Abstract

Statistics of secondary electron emission from graphite bombarded by low-energy (<500e V) electrons are investigated by using a Monte Carlo simulation. Special features of the emission statistics are a large probability for no secondary electron and a wide spread of the probabilities to more electrons. The statistics spread largely wider with increasing incident electron energy at oblique incidence. In addition, angular and energy distributions not only of secondary electrons emitted but also of the incident electrons backscattered from the surface are calculated; the high-energy components in the energy distributions increase with oblique incidence, the angular distribution of the secondary electrons obeys the cosine law and that of the backscattered electron inclines with oblique incidence.

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