Date: October 1986
Creator: Price, J. L.; Duggan, Jerome L.; McDaniel, Floyd Del. (Floyd Delbert), 1942-; Lapicki, Gregory & Mehta, R.
Description: This article discusses K-shell x-ray production by 0.5-2.5-MeV ₄⁹Be+ ions incident upon selected elements from fluorine to potassium. Abstract: K-shell x-ray production cross sections are reported for ₄⁹Be+ ions incident upon thin ₉F, ₁₁Na, ₁₃Al, ₁₄Si, ₁₅P, ₁₇Cl, and ₁₉K targets. Incident-beam energies range from 0.5 to 2.5 MeV. It is found that the first Born approximation (plane-wave Born approximation plus the Oppenheimer-Brinkman-Kramers treatment by Nikolaev) greatly overpredicts the data, while the predictions of the perturbed-stationary-state theory with energy-loss, Coulomb deflection, and relativistic corrections (ECPSSR) are generally in good agreement with the data. There is a low-velocity discrepancy between the data and the ECPSSR predictions which may be due to multiple ionization effects on the fluorescence yields used to convert total ionization to x-ray production cross sections.
Contributing Partner: UNT College of Arts and Sciences