deuterium ions and deuterium plasma on the structural state of the surface layer of titanium

Abstract

The effect of a high-power pulsed flow of deuterium ions and deuterium plasma generated in a plasma focus setup on the surface structure of a Ti plate was investigated. It was established that, depending on the radiation-thermal conditions on the surface, three zones with different surface morphology, structure, and defects were formed in the surface layer irradiated. The peculiarities of the surface damage in the center of the irradiated region of the Ti target exposed to the most severe radiation (power density of the ion and plasma flows of q_i ≈ 10¹¹–10¹² and q_p ≈ 10⁹–10¹⁰ W/cm², respectively) were studied, as well as those for the peripheral region exposed to softer radiation.