Inner-Shell transitions of Be-like ions with Z = 6–54

Abstract

The wavelengths and transitions probabilities of the radiative transitions 1s2s22p –1s22s2, 1s2s2p2–1s22s2p, 1s2p3–1s22p2 and autoionization rates of the states 1s2s22p, 1s2s2p2, 1s2p3 for Be-like multicharged ions with Z = 6–54 were calculated. These data were used for the calculation of relative intensities of dielectronic satellite spectra for highly charged He-like ions. Synthetic spectra will be built from these data for different plasma sources. A perturbation theory method is described for the calculation of atomic properties of autoionization state. Correlation, relativistic and radiative effects were taken into account. The application both of LS- and jj-coupling schemes was considered depending on the value of Z. All results were calculated in the intermediate coupling scheme. Mixing of the configurations is considered in details for different Z to understand the transpositions of levels. Z-dependencies of radiative transition probabilities and autoionization rates are discussed.