The electron transport process in cathode sheath of helium dc glow discharge is studied by using Monte Carlo simulation. The electron is accelerated between collisions by. the non-uniform electric field. The electron free flying time between collisions is determined by electron-neutral collision frequency. The proposed method may reduce complicated calculation and save much computer time. The experimental data of collision cross section are fitted with semi-experience expressions. The electron mean energy, the energy spatial distribution, and other parameters distribution are studied as well.

The influence of the glow discharge total current density J and the gas pressure P on the secondary electron emission coefficient γ is studied by using the Runge-Kutta method. The variations of γ wity J, P and E/P (E is the electric field at the cathode) are obtained.