[01] A. Settaouti, Electrotechnic Department, University of Sciences and Technology, Oran, Algeria.

The corona discharge commonly occurs in many processes and engineering devices. Monte Carlo simulation for the initial phase of an oxygen corona discharge in apoint-plane gap is presented. This method is based on the motion of electrons in electric field and their interactions with the molecules of gas. All the electrons are followed simultaneously in time and their coordinates and velocities are recorded. It lets us study all space and temporal aspects of the electron avalanche evolution. The growth of the first avalanche and the beginning of the second one are simulated to determine which physical process is responsible for the propagation of the discharge. This method provides the spatial-temporal local electric field and particles charged densities variations as well as the ionization front velocity.

Simulation, Monte Carlo, Corona, Electric Field, Space Charges, Discharge

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