|
This article is cited in 2 scientific papers (total in 2 papers)
Spectroscopy and physics of atoms and molecules
Helium afterglow without metastable particles
V. A. Ivanov, Yu. È. Skoblo St. Petersburg State University, 198504, St. Petersburg, Russia
Abstract:
We study the afterglow of a pulsed barrier discharge in helium with a small admixture of neon (10$^{-2}$%), which creates a plasma with a low density of metastable particles. The early afterglow of this discharge is free of processes involving the participation of metastable particles and has a purely recombination nature. The characteristics of the afterglow are interpreted based on a model taking into account vibrational kinetics and dissociative recombination of He$_{2}^{+}$ molecular ions. Comparison of experimental data and model solutions for fluxes of collisional–radiative recombination of He$^+$ ions with electrons and dissociative recombination leads to the conclusion that the latter process is more likely to be a source of the formation of excited atoms.
Keywords:
helium discharge afterglow, metastable atoms, dissociative recombination.
Received: 08.05.2019 Revised: 25.07.2019 Accepted: 12.08.2019
Citation:
V. A. Ivanov, Yu. È. Skoblo, “Helium afterglow without metastable particles”, Optics and Spectroscopy, 127:6 (2019), 890–894; Optics and Spectroscopy, 127:6 (2019), 962–966
Linking options:
https://www.mathnet.ru/eng/os512 https://www.mathnet.ru/eng/os/v127/i6/p890
|
Statistics & downloads: |
Abstract page: | 28 |
|