Formation regularities of secondary electrons spectrum while interacting heavy-current electric beam with gases

Abstract

The modern methods of obtaining rare earth metals are based on fluoride technologies, a final stage of which is the recovery of clean elements from fluoride compounds. The methods of such recovery used now are bound both to problems of an ecological nature, and to high power inputs. The search for optimum effective and safety technological solutions has led in particular to high-current electric beams (HCEB). A HCEB is provided by high performance of energy transformation both when generating the beam and when interacting. When fast particles of the beam brake the process of ionization, high-energy secondary electrons are generated. In turn, under thermalization form, new electrons generate rather a large number of epithermal electrons. At low ionicity of all nonequilibrium systems as a whole, the main mechanism of a recombination of free electrons apparently is the dissociative recombination, as a result of which recovery of clean metal takes place. The results of experiments confirm a principled capability of passing processes according to the described scheme. The performance of complex researches of influencing processes mechanism in a system "HCEB-fluoride of metal" will allow elaboration of theoretical and technological fundamentals of systems of beam chemical technology.