K-shell x-ray production in Ge, Rb, Y, Zr, and Ag byN14ion impact

$K$-shell x-ray production cross sections for Ge, Rb, Y, Zr, and Ag have been measured for incident ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ ions in the energy range 7-35 MeV. Ionization cross sections are calculated from atomic $K$-shell fluorescence yields and compared with the plane-wave Born approximation (PWBA) theory modified to include the effects of increased target binding energy, Coulomb deflection of the incident projectile, target polarization, and relativistic $K$-shell electron velocities. Experiment and theory are in very good agreement and indicate that the PWBA with modifications is quite appropriate for the projectile-target combinations and energy range for the measurements presented in this report.