One- and two-electron capture processes in slow collisions Neq+-He (q 10.6)

Cross sections of processes involving one- and two-electron capture in states Ne9+(n) with n = 3-6 and Ne8+ (3l, n'l'), Ne8+ (4l, n'l') with n' ≥ 4 and cross sections of one-electron capture in state Ne5+ (3) in the course of Ne10+ and Ne6+ ions collision with He atoms in the range of collision energies from 10 to 150 keV are calculated. The calculation is made in multichannel models, allowance made for radial bond of the channels in the points of intersection of quasimolecule quasidiabatic two-electron states energies. Energies of the two-electron states are calculated in the framework of the effective potential method in the first order of the perturbations theory according to residual interelectronic interaction. The adiabatic states energies in the vicinity of quasidiobatic therms intersection are determined in the framework of configurations interaction method. Cross section of two electron capture in state 3lnl' (n ≥ 4) of Ne8+ ion proved an order less than the one-electron capture cross section. Dependence of two-electron recharging cross section on the value of l and l' is analyzed