Relativistic calculations of electron-impact ionization for highly charged hydrogen-like ions |
| |
Authors: | X.H. Shi Y. Zhao Y.S. Wang |
| |
Affiliation: | Institute of Modern Physics, Fudan University, Shanghai 200433, People's Republic of China |
| |
Abstract: | Electron-impact ionization cross-sections and rate coefficients of the 1s ground state for H-like C, O, Mg, Ar, Fe, Cu, As, Kr, Y, Mo ions with incident electron energies up to 15 times the ionization threshold energy have been systematically calculated by the relativistic distorted-wave Born exchange (DWBE) approximation. The comparison of the result with the experimental data, other theoretical calculations and recommended values shows the very good agreement. The influence from relativistic and the lowest order QED effect in the calculation is discussed. The calculated ionization cross-sections are fitted by empirical formulas. These fits can be readily integrated over a relativistic Maxwellian electron distribution function to obtain rate coefficient for plasma modeling. |
| |
Keywords: | Highly charged hydrogen-like ions Ionization cross-section and rate coefficient Relativistic distorted-wave method Fit formula |
本文献已被 ScienceDirect 等数据库收录! |
|