Spectroscopy of He–Ne afterglow plasma

Journal Article · Wed Nov 15 04:00:00 EST 2017 · Optics and Spectroscopy

DOI:https://doi.org/10.1134/S0030400X17110091· OSTI ID:22786632

Ivanov, V. A. ^[1]; Petrovskaya, A. S. ^[2]

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1. St. Petersburg State University (Russian Federation)
2. L.L.C., Intro-Micro (Russian Federation)

The afterglow of pulsed low-current discharge in a He–Ne mixture is spectroscopically studied under conditions of competition between the processes of Ne{sub 2}{sup +} and HeNe{sup +} dissociative recombination with electrons, which are the sources of population of excited levels of neon atoms. The behavior of neon spectral lines in the wavelength range of 350–850 nm corresponding to the transitions from the levels of neon atoms of the 2p{sup 5}3p, 2p{sup 5}3d, 2p{sup 5}4p, 2p{sup 5}4d, 2p5{sup 5}s, 2p{sup 5}5d, 2p5{sup 6}s configurations are studied by the multichannel photoncounting method at electron density n{sub e} < 10{sup 11} cm{sup –3} and helium and neon pressures P{sub He} = 38 Torr and P{sub Ne} ≈ 10{sup -5}p{sub He} Distributions of recombination fluxes and population over excited states of the neon atom formed in the afterglow by homo- and heteronuclear ions are found. The data obtained show that vibrationally excited molecular ions make no noticeable contribution to the spectrum of decaying He–Ne plasma.

• OSTI ID: 22786632
• Journal Information: Optics and Spectroscopy, Journal Name: Optics and Spectroscopy Journal Issue: 5 Vol. 123; ISSN 0030-400X; ISSN OPSUA3
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AFTERGLOW
ATOMS
CONFIGURATION
DISTRIBUTION
ELECTRON DENSITY
ELECTRONIC STRUCTURE
ELECTRONS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HELIUM
MIXTURES
MOLECULAR IONS
NEON
PLASMA
RECOMBINATION
SPECTRA
SPECTROSCOPY
WAVELENGTHS