L-shell X-ray production of molybdenum and niobium induced by 1500–3500 keV Xe26+ ions

L-shell X-ray production cross sections are measured for molybdenum and niobium target induced by Xe26+ ions. The incident energy range varies from 1500 to 3500 keV. The experimental results are well reproduced by the binding-energy-modified binary encounter approximation model in the united-atom limit. In addition to target L-shell X-ray spectra, we also observe a weak spectrum which corresponds to the forbidden transition 3d → 2s from the projectiles.