One- and two-electron processes in collisions of He with 10–500 keV/amu Beq+(q= 2–4) and Bq+(q= 2–5) ions

Two-center semiclassical close-coupling method is applied to study collisions of He atom by bare and multiply charged ions (Be q + ( q = 2–4) and B q + ( q = 2–5)) in the energy range of 10–500 keV/amu. Cross-sections for one-electron processes for electron capture, excitation, ionization as well as two-electron processes for transfer excitation and transfer ionization were obtained. Dependence of cross-section on projectile energy and charge state was investigated. Our calculations provided the first systematic study for these collision systems. Comparison with the limited number of previous theoretical and experimental results was also made.