Investigation of Vortex Structures in Gas-Discharge Nonneutral Electron Plasma: IV. Pulse Ejection of Electrons at the mutual interaction of Vortex Structures

TL;DR

This paper experimentally investigates how vortex structures in gas-discharge nonneutral electron plasma cause periodic electron ejection, revealing pulse dynamics and interaction effects during vortex approach.

Contribution

It provides new insights into the pulse ejection mechanisms and vortex interactions in nonneutral plasma, which were not previously characterized in detail.

Findings

Electron ejection occurs in short and long pulses.

Vortex structures periodically approach and interact, causing electron ejection.

Pulse dynamics depend on vortex interaction behavior.

Abstract

The results of experimental investigations of the ejection of electrons from gas-discharge nonneutral electron plasma at interaction of vortex structures have been given. The periodical approach of vortex structures causes the ejection of electrons both from the vortex structures themselves and from the adjacent regions of electron sheath to the end cathodes of discharge device. The ejection takes place in the form of short and long pulses following each other. The nature of these pulses and the dynamics of interaction of vortex structures at their approach were studied.