Projectile and Target Dependence of theK αSatellite Structure

Abstract

Proton, $\ensuremath{\alpha}$-particle, and oxygen-ion beams are used to induce $K\ensuremath{\alpha}$ x-ray spectra in the elements Ca, Sc, Ti, V, Cr, and Mn. The target dependence of the satellite structure for $Z=20 \mathrm{to} Z=25$ is studied. The relative intensity ratios for the production of one $K$ -shell and multiple $L$ -shell vacancies are measured. These ratios are compared with the predictions of the binary-encounter approximation (BEA) and the semiclassical approximation (SCA) for multiple ionization. The data strongly reflect the statistical approach used in the theories. The BEA theory agrees well with the proton and $\ensuremath{\alpha}$-particle data but does not give good agreement with the oxygen data.