Low energy carbon ion induced M X-ray relative intensities for _(70)Yb, _(82)Pb and _(83)Bi

摘要

In the present work, the intensity ratios, I-Mk/I-Mn (exp) (k = xi, beta, gamma, m(1); n = alpha beta, alpha), for Yb-70, Pb-82 and( 83)Bi induced by the Cq+ (q = 4, 5) ions having energies in the range 800-1500 keV have been measured. These intensity ratios have been compared with those calculated using the ECPSSR model based carbon ion induced M-j (j = 1-5) sub-shell ionization cross sections, the X-ray emission rates based on the Dirac-Fock (DF) model, two sets of the fluorescence and Coster-Kronig yields based on the non-relativistic Hermann-Skillman potential calculations and those based on the relativistic Dirac-Hartree-Slater model. Significant differences observed between the present measured and calculated ratios could be due to multiple-ionization induced in the investigated elements by the incident carbon ions.