Some Studies of Electron Cyclotron Echoes from Plasma

Abstract

This paper describes a single‐particle collisional theory of the two‐ and three‐pulse echo trains that are stimulated when a magnetoplasma is subjected to repeated pulses at the cyclotron frequency, and presents results of a series of experiments supporting the applicability of the theory. A major prediction of the analysis that has been confirmed experimentally is that, when dissimilar pulses are applied, an arbitrary pulse shape can be stored and recalled. The possible applications of echo phenomena to the study of collision processes, and in memory devices, are discussed briefly.