The glow of Mg and Ca atoms when they interact with H atoms

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Abstract

During the evaporation of magnesium and calcium in partially dissociated H2, a glow with λ = 4571.15 Å and λ = 6572.78 Å was detected, corresponding to the transitions 3P10 → 1S0 in excited Mg* and Ca* atoms. It is assumed that this phenomenon is associated with the chemiluminescence of these atoms when they interact with H atoms.

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About the authors

V. I. Petinov

Federal Research Center of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences

Email: bogenko@icp.ac.ru
Russian Federation, Chernogolovka

V. M. Timin

Federal Research Center of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences

Email: bogenko@icp.ac.ru
Russian Federation, Chernogolovka

K. V. Bozhenko

Federal Research Center of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences

Author for correspondence.
Email: bogenko@icp.ac.ru
Russian Federation, Chernogolovka

A. N. Utenyshev

Federal Research Center of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences

Email: bogenko@icp.ac.ru
Russian Federation, Chernogolovka

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2. Fig. 1. Schematic diagram of the setup for studying the nature of the glow of excited Mg* and Ca* atoms during their interaction with partially dissociated hydrogen (see description in text).

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3. Fig. 2. Dependence of the size of the glow region of an excited atom on the hydrogen pressure.

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