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Study of wave–particle interaction from the linear regime to dynamical chaos in a magnetized plasma
Journal article   Open access   Peer reviewed

Study of wave–particle interaction from the linear regime to dynamical chaos in a magnetized plasma

A. Fasoli, F. Skiff and M. Q. Tran
Physics of plasmas, Vol.1(5), pp.1452-1460
05/01/1994
DOI: 10.1063/1.870695
url
http://infoscience.epfl.ch/record/119428View
Open Access

Abstract

The onset of chaotic ion dynamics in electrostatic waves is investigated in a linear magnetized plasma. The existence of a threshold for heating in agreement with the predictions of single particle Hamiltonian theories and the fast time scale for velocity space diffusion are observed in the experiment. Measurements of test‐particle dynamics indicate an exponential separation of initially close ion trajectories for amplitudes above the heating threshold. Ion orbits in the different wave–particle interaction regimes are inferred using an optical tagging diagnostic method, which provides the two point correlation function in phase space.
PHASE SPACE CORRELATION FUNCTIONS HAMILTONIAN FUNCTION TRAJECTORIES PLASMA HEATING IONS PLASMA DIAGNOSTICS PLASMA WAVES TEST PARTICLES

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