The Influence of the Magnetic Field on the Plasma Characteristics in Hollow Electrodes Discharge System

Authors

  • Murad M. Kadhim Department of physics, College of Science, University of Baghdad, Baghdad, Iraq https://orcid.org/0000-0002-8941-9240
  • Qusay A. Abbas Department of physics, College of Science, University of Baghdad, Baghdad, Iraq

DOI:

https://doi.org/10.24996/ijs.2022.63.10.12

Keywords:

Hollow electrodes discharges (HED), I-V characteristics, Breakdown voltage, magnetic field, OES, electron temperature, electron number density

Abstract

      This work is an experimental study about the effects of gas pressure and magnetic field on plasma characteristics produced in an internal hollow electrodes discharge (HED) system. The results show that the breakdown voltage values increase with increasing the working pressure (especially with the presence of a magnetic field). The breakdown voltage depends on the p.d. product, where p is the gas pressure and d is the distance between the electrodes. While the values of current discharge decrease with the increase of the working pressure. The temperature of electron and the number density of electron are calculated from the Boltzmann method and the broadening of Stark, respectively. The results showed that the electron number density ( ) and plasma frequency ( ) increase with increasing the gas pressure, especially with the presence of a magnetic field, i.e. the plasma is more stable with the presence of magnetic field. While the electron temperature ( ) and Debye length ( ) decrease with increasing the gas pressure.

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Published

2022-10-30

How to Cite

Kadhim, M. M., & Abbas , Q. A. (2022). The Influence of the Magnetic Field on the Plasma Characteristics in Hollow Electrodes Discharge System. Iraqi Journal of Science, 63(10), 4254–4266. https://doi.org/10.24996/ijs.2022.63.10.12

Issue

Section

Physics