Open AccessSimulations of the glow discharge positive column parameters in helium
Author(s) -
N. A. Demin,
А. В. Федосеев
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012151
Subject(s) - glow discharge , atomic physics , helium , plasma , boltzmann equation , electric field , poisson's equation , electric discharge in gases , range (aeronautics) , electron , electron temperature , gas filled tube , ion , electric discharge , electron density , chemistry , materials science , physics , electrode , thermodynamics , nuclear physics , organic chemistry , quantum mechanics , composite material
The self-consistent model for the positive column of a glow discharge is presented. The model is based on the simultaneous solution of the nonlocal Boltzmann equation for electron energy distribution function, continuity equation for ions and Poisson equation for electric field. Calculations were performed for a discharge tube similar to the Plasma Kristall-4 experiments for plasma forming gas helium for the range of pressures of 20-70 Pa and the range of discharge currents of 0.5-2.5 mA. Axial electric field strength, electron temperature and electron density dependences on the discharge current and the gas pressure are obtained. The results show a good correlation with the data obtained by the other authors.