Abstract
Helium-plasma radiation stimulated in a longitudinal pulsed discharge with preionization (PHe=30–350 torr, U=10–15 kV, I ∼ 1 kA) has been studied. Two broad bands with λ=370 and 600 nm were detected in the region λ = 230–800 nm. Helium-plasma relaxation processes were considered. It was found that an important role in the formation of excited states of helium molecules can be played by Penning processes, which lead to the effective formation of atomic and molecular helium ions in the plasma. What excited states are responsible for the broadband radiation in the region, however, remains an open question.
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V. D. Kuznetsov Siberian Physicotechnical Institute, Tomsk State University. Translated from Izvestiya Vysshik Uchebnykh Zavedenii, Fizika, No. 11, pp. 20–29, November, 1992.
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Kurov, V.S., Chernikova, E.V. & Yancharina, A.M. Molecular radiation in recombining helium plasma. Russ Phys J 35, 1012–1019 (1992). https://doi.org/10.1007/BF00559095
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DOI: https://doi.org/10.1007/BF00559095