Transition radiation of a relativistic point charge on the transverse orientation linear antenna

Abstract

The induced charge and current distribution along the transverse orientation linear antenna, while its surface is intersected by the relativistic point charge, has been calculated. The wave packet of the current with a step and delta-shaped fronts extends along the antenna. A normal component of the transition-radiation electric field is calculated. The normal component of the electric field, having a maximum along the normal to the antenna axis, is distributed in the form of a diverging spherical wave with a delta-shaped front. The uncompensated normal component of the transitionradiation electric field strength in the wave zone is a wave packet of different-polarity delta-shaped pulses. The delta-shaped pulses are related to the relativistic charge radiation itself and to the relativistic charge radiation reflected from the target. The relativistic charge radiation reflected from the target is much higher than the radiation of the relativistic charge itself.