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Electron Transmission Coefficient for Tilted Specimens
Author(s) -
Andrae Michael,
Klein Peter,
Röhrbacher Kurt,
Wernisch Johann
Publication year - 1996
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/(sici)1097-4539(199603)25:2<78::aid-xrs144>3.0.co;2-p
Subject(s) - monte carlo method , electron , transmission coefficient , mean free path , scattering , transmission (telecommunications) , physics , computational physics , angle of incidence (optics) , electron scattering , optics , atomic physics , nuclear physics , mathematics , statistics , computer science , telecommunications
Starting from a scattering model, the transmission coefficient of electrons for an oblique angle of incidence is derived. The descent of the transmitted fraction is described by the backscattering of electrons and the energy loss caused by the decreasing mean free path. The angular and energy distribution of electrons is replaced by the most probable angle and mean energy. A comparison with other models and measurements valid for normal incidence was made. The altered transmission characteristics by tilting the sample were verified by comparison with results from Monte Carlo simulations and results from Neubert and Rogaschewski, which were based on measurements. An analytical expression for the transmission law was obtained.