Anisotropic energy loss of a pair of charged projectiles in a dusty plasma

By employing a dielectric approach, the energy loss of a pair of test charg ed projectiles passing through a multicomponent dusty plasma, retaining two ion correlation effects is computed. The numerical results are presented w hen the two projectiles lie inside R < lambda (D) or outside the Debye sphe re R > lambda (D) or their separation is of the order of Debye length R sim ilar or equal to lambda (D). For a given separation R, smaller energy loss per unit path length occurs for collinear projectiles than for parallel one s. The contribution to the energy loss due to interference term is also inv estigated for different test charge velocities and for different relative o rientations of the two projectiles. Results of this analysis can be useful in the fields of ICF, Tokamak, Plasma Processing as well as in Space and As trophysical plasmas.