Theoretical Study of Electron Capture Induced by Multiple Charged Carbon and Oxygen Ions

Key words: 
• ECPSSR theory /
• cross section of single electron capture /
• X ray production cross section /
• ionatom collision /
• OBKN theory

Abstract: Based on the ECPSSR theory, the contribution of the electron capture is described by the OBKN theory. The cross sections of electron capture and X ray production for the collision of different charge state projectiles with various targets are calculated, and compared with the available experimental data. It is found that the obtained X ray production cross sections are almost independent of the projectile charge states for projectiles without a K vacancy. For the collision processes of direct ionization, the present calculated results agree well with the experimental data. The calculations overestimate the X ray production cross sections for the projectiles with full and a K vacancy.