The Coulomb–Born approximation is used to calculate electron-impact excitation collision strengths and effective collision strengths for optically allowed transitions among degenerate fine-structure levels of hydrogenic ions with 2⩽Z⩽30 and n⩽5. Collision strengths are calculated over a wide range of energies up to View the MathML source. Effective collision strengths are obtained over a wide temperature range up to View the MathML source by integrating the collision strengths over a Maxwellian distribution of electron velocities.
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Atomic and Molecular Physics, and Optics
Hamada, K., Aggarwal, K. M., Akita, K., Igarashi, A., Keenan, F. P., & Nakazaki, S. (2010). Effective collision strengths for optically allowed transitions among degenerate levels of hydrogenic ions with Z = 2 - 30. Atomic Data and Nuclear Data Tables, 96, 481-530. https://doi.org/10.1016/j.adt.2010.02.001