High-voltage glow discharge with electric arc grid plasma cathode

R. A. Kartavtsov^a, S. Yu. Doroshkevich^a, D. A. Gorkovskaya^a, M. S. Vorobyov^ab, A. A. Grishkov^a, N. N. Koval'^a, M. A. Mokeev^a, P. V. Moskvin<sup>a

a</sup> Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Tomsk
^b Tomsk Polytechnic University

Abstract: A new method of high-voltage glow discharge (HVD) generation based on the use of a discharge system with an electric arc grid plasma cathode and characterised by self-sustaining combustion due to the evaporation of collector material is presented. The electric power supply of VTR is provided from a single source and is a combination of two different mechanisms of current flow: arc current associated with evaporation of cathode material by the cathode spot of arc discharge, and smouldering current associated with evaporation of VTR anode material (collector), vapour ionisation and ion-electron emission from the grid plasma cathode electrodes.

Keywords: high-voltage glow discharge, arc discharge, cathode spot, grid plasma cathode, electron beam, anode plasma, vaporisation of materials.

Received: 11.08.2025
Revised: 05.09.2025
Accepted: 08.09.2025

DOI: 10.61011/PJTF.2026.02.62065.20471

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