FORMULA FOR SECONDARY ELECTRON YIELD FROM METAL Al AT HIGHER INCIDENT ELECTRON ENERGY AT DIFFERENT INCIDENT ANGLE

The relation between the incident energy incident angle and secondary electron emission coefficient at higher incident electron energy in theory on the basis of dominant physical processes of secondary electron emission is discassed. By calculating the parameter, we get the formula for secondary electron yield from metal Al at higher incident electron energy and different incident angle. After comparison with experimental data, the formula is well applicable.