Abstract
The emission of a low-pressure helium plasma (P≤2 Torr) initiated by a monochromatic electron beam is investigated. It is found that an increase in the current leads to a drastic increase in the rate of charge exchange of doubly charged helium ions. The assumption is made that inelastic collisions of He++ ions with metastable helium atoms provide the main channel of charge exchange of these ions due to the reaction He+++Hem→ He+*+He +0 .
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Translated from Optika i Spektroskopiya, Vol. 97, No. 2, 2004, pp. 181–185.
Original Russian Text Copyright © 2004 by Zhigalov, Piotrovskii, Tolmachev.
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Zhigalov, O.V., Piotrovskii, Y.A. & Tolmachev, Y.A. Specific features of the excitation spectrum of helium II in a plasma initiated by an electron beam. Opt. Spectrosc. 97, 167–171 (2004). https://doi.org/10.1134/1.1790631
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DOI: https://doi.org/10.1134/1.1790631