V 19+ + He → V 20+
Table 1 (Experiment)
W.G.Graham,K.H.Berkner, E.M.Bernstein, M.Clark, R.H. McFarland, T.J.Morgan, A.S.Schlachter, J.W.Stearns, M.P.Stockli, J.A.Tanis // J.Phys. B v.18 p.2503 (1985)
V 19+ + He →V 18+
Table 2 (Experiment)