Resonances between high energy particles and ideal magnetohydrodynamic modes in tokamaks

Autor:	Vinicius Duarte, Herbert L Berk, N. N. Gorelenkov, Roscoe White
Rok vydání:	2018
Předmět:	Physics High energy particle Ideal (set theory) Resonance Eigenfunction Condensed Matter Physics Kinetic energy 01 natural sciences 010305 fluids & plasmas Computational physics Distortion 0103 physical sciences Particle Magnetohydrodynamic drive 010306 general physics
Zdroj:	Physics of Plasmas. 25:102504
ISSN:	1089-7674 1070-664X
DOI:	10.1063/1.5046655
Popis:	Particle trajectory surfaces in an ideal magnetohydrodynamic high energy particle resonance are studied using kinetic Poincare plots and through a calculation by perturbing near the resonance and finding canonical variables in the resonance, allowing the study of the distortion of the structure from that of a simple pendulum and to assist in the construction of models for the modification of particle distributions due to the modes. It is found that the narrow structure of an ideal mode eigenfunction can lead to a significant decrease in the resonance width compared to a case in which the eigenfunction does not vary within the resonant island.
Databáze:	OpenAIRE
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