Ischenko R. Features of the autoionization processes in L- and M-electronic shells of atoms of 3d- and 5d- elements

For the first time the regular experimental investigation of relative intensities of X-ray emission spectra of К-MM and K-LM RAE in atoms of 3d-elements Cr, Fe, Co, Ni, Cu is performed. On the basis of the received experimental values of relative intensities of spectra of K-MM and K-LM RAE the conclusion is made that the one-electronic model of instant perturbation as a whole well describes К-MM and K-LM RAE in atoms of 3d-elements. The method of determination of partial width of L1- level Г13М, connected to CK- transitions L1-L3M5, using experimentally determined relative intensities of lines of L beta- spectrum of 5d- elements is offered. It is found, that partial width Г13М in the field of elements W, Re, Os, Ir, Pt monotonously grows, remaining (except for Ir) in (2.3-1.3) time is lower than calculation executed in approximation of "frozen" orbitals. The enhancement of partial width Г13М at increase in a serial number of an element coincides with growth of kinetic energy taking off M5- electron (at Pt else M4- electron) that can testify to essentially multielectronic character of L3M5- autoionization of atom near energetic threshold of L1-L3M5 CK- transition. In work the model of the description of the intensities of X-ray M alfa- emission lines in atoms of 5d-elements, which takes into account the basic channels of generation and migration of vacancies in M- subshells, is suggested. Using the suggested model for the first time it is carried out calculation of relative intensity of М5N- satellites of Au and checked experimentally up a correctness of the suggested model.