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Measurements of the MHD dynamo in the quasi-single-helicity reversed-field pinch (Articolo in rivista)

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Label

Measurements of the MHD dynamo in the quasi-single-helicity reversed-field pinch (Articolo in rivista) (literal)

Anno

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Alternative label

Piovesan P.; D. Craig; L. Marrelli; S. Cappello; P. Martin (2004)
Measurements of the MHD dynamo in the quasi-single-helicity reversed-field pinch
in Physical review letters (Print)
(literal)

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Note

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1, 3, 4: Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, Corso Stati Uniti,4 35127 Padova, Italy / 2: Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706, USA / 5: Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, Corso Stati Uniti,4 35127 Padova, Italy and Department of Physics, University of Padova, Padova, Italy (literal)

Titolo

Measurements of the MHD dynamo in the quasi-single-helicity reversed-field pinch (literal)

Abstract

The first experimental study of the MHD dynamo in a quasi-single-helicity (QSH) reversed-field pinch toroidal plasma is presented. In QSH plasmas, a dominant wave number appears in the velocity fluctuation spectrum. This velocity component extends throughout the plasma volume and couples with magnetic fluctuations to produce a significant MHD dynamo electric field. The narrowing of the velocity fluctuation spectrum and the single-mode character of the dynamo are features predicted by theory and computation, but only now are observed in experiment. (literal)

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