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2009 (English)In: Nuclear Fusion, ISSN 0029-5515, E-ISSN 1741-4326, Vol. 49, no 10, 104019- p.Article in journal (Refereed) Published
Abstract [en]

With the exploration of the MA plasma current regime in up to 0.5 s long discharges, RFX-mod has opened new and very promising perspectives for the reversed field pinch (RFP) magnetic configuration, and has made significant progress in understanding and improving confinement and in controlling plasma stability. A big leap with respect to previous knowledge and expectations on RFP physics and performance has been made by RFX-mod since the last 2006 IAEA Fusion Energy Conference. A new self-organized helical equilibrium has been experimentally achieved ( the Single Helical Axis-SHAx-state), which is the preferred state at high current. Strong core electron transport barriers characterize this regime, with electron temperature gradients comparable to those achieved in tokamaks, and by a factor of 4 improvement in confinement time with respect to the standard RFP. RFX-mod is also providing leading edge results on real-time feedback control of MHD instabilities, of general interest for the fusion community.

Place, publisher, year, edition, pages
2009. Vol. 49, no 10, 104019- p.
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Physical Sciences
URN: urn:nbn:se:kth:diva-32374DOI: 10.1088/0029-5515/49/10/104019ISI: 000270388300020ScopusID: 2-s2.0-70349120357OAI: diva2:410421
QC 20110413Available from: 2011-04-13 Created: 2011-04-13 Last updated: 2011-04-13Bibliographically approved

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Annibaldi, Silvia Valeria
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