Time domain half-space dyadic Green's functions for eddy-current calculations

The field due to an impulsive current dipole embedded in a half-space conductor adjoining a nonconducting half space is given by an exact solution of the quasistatic field equations. This solution has been used to construct a half-space dyadic Green's function containing a term for an unbounded conductor plus terms representing the field reflected at the interface between conducting and nonconducting regions. The resulting kernel can be used in the formulation of time-dependent scattering problems to express the electric field in a conductor as an integral over an electric dipole distribution. (C) 1999 American Institute of Physics. [S0021-8979(99)08422-4].