Distribution of Ionization in Materials Irradiated by Two and Three Million-Volt Cathode Rays

Abstract
Measurements are reported on the distribution of ionization in depth of aluminum produced by steady beams of two and three million‐volt electrons. The variation of cathode‐ray current density in a plane transverse to the beam, the effect on this transverse distribution of additional aluminum scattering foils, and a practical method of cathode‐ray dosage computation are given.