Abstract
A direct Monte Carlo program has been developed to calculate the backward (γb) and forward (γf) electron emission yields from 20nm thick Al foil for impact of C+, Al+, Ar+, Cu+ and Kr+ ions having energies in the range of 0.1–10keV/amu. The program incorporates the excitation of target electrons by projectile ions, recoiling target atoms and fast primary electrons. The program can be used to calculate the electron yields, distribution of electron excitation points in the target and other physical parameters of the emitted electrons. The calculated backward electron emission yield and the Meckbach factor R=γf/γb are compared with the available experimental data, and a good agreement is found. In addition, the effect of projectile energy and mass on the longitudinal and lateral distribution of the excitation points of the electrons emitted from front and back of Al target has been investigated.
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