Spatial distribution of electric field and charge in single-crystal ZnSe under pulsed electron irradiation

Abstract

The linear electrooptical effect was used to study the spatial intensity distribution of the magnetic field induced in a ZnSe crystal by a nanosecond electron beam. Measured profiles of the electric field as a function of beam current density and the positions of the grounded electrodes on the specimen are presented. It is shown that the spatial distribution of the field is shaped by the distribution of the thermalized accelerator-beam electrons in the material, by the field of the space charge itself, and by radiation-induced conduction.