Abstract: In this paper, we use classical trajectory Monte-Carlo theory to calculate the collision between fully ions and H atom. By solving the Hamiltonian equations of the system, we obtain the cross sections of charge transfer and ionization. Comparison with the ORNL recommended data shows that our results are in good agreement in the intermediate energy range. The method is correct and the results are satisfactory.

Key words: classical trajectory, Monte-Carlo, charge transfer, ionization, cross section, collision