Coherent oscillations excited in opposite electron and ion beams of a diaphragmed discharge between hollow electrodes

Abstract

We have experimentally studied the coherence of oscillations appearing, as a result of the Buneman instability, in a stationary regime of a diaphragmed discharge between hollow electrodes. The degree of coherence of the oscillations grows with the discharge current intensity, which is probably explained by an electrostatic coupling between discharge channels increasing with the amplitude of oscillations. © 2000 MAIK "Nauka/Interperiodica".