Pink splash of active nitrogen in the discharge afterglow |
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Authors: | Yu. S. Akishev M. E. Grushin V. B. Karal’nik A. V. Petryakov N. I. Trushkin |
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Affiliation: | (1) Troitsk Institute for Innovation and Fusion Research, Troitsk, Moscow oblast, 142190, Russia |
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Abstract: | Results are presented from experimental studies of the glow dynamics of active nitrogen in the stage of its excitation by a current pulse and during the discharge afterglow. The mechanism is proposed for the generation of a light splash in a highly activated nitrogen after the end of its pulsed excitation. The key role in the generation of this splash is played by the D-V processes, by which the dissociation energy is transferred to the vibrational degrees of freedom in the course of recombination of nitrogen atoms, and the V-E processes, by which the vibrational energy of highly excited molecules N2(X, v ≥ 25–27) is transferred to the emitting electronic states N2(B, v) after the V-V delay. Results of simulations based on the mechanism proposed are also presented. |
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