Abstract
Elementary processes in dusty, beam-driven plasma discharges are studied experimentally and theoretically for the first time. A theoretical model is constructed for a beam-driven plasma containing macroscopic particles. The effect of macroscopic particles on the electron energy distribution function is estimated assuming a Coulomb field for the particles. The resulting rate of electron-ion recombination on the macroscopic particles is compared with the electron loss constant calculated from the electron energy distribution function with an electron absorption constant in the orbital-motion approximation. This approximation, which is valid in the collisionless case, is found to work satisfactorily beyond its range of applicability. The distributions of the charged particles and electric fields created by macroscopic particles in a helium plasma are determined. The experimental data demonstrate the importance of secondary emission by high-energy electrons.
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Zh. Éksp. Teor. Fiz. 115, 2020–2036 (June 1999)
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Ivanov, V.V., Rakhimova, T.V., Serov, A.O. et al. Effect of a dust component on the rates of elementary processes in low-temperature plasmas. J. Exp. Theor. Phys. 88, 1105–1114 (1999). https://doi.org/10.1134/1.558899
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DOI: https://doi.org/10.1134/1.558899