DOI: https://doi.org/10.18524/0235-2435.2019.28.194341

ELECTRON-COLLISIONAL SPECTROSCOPY OF ATOMS AND IONS: ADVANCED ENERGY APPROACH

V. V. Buyadzhi

Анотація


An advanced relativistic energy approach combined with a scattering theory is used to calculate the electron-collision excitation cross-sections, collision strengths for a number of multicharged ions. The relativistic many-body perturbation theory is used alongside the gauge-invariant scheme to generate an optimal Dirac-Kohn-Sham- Debye-Hückel one-electron representation.  The results of relativistic calculation (taking into account the exchange and correlation corrections) of the electron collision cross-sections (strengths) of excitation of the transition between the fine-structure levels (2P 3/2- 2P 1/ 2) of the ground state of F-like ions with Z = 19-26 and  of the [2s2 1S-(2s2p 1Р)] transition in the В-like O4+ are presented and analysed.

Ключові слова


spectroscopy of ions; relativistic energy approach; collision cross-sections

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Посилання


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