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- Title
Local Plasma Parameters, Atom Concentrations, and Absolute Luminescence Intensities in the Discharge Supported by a Hollow Cathode.
- Authors
Andreev, S. N.; Bernatskiy, A. V.; Draganov, I. I.; Kochetov, I. V.; Ochkin, V. N.
- Abstract
Local measurements of the parameters of the electronic component, the space potential, and the absolute luminosities of the nonequilibrium discharge plasma in wet low-pressure helium supported by the hollow cathode are performed. The concentrations of helium and hydrogen atoms in the ground states are determined from the intensities of the transition lines between the excited levels using the coronal model (CM), which takes into account the branching of electronic transitions from the excitation levels of atoms and the final optical density of the plasma. It is shown that the proposed refinement of the CM under these conditions makes it possible to select a number of spectral lines that allow one to determine the concentrations of helium atoms in the ground state by measuring the absolute intensities of electronic transition radiations. The possibility of using correlations of the calculated temperature of electrons with the effective temperatures of population and distribution of excited atoms is considered.
- Subjects
GLOW discharges; NONEQUILIBRIUM plasmas; HELIUM atom; PLASMA density; LUMINESCENCE; CATHODES; HYDROGEN atom
- Publication
Plasma Physics Reports, 2022, Vol 48, Issue 11, p1273
- ISSN
1063-780X
- Publication type
Article
- DOI
10.1134/S1063780X22601043