Analysis of applicability of triplet-state emission of molecular hydrogen for spectral diagnostics of a DC discharge
- Авторы: Shakhatov V.1, Lebedev Y.1
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Учреждения:
- Topchiev Institute of Petrochemical Synthesis
- Выпуск: Том 43, № 10 (2017)
- Страницы: 1016-1030
- Раздел: Low-Temperature Plasma
- URL: https://journals.rcsi.science/1063-780X/article/view/186258
- DOI: https://doi.org/10.1134/S1063780X17100038
- ID: 186258
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Аннотация
The applicability of emission of the N3Λσ triplet states of molecular hydrogen for spectral diagnostics of the positive column of a dc glow discharge in hydrogen at translational gas temperatures of 360–600 K, specific absorbed powers of 0.8–4.25 W/cm, gas pressures of p = 0.3–15.0 Torr, reduced fields of E/N = 30–130 Td, and electron densities of ne = 4.0 × 109–6.5 × 1010 cm–3 is analyzed by using an advanced level-based semi-empirical collisional−radiative model. It is found that secondary processes make the main contribution to the population and decay of the N3Λσ = a3Σ+g, c3Πu, g3Σ+g, h3Σ+g, and i3Πg triplet states. The dipole-allowed transitions e3Σ+g → a3Σ+g, f3Σ+g → a3Σ+g, g3Σ+g and k3Πu → a3Σ+g can be used for spectral diagnostics of a dc discharge within a simplified coronal model.
Об авторах
V. Shakhatov
Topchiev Institute of Petrochemical Synthesis
Автор, ответственный за переписку.
Email: shakhatov@ips.ac.ru
Россия, Moscow, 117912
Yu. Lebedev
Topchiev Institute of Petrochemical Synthesis
Email: shakhatov@ips.ac.ru
Россия, Moscow, 117912