Sputtering of a hydrogenated barium surface in a negative ion surface conversion source Back to all publications Publication date 1 January 1992 Reference R.M.A. Heeren, D. Ciric, S. Yagura, H.J. Hopman and A.W. Kleyn, Sputtering of a hydrogenated barium surface in a negative ion surface conversion source, Nucl. Instrum. Methods Phys. Res., Sect B 69, 389-402 (1992) Request this article