Abstract
The angular distributions have been obtained for alpha-particles from the reactions Be9 (p, α) Li6 (ground state), Be9 (d, α) Li7 (ground, first and second excited states), B10 (p, α) Be7 (ground state), B10 (d, α) Be8 (ground state), B11 (p, α) Be8 (ground state) and B11 (d, α) Be9 (ground and second excited states), and from the elastic and inelastic (second excited state) scatterings of alpha-particles by Be9. Besides, the angular distribution of deuterons from the reaction Be9 (p, d) Be8 (ground state) was measured. The energies of incident beams were nearly 7 MeV for protons, 14 MeV for deuterons and 28 MeV for alpha-particles. The results, except for B10 (p, α)Be7 and B11(p, α)Be8, show forward and/or backward rises and may be interpreted by direct interactions. The integrated cross sections of the reactions (p, α) and (d, α) on Be9 are larger than those on B10 and B11.
