Abstract
Cold neutron inelastic scattering is used to investigate the dynamics of alpha solutions of Be in a V matrix for various concentrations. The increase of Be concentration leads to a broadening of the local oscillation (LO) spectrum and to a shift of its centre. The concentration dependence of the LO spectrum width and LO energy position, as well as the deformation of the lattice vibrations spectrum are compared with calculations in terms of the coherent potential approximation.