Quasi-equilibrium spectrum of free electrons forming at thermalization of a nonrelativistic beam in molecular gas

The study of pulse beams influence on molecular gases is of large scientific and practical interest. It is connected with a great variety of plasma and chemical phenomena occurring in gas, under the influence of a beam. One of processes occurring in "system of pulse beam of electron-the molecular gas" is molecular dissociation. The latter finds a practical application in perspective process flow sheet of recovery of metals from gaseous fluoride compounds. At rather low concentration of free electrons arising while interaction of a beam with gas the basic process is their dissociative recombination on molecular ions. Kinetics of this process, and consequently also kinetics of recovery of metal in many respects is conditioned by the regularities of formation and evolution of a spectrum of free electrons, the research of which is the aim of the given paper. In the report the results of calculation of a quasi-equilibrium spectrum of free electrons forming at a thermalization of a nonrelativistic beam in air are considered.