Fe 20+ + C(foil) → Fe 21+
Table 1 (Theory, Born approximation)
V.P. Shevelko, H. Tawara, O.V. Ivanov, T. Miyoshi, K. Noda, Y. Sato, A.V. Subbotin, I. Yu. Tolstikhina, J.S. Yoon // J.Phys. B v.38 p.2675 (2005)