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Эта публикация цитируется в 2 научных статьях (всего в 2 статьях)
Спектроскопия и физика атомов и молекул
On the selectivity of population of the neon excited levels in the decaying $\mathrm{He}$–$\mathrm{Ne}$ plasma
V. A. Ivanov, Yu. E. Skoblo St. Petersburg State University, 198504 St. Petersburg, Russia
Аннотация:
The results of a spectroscopic study of the afterglow of a pulsed discharge in a $\mathrm{He}$–$\mathrm{Ne}$ mixture are presented, showing the unique selective population of the upper level of the $2p^{5}4p$ configuration ($3p_{1}$ in Paschen's notation) of a neon atom at a helium pressure of tens of Torr. The main measurements were conducted under conditions of competition between the excitation transfer from metastable He atoms $(2^{1}S_{0})$ and the dissociative recombination of $\mathrm{He}$–$\mathrm{Ne}^{+}$ ions with electrons as sources of excited atoms. Helium pressure $P_{\mathrm{He}}\approx0.08-20$ Torr, neon $P_{\mathrm{Ne}}\approx0.0005-0.003$ Torr, the electron density $[e]<10^{11}$ cm$^{-3}$. The results of the experiment indicate the existence of a mechanism that forms with an increase of helium pressure such a distribution of populations over $2p^{5}4p$ levels, in which more than $60\%$ of the radiation flux of
$2p^{5}3s\leftarrow 2p^{5}4p$ transitions is concentrated in one spectral line of $352.0$ nm.
Ключевые слова:
helium-neon plasma, excitation transfer, heteronuclear ions, dissociative recombination.
Поступила в редакцию: 20.05.2019 Исправленный вариант: 20.05.2019 Принята в печать: 08.07.2019
Образец цитирования:
V. A. Ivanov, Yu. E. Skoblo, “On the selectivity of population of the neon excited levels in the decaying $\mathrm{He}$–$\mathrm{Ne}$ plasma”, Оптика и спектроскопия, 127:5 (2019), 757; Optics and Spectroscopy, 127:5 (2019), 820–824
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/os547 https://www.mathnet.ru/rus/os/v127/i5/p757
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