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hydrogenic_2s_oscillator_strength_density_per_ev

lindhard::electron::inelastic::shell_elf

Function hydrogenic_2s_oscillator_strength_density_per_ev 

Source 
pub fn hydrogenic_2s_oscillator_strength_density_per_ev(
    binding_energy_ev: f64,
    energy_ev: f64,
) -> f64
Expand description

The hydrogenic 2s (L1) optical oscillator-strength density per electron, df/dW in eV⁻¹, at energy loss energy_ev for a subshell of binding energy binding_energy_ev: Karzas and Latter, Astrophys. J. Suppl. 6, 167 (1961), eq. (37) for n = 2, ℓ = 0, converted by Salvat, arXiv:2605.22442, eq. (6.2) (module docs, “The formulas used”). Zero below the edge; at the edge, its limit (2¹²/(3B)) e⁻⁸.