Abstract
The results of a spectroscopic study of the afterglow of a pulsed barrier discharge in helium with a small admixture of neon, which creates a plasma with a low density of metastable particles, are discussed. The early stage of the afterglow of such a discharge is free of processes involving metastables and has a purely recombination nature. The characteristics of the afterglow are interpreted on the basis of the model taking into account vibrational kinetics and dissociative recombination of molecular ions. A comparison of experimental data and model solutions for collisional-radiative recombination of atomic ions and dissociative recombination leads to the conclusion in favor of the latter process as a source of the excited atoms.
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