Stability of the cathode layer of normal glow discharge in argon

Smirnov, Boris M.; Терешонок, Д. В.

doi:10.1209/0295-5075/107/55001

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…Of course, we are interested only in fast electrons, i.e. those usually observed by the experimenters [1][2][3][4][5]. Therefore, in order to calculate a fast electrons spectrum at the anode we added a foil filter that cuts off the low energetic part (<10 keV) of the electron beam.…”

Section: Discharge Spatial Structure Evolutionmentioning

confidence: 99%

1D simulation of runaway electrons generation in pulsed high-pressure gas discharge

Kozhevnikov

Kozyrev

Semeniuk

2015

EPL

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The results of theoretical modelling of runaway electron generation in the highpressure nanosecond pulsed gas discharge are presented. A novel hybrid model of gas discharge has been successfully built. Hydrodynamic and kinetic approaches are used simultaneously to describe the dynamics of different components of low-temperature discharge plasma. To consider motion of ions and low-energy (plasma) electrons the corresponding equations of continuity with drift-diffusion approximation are used. To describe high-energy (runaway) electrons the Boltzmann kinetic equation is included. As a result of the simulation we obtained spatial and temporal distributions of charged particles and electric field in a pulsed discharge. Furthermore, the energy spectra calculated runaway electrons in different cross-sections, particularly, the discharge gap in the anode plane. It is shown that the average energy of fast electrons (in eV) in the anode plane is usually slightly higher than the instantaneous value of the applied voltage to the gap (in V).

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