Damping and dispersion of linear longitudinal oscillations in a multi-component plasma. II

Linear dispersion phenomena in Vlasov-Poisson plasma's with drift are studied in order to be able to test the relevance of linear theory for plasma turbulence. Especially the effect of the addition of light ions, giving rise to stabilisation, is taken into account. Emphasis is laid on approximate methods that give the possibility to investigate the influence of parameters like ion-mass-ratio, temperature ratio etc. Numerical results are given for a He-A plasma.