Abstract
R-matrix calculations have different sources of inaccuracy. We analyze the differences in the final results caused by differences in three aspects of the calculation: the atomic structure of the target, the completeness of the close coupling expansion, and the method used to include relativistic effects in the Hamiltonian. We present the electron-impact excitation of the ion Be-like Al9+ as a case study. We conclude that the completeness of the CI/CC expansion plays the most important role for the reliability of the results, mainly for the most highly-excited levels.
Original language | English |
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Article number | 052034 |
Number of pages | 1 |
Journal | Journal of Physics: Conference Series |
Volume | 635 |
Issue number | 5 |
DOIs | |
Publication status | Published - 7 Sept 2015 |
Event | XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC) - Toledo, Spain Duration: 22 Jul 2015 → 28 Jul 2015 |
Keywords
- atoms
- electron resonance
- impact ionization
- close coupling
- configuration interactions
- electron-impact excitation
- excited levels
- R-matrix calculation
- relativistic effects
- electric excitation