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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2019, Volume 110, Issue 10, Pages 652–657
DOI: https://doi.org/10.1134/S0370274X1922003X
(Mi jetpl6045)
 

This article is cited in 6 scientific papers (total in 6 papers)

OPTICS AND NUCLEAR PHYSICS

Emission of molecular nitrogen upon electron bombardment of pyrolytic aerogel SiO$_2$ and aluminum

M. V. Zavertyaeva, V. A. Kozlova, N. V. Pestovskiia, A. A. Petrova, A. A. Rodionova, S. Yu. Savinova, S. N. Tskhaia, Yu. D. Zavartsevb, A. I. Zagumennyib, S. A. Kutovoib

a Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 Russia
b Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, 119991 Russia
Full-text PDF (946 kB) Citations (6)
References:
Abstract: It is found that the emission intensity of the $2^+$ band system of the N$_2$ molecule (C$^{3}\Pi_{u} \to \text{B}^{3}\Pi_{g}$ transition) under electron bombardment of pyrolytic aerogel SiO$_2$ in air at atmospheric pressure is $40$$70$% higher than that in the case of bombardment of aluminum under the same conditions. The dependences of the emission intensity at $337$ nm (0-0 vibrational transition in the $2^+$ band system of the N$_2$ molecule) on the target temperature in the range of $30$$60^\circ$ C are different for the aluminum and SiO$_2$ targets, which indicates different excitation mechanisms of the N$_2$(C$^3\Pi_u$) state. It is suggested that when the SiO$_2$ target is bombarded, the N$_2$(C$^3\Pi_u$) state is excited not only by direct collisions with the electrons of the primary beam and secondary electrons, but also by the energy transfer from SiO$_2$ excitons and conduction electrons to N$_2$ molecules upon their contact with the SiO$_2$ surface.
Funding agency Grant number
Russian Science Foundation 19-79-30086
This work was supported by the Russian Science Foundation (project no. 19-79-30086).
Received: 21.08.2019
Revised: 01.10.2019
Accepted: 17.10.2019
English version:
Journal of Experimental and Theoretical Physics Letters, 2019, Volume 110, Issue 10, Pages 654–658
DOI: https://doi.org/10.1134/S0021364019220132
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. V. Zavertyaev, V. A. Kozlov, N. V. Pestovskii, A. A. Petrov, A. A. Rodionov, S. Yu. Savinov, S. N. Tskhai, Yu. D. Zavartsev, A. I. Zagumennyi, S. A. Kutovoi, “Emission of molecular nitrogen upon electron bombardment of pyrolytic aerogel SiO$_2$ and aluminum”, Pis'ma v Zh. Èksper. Teoret. Fiz., 110:10 (2019), 652–657; JETP Letters, 110:10 (2019), 654–658
Citation in format AMSBIB
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  • This publication is cited in the following 6 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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