Open AccessАнизотропия плазмы при извлечении из нее заряженных частиц
Author(s) -
В.Я. Мартенс
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.03.48920.296-19
Subject(s) - electron , cathode , electric field , atomic physics , plasma , plasma channel , physics , materials science , chemistry , nuclear physics , quantum mechanics
The anisotropic perturbation of a hollow-cathode reflex discharge plasma when electrons are extracted from it through an axial channel in the cathode-reflector is experimentally investigated. The expansion of the extracted electrons energy spectrum in the direction of extraction was observed as the external accelerating electric field increased. The energy spectrum expansion is associated with the plasma electrons directional movement towards the emitting surface of plasma. The axial gradients of the concentration and the electric potential are assumed to be the reasons for the directional movement of electrons.