Mechanism of neoclassical tearing modes triggering by a magnetic perturbation |
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| Authors: | N Arcis SE Sharapov |
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| Institution: | EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK |
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| Abstract: | A new mechanism whereby Neoclassical Tearing Modes (NTMs) can be triggered through toroidal mode coupling to a magnetic perturbation is proposed. The physical picture is the presence of a relatively small “pre-NTM” magnetic island whose frequency is modified by the perturbation, changing polarization current effects from stabilizing to destabilizing. |
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| Keywords: | 52 30 Cv 52 35 Mw 52 35 Py 52 55 Fa |
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