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Theory of Secondary Electron Emission. I. General Theory for Nearly‐Free‐Electron Metals
Author(s) -
Rösler M.,
Brauer W.
Publication year - 1981
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221040117
Subject(s) - electron , atomic physics , physics , free electron model , secondary electrons , secondary emission , elastic scattering , scattering , inelastic scattering , excitation , fermi gamma ray space telescope , core electron , plasmon , nuclear physics , quantum mechanics
A detailed theory of secondary electron emission (SEE) for nearly‐free‐electron (NFE) metals is developed. The creation of secondary electrons (SE) by primary electron (PE) collisions with metal electrons in core states and in the Fermi sphere is considered. Especially a calculation is given of SE production by plasmon decay on the basis of a general model potential. Both, elastic and inelastic collisions of internal secondaries are taken into account. Primary energies are limited to 1 to 2 keV. General formulas regarding excitation functions, mean free paths, and scattering functions, necessary for the computation of the energy angular distribution of SE and secondary yield, are derived.