Abstract
The dependence of the intensities of atomic lines and molecular bands emitted in the afterglow of a helium discharge on the electron temperature is used to identify the processes in which states of He⋆ and He *2 are populated. It is established that the formation of He* atoms (n = 3, 4) in decaying helium plasma occurs principally on account of the associative recombination of vibrationally excited He +2 ions and electrons. Analysis of the experimental reuslts leads to the conclusion that the distribution of the molecular ions He +2 over vibrational states is strongly nonequilibrium.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 67–72, February, 1984.
It remains to thank N. P. Penkin for discussions and for his interest in the work.
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Ivanov, V.A., Skoblo, Y.É. Recombination channels of molecular ions He +2 and electrons. Soviet Physics Journal 27, 144–148 (1984). https://doi.org/10.1007/BF00900135
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DOI: https://doi.org/10.1007/BF00900135