Absolute differential cross sections for direct scattering of keV O⁺ions by He, H₂, N₂, and O₂

Accurate atomic scattering cross sections are essential for modeling energetic particle precipitation into the upper atmosphere. Here, measurements of absolute differential cross sections for direct scattering of O + ions by He, H 2 , N 2 , and O 2 are reported. The measured cross sections include contributions from both elastic and inelastic scattering processes. Data are presented for 0.5‐, 1.5‐, and 5‐keV projectile energies over the...