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Scaling of local core transport with Lundquist number in the reversed field pinch (Articolo in rivista)

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Scaling of local core transport with Lundquist number in the reversed field pinch (Articolo in rivista) (literal)

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A. Intravaia; L. Marrelli; P. Martin; R. Pasqualotto; P. Franz; A. Murari; G. Spizzo; T. Bolzonella; A. Canton; P. Innocente; S. Martini; M. E. Puiatti; P. Scarin; D. Terranova; M. Valisa (1999)
Scaling of local core transport with Lundquist number in the reversed field pinch
in Physical review letters (Print); American Physical Society (APS), College Pk (Stati Uniti d'America)
(literal)

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A. Intravaia; L. Marrelli; P. Martin; R. Pasqualotto; P. Franz; A. Murari; G. Spizzo; T. Bolzonella; A. Canton; P. Innocente; S. Martini; M. E. Puiatti; P. Scarin; D. Terranova; M. Valisa (literal)

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1 Consorzio RFX-Corso Stati Uniti, 4, 35127 Padova, Italy - 2 INFM and Physics Department, University of Padova, Padova, Italy - 3 INFM and Electrical Engineering Department, University of Padova, Padova, Italy. (A. Intravaia 1-2, L. Marrelli 1, P. Martin 1-2, R. Pasqualotto1, P. Franz 1-3, A. Murari 1, G. Spizzo 1-3, T. Bolzonella, A. Canton 1-3, P. Innocente 1, S. Martini 1, M. E. Puiatti 1, P. Scarin 1, D. Terranova 1-3, M. Valisa 1) (literal)

Titolo

Scaling of local core transport with Lundquist number in the reversed field pinch (literal)

Abstract

We investigate the scaling of the core energy transport with the magnetic Lundquist number S in the reversed field pinch. We analyze for the first time the electron temperature and thermal conductivity profiles and the dynamo magnetic fluctuations in a wide range of stationary plasmas produced in the RFX device at plasma current ranging between 0.2 and 1.1 MA. When S increases we measure an improvement of core confinement associated with the strengthening of the internal electron temperature profiles gradient and with the decrease of magnetic turbulence. This shows that core energy transport is related with magnetic fluctuations and can be ameliorated in high S regimes (literal)

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