The fraction of simultaneous K plus L shell ionized atoms is estimated in Fe, Co and Cu elements using carbon ions at different projectile energies. The present results indicate that the fraction of simultaneous K plus L shell ionization probability decreases with increase in projectile energy as well as with increase in the atomic number of the targets atoms.

K X-ray emission spectra of Ti, V, Cr and Mn generated by photon excitation have been studied with a crystal spectrometer. The measured energy shifts of K$_{\alpha}$ satellite relative to the diagram line are compared with values obtained by electron excitation and with different theoretical estimates. The present experimental values of K$_{\alpha}$L¹/K$_{\alpha}$L⁰ relative intensities are compared with values obtained by electron excitation.