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Nonlinear drift-tearing magnetic islands are studied numerically with a four-field model that includes the parallel ion dynamics. In certain regions of the parameter space, multiple solutions are found. In particular, linearly stable drift-tearing perturbations can grow to finite size magnetic islands when the amplitude of the initial perturbation is sufficiently large.

Additional information

Authors: OTTAVIANI M, Departement de Recherches sur la Fusion Controlee, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);PORCELLI F, Burning Plasma Research Group, INFM and Politecnico di Torino (IT);GRASSO D, Burning Plasma Research Group, INFM and Politecnico di Torino (IT)
Bibliographic Reference: An article published in: Physical Review Letters, week ending 13 August 2004, Volume 93, Number 7
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Record Number: 200417770 / Last updated on: 2004-11-10
Original language: en
Available languages: en
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