| Research on atomic collision processes, such as photon, electron or ions collision with atoms is of great significance in atomic physics. It not only helps to imply the dynamics of multiple inner-shell ionization mechanism but provides accurate data,which are very important to many branches of physics such as atmospheric physics,plasma physics, physical experiment and so on. In the process of target atoms collided with highly charged ions, complex hollow atomic structure will be formed. Besides rich satellite lines and hypersatellite lines accompanied by diagram lines will also be seen in the radiative decay spectra. Study on the X-rays spectra of radiative decay for target atoms undoubtedly provides a significant tool for understanding the formation mechanism of hollow atoms in the ions-atoms collision process. In a recent experiment, rich radiative decay satellites and hypersatellites spectra from the target atoms Kr and Xe bombarded by fully stripped Xe ions of high energy 197 eV, have been measured at HIRFL-CSR in Lanzhou. Based on the experiment, our work follows. By far we have done theoretical calculations about the radiative decay spectra from target atoms and finished the simulated spectra. In addition, according to Ar,which belongs to rare gas like Kr and Xe, we have also done some similar calculations. So the main work of this paper consists two parts:Part1. Based on the multiconfiguration-Dirac-Fock(MCDF) method, in which the Breit interaction, QED corrections are also considered, in this paper, we have theoatically calculated transition energies and rates of K X-rays K? K? diagrams,satellite lines and hypersatellites for target Kr and Xe atoms in collision process. In comparison with the reference data for diagram lines, the fitness degree of our calculated results is good and it further proves the accuracy and reliability of our theoretical calculations. We have further made the transition energies and rates stickspectra of different configurations. Beside we accomplish the line shape with the help of Gauss broadening at FWHW of 210 eV and by doing so the mean energy and rate for different group has been determined. Furthermore, We have studied the energy shifts of K? K? satellite lines and hypersatellite lines for target Kr and Xe atoms and concluded that the number of L shell spectator vacancy varies linearly with the energy shifts of K? K? satellite lines and hypersatellite lines. Additionally, we further study the effects of spectator vacancy in M shell and draws a conclusion that taking an additional M hole into account, it is found that for K? satellites and hypersatellites, the energy shift does not vary, but for K? satellites and hypersatellites, the effect of energy shift by will be evident and adding an M hole will increase the energy shift. Finally,we have made the theoretical spectra with the assumption that all transition lines have an equal weight and the produced probability of K-1 initial hollow configuration is assumed to be 12.5 times as the produced probability of K-2 initial hollow configuration. The theoretically simulated spectra are in good agreement with the newly measured experimental results.Part2. We have calculated the transition energies and rates of all possible K X-rays K? K? diagrams, satellite lines and hypersatellites lines for the configurations K-m L-n M0(m=1, 2; n=0-8) and K-m L-n M-1(m=1, 2; n=0-2) for target Ar atom by using the MCDF method with the inclusion of Breit interaction and QED corrections. We have made the transition energies and rates stick spectra of different configurations.Beside we have drawn the line shape with the help of Gauss broadening at FWHW of150 eV and we have determined the mean energy of different group according to the line shape and listed all mean energies of each configuration. We have also studied the energy shifts of K? K? satellite lines and hypersatellite lines for target Ar atoms and get results just like Kr and Xe. We hope that these results will be verified inexperiment in the future. |
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