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Perturbative transport studies in the reversed-field pinch (Articolo in rivista)

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Perturbative transport studies in the reversed-field pinch (Articolo in rivista) (literal)

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Alternative label

Frassinetti L., M. Gobbin, L. Marrelli, P. Piovesan, P. Franz, P. Martin and B.E. Chapman (2005)
Perturbative transport studies in the reversed-field pinch
in Nuclear fusion
(literal)

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Frassinetti L., M. Gobbin, L. Marrelli, P. Piovesan, P. Franz, P. Martin and B.E. Chapman (literal)

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

Titolo

Abstract

In this paper we present the results of transient transport experiments in a reversed-field pinch device. Measurements have been made in the Madison Symmetric Torus experiment using a novel soft x-ray diagnostic. Spontaneous transient transport events are observed in enhanced confinement shots obtained using the pulsed parallel current drive technique, as a consequence of bursts of magnetic fluctuations triggered by an edge resonant m = 0 instability. The perturbed electron heat diffusivity, chi(e), is estimated through a numerical transient heat transport model, and the values thus obtained are compared with those measured in similar unperturbed enhanced confinement and standard plasmas using the power balance technique. (literal)

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