| Radiative recombination is the fundamental interaction processes occurring in the interaction between electrons and ions of highly charged, which not only provides an excellent testing ground for collision theory and atomic structure calculations, but also plays an important role in some areas of modern physics. Such as in Inertial Confinement Fusion, X-ray laser and astrophysics etc. In this dissertation, we have studied the radiative recombination process of highly charged ions and relevant physical processes by using GRASP92 and RERR06 codes, both of them are based on Multi-configuration Dirac-Fock (MCDF) method.At first, based on multi-configuration Dirac-Fock (MCDF) method, radiative recombination (RR) process of H-like uranium ion and radiative decay process of its resultant ion have been studied systematically using the recently developed program RERR06 which is based on GRASP92 and RATIP packages. In the studies, the RR cross sections from 1s state of H-like uranium ion to 1snl (1≤n≤8, 0≤l≤6) of He-like uranium ion have been calculated in detail. Meanwhile, the relative intensity of the radiative decay spectra of the RR final states have also been studied. It was found that the RR cross sections to different orbitals decrease with the increasing of principal quantum number. Furthermore, an important contribution from the radiative decay of the RR final states to the relative intensity of Kαspectra has also been found in the present work.Secondly, Kαtransition properties for F-like isoelectronic sequence ions in the range 29≤Z≤51 have been calculated applying MCDF method, both QED effects and Breit interaction are included. Firstly, the Spin-orbit splitting in the ground states of F-like isoelectronic ions (29≤Z≤51) are calculated, then we discussed the influence of both QED effects and Breit interaction on the Kαtransition energies of F-like ions. At last, the transition probabilities of F-like isoelectronic ions (29≤Z≤51) are computed. Also Comparisons of the present results with others calculation are carried out. We found a quite well agreement with others calculated spin-orbit splitting. both QED effect as well as Breit interactions contribute much to the transition energy, but contrary to earlier findings by Chiranjib Sur et al, there is no crossover of Kα1 and Kα2 with the increasing of atomic number.At last, the multipole and relativistic effects in radiative recombination process have been studied systematically. Taking the helium-like oxygen ion, helium-like iron and helium-like gold ions as an example, the influence of multipole effects on radiative recombination crosses section have been studied when the 2s,2p,3s,3p and 3d shells capture a continuum electron. At the same time, the radiative recombination rate coefficients of these shells have been calculated including the contributions from relativistic effects.
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