Abstract
The main processes involved in energy loss of charged particles are briefly considered and compared to inner shell innization. Some applications of particle induced X-ray emission are mentioned. The higher order corrections to the PWBA and SCA theories for the ionization cross section are briefly sketched and compared to each other.
Selected K-shell cross section data (from the compilation byGardner andGray, and from some recent publications) for projectiles from protons to oxygen ions on various targets are compared to each other and to theories. It is found that almost all the data lie between 60% above and 60% below the corrected PWBA theory byBrandt et al, but that there are also systematic discrepancies between theory and experiments where the reduced velocity variable ξ has about the values 0.2, 0.3, and 0.6. Possible reasons for these discrepancies are given. The SCA theory, as corrected byLaegsgaard et al, has a rather limited range of validity, but within this range, it agrees better with the data than the PWBA theory.
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Paul, H. X-rays induced by light ions. Acta Physica 49, 39–53 (1980). https://doi.org/10.1007/BF03158709
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DOI: https://doi.org/10.1007/BF03158709