https://doi.org/10.1051/epjap/2019190224
Regular Article
DC radial glow discharge in axial magnetic field at low pressures
1
School of Electrical and Information, ChangZhou Institute of Technology, ChangZhou 213032, P.R. China
2
School of Electrical and Electronic Engineering, Shandong University of Technology, ZiBo 255049, P.R. China
* e-mail: gs59519829@126.com
Received:
8
August
2019
Received in final form:
19
October
2019
Accepted:
16
December
2019
Published online: 5 February 2020
The influence of magnetic field on DC radial glow plasma was studied by self-designed coaxial glow discharge device, and the influence of magnetic field on the spatial distribution of plasma density is studied. The experimental results show that the spatial density distribution of plasma from cathode to anode increases gradually in the high-intensity magnetic field, and decreases gradually in the absence of magnetic field. Theoretical analysis of the above results show that the high-intensity magnetic field increases the moving path of the electrons, enhances the collision efficiency between the electrons and the neutral atoms, and makes the discharge plasma density remarkably enhanced.
© EDP Sciences, 2020
