Projectile charge state dependence of target Lα x-ray production

Lα x-ray production cross sections have been measured for thin solid targets of ₆₀Nd, ₆₇Ho, and ₇₉Au (pt<12 μg/cm²) for 1.86 MeV/amu 19₉F and 28₁₄Si, and 1.8 MeV/amu 35_{17Cl ions as a function of the incident charge state. From the projectile charge state dependence of the cross sections, both direct ionization and electron capture contributions were extracted for a comparison to Coulomb ionization theories. The data provide supporting evidence for the theory of electron capture with a reduced binding effect.}