ELASTIC PROCESSES IN SLOW COLLISIONS OF BE AND BE IONS WITH HYDROGEN

Because of their present relevance to divertor modeling of fusion reac tors, differential and total elastic cross sections have been calculat ed for collisions of Be, Be+ and Be2+ in the ground state with atomic hydrogen. The collision energy was varied over more than four orders o f magnitude, from 0.01 eV up to 500 eV. The differential cross section s are shown for the full range of scattering angles, at four represent ative values of energy. The total elastic cross section and its plasma transport relevant moments (momentum transfer, viscosity) are present ed as functions of the energy.