P. V. Bommel

The formation of a negative hydrogen ion beam by surface conversion of a positive ion beam on cesiated tungsten surfaces

H. Hopman, P. Massmann, P. V. Bommel, 1985 .

H - production on poly- and monocrystalline converters in a surface-plasma ion source

K. W. Ehlers, K. Leung, P. V. Bommel, 1984 .

Formation of H− by scattering H+ on a cesiated polycrystalline tungsten surface

E. Granneman, J. Los, J. V. Wunnik, 1983 .

Production of a dense low energy positive hydrogen ion beam

H. Hopman, P. Massmann, J. Los, 1984 .