K-X-RAY SATELLITE ENERGIES AND RADIATIVE PROBABILITIES OF AR IONS FORMED UNDER SLOW AR17+ IONS UPON METALLIC SURFACE

Transition energies and transition probabilities for Ar have been calc ulated for transitions Q-1s2p-1Q, where Q represents all the possible states up to neutral. An attempt was also undertaken to determine elec tron configurations of L- and M-shells and the contribution of N- and O-shell electrons to energies of satellite transitions during the rela xation process into the ground state. Calculation of atomic characteri stics was conducted on the base of perturbation theory by 1/Z-expansio n with use of screening parameters both for nonrelativistic and relati vistic parts of energy, which allows us to calculate only the first or der of the inter-electron interaction. In order to improve the calcula ted results, the screening parameters for each subshell, i.e., for eac h group of electrons with different quantum numbers n and l, have been introduced. Transition energies and radiative transition probabilitie s, averaged over LSJ, are found to be given in analytical formulae, wh ich are applicable to practically any atomic system. A comparison is m ade between measured and calculated transition energies.