Simulation of electron swarm motion in hydrogen and carbon monoxide for high E/N

Electron swarm motion has been simulated by using a Monte Carlo technique and swarm parameters have been evaluated for electrons in both hydrogen and carbon monoxide gases for a wide range of E/N varying from 30 to 3000 Td. Comparison has been made with the experimental results for the ionization coefficient, the drift velocity and both the radial and longitudinal diffusion coefficients. A set of electron/molecule collision cross-sections has been assembled for each gas which gave a good fit between the simulated and experimental values over the entire E/N range.