Observation of Chaotic Particle Transport Induced by Drift-Resonant Fluctuations in a Magnetic Dipole Field

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Abstract
The chaotic radial transport of energetic electrons trapped in a magnetic dipole field has been observed in a laboratory terrella. This transport is driven by multimode, drift-resonant plasma instabilities which are excited by the hot electron population. A transport simulation of energetic electrons interacting with a spectrum of electrostatic waves modeled on the measured fluctuations reproduces temporal features of the experimentally observed radial particle flux.