Radiation in a Plasma. II. Equivalent Sources

We postulate that the fields in a plasma satisfy the linearized plasma equations containing electric and acoustic source terms. The fields and discontinuities produced by surface layers of the sources are discussed. It is shown that the fields in a homogeneous source-free volume are given uniquely by their values in $V$ at time zero, plus boundary values for $t>\mathrm{}0\mathrm{}$, either n×E or n×H, and either $n_1$ or n.v. The fields in the volume are the same as those radiated by a certain set of equivalent surface sources on the boundary.