Ignition Process Investigation of High-Frequency Discharge in Gas Discharge Chamber of Gas-Dynamically Open Configuration

Abstract

Until now, studies of discharge ignition processes in electrodeless plasma accelerators have been based on the study of their unidirectional configurations. At the same time, multidirectional wave plasma accelerators differ significantly from unidirectional ones in that they have several holes in the inner cavity of the gas discharge chamber and a different direction of the magnetic field inside them, which can affect the paths of electrons when exposed to electric and magnetic fields during discharge ignition. Therefore, both the theory and the results obtained for unidirectional electrodeless plasma sources may not be applicable. In this article, the transient process (discharge ignition) is experimentally investigated and the parameters of stable discharge ignition in a symmetrical gas discharge chamber open from two ends to the outer space are determined by varying the intensity of the azimuthal electric and magnitude of the axial magnetic fields and the flow rate of the rarefied gas. Experimentally determined parameters of discharge ignition in a bidirectional wave plasma accelerator are theoretically substantiated using the diffusion theory and the theory of the pondermotive effects of the motion of charged particles in electric and magnetic fields

The work was carried out with the support of the Ministry of Science and Higher Education of the Russian Federation within the framework of the State Assignment (no. FSFN-2024-0011)

Please cite this article in English as:

Shumeiko A.I., Telekh V.D. Ignition process investigation of high-frequency discharge in gas discharge chamber of gas-dynamically open configuration. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2025, no. 6 (123), pp. 101--119 (in Russ.). EDN: ZATSMF

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