Low-frequency temperature-dependent plasma discharge instabilities in the presence of external constant electric and magnetic fields

Abstract

By calculating the dielectric permittivity of a magnetoactive plasma discharge in the presence of an external electric field, low-frequency instabilities resulting from the dependency of the electron-neutral collision frequency, electron-ion recombination coefficient and ionization frequency on the electron temperature are investigated. Furthermore, it is shown that some of these instabilities depend on the sign change of the derivative of the kinetic coefficients with respect to the electron temperature. Finally, it is shown how frequency spectra and the development of instabilities are changed by increasing the strength of the external magnetic field.

PIC Simulation of Current‐Driven Buneman Instability in Presence of Collisional and Thermal Effects

“…There has been a great deal of interest in the study of the nonlinear dynamics of instabilities in plasma which have become one of the most important subjects of plasma physics [1][2][3]. Among them, streaming instabilities are important in particle heating and acceleration in space plasmas and astrophysical phenomena [4][5][6].…”

Simulation of low frequency Buneman instability of a current-driven plasma by particle in cell method

“…[1][2][3][4][5][6][7][8][9] These instabilities are individually investigated by the hydrodynamic and/or the kinetic models. The Buneman instability is one of the most fundamental instabilities in discharge plasmas.…”