Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2020

Volume:

13

Number:

2

ISSN:

1829-1171

Official URL:

Coverage:

131-139

Abstract:

In our experiments it was shown that the modulation of the discharge by the current, which contains constant and variable components, leads to the transition of the plasma to a new state, which was called acoustoplasmic. In this new state, many parameters of acoustoplasma differ from the parameters of the plasma when it is supplied with direct current. In the plasma of the positive glow discharge column the electron concentration is determined by the parameters of the external circuit and the modulation of the discharge current. The modulation of the electron concentration leads not only to the modulation of the level populations, but also to the disturbance of the relative equilibrium of the populations. It becomes possible the inversion of the populations of individual states, which will lead to the appearance of anomalously strong lines in the emission spectra. In a non-equilibrium plasma, due to the multi-level energy structure of atoms and molecules, there are dozens of mutually transforming neutral components with different levels of excitation. The report presents the experimentally obtained results of studies of acoustoplasma states. All the diversity of the research is presented in the form of a nomogram.

Format:

pdf

Identifier:

oai:arar.sci.am:263312

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան