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Turbulence and anomalous transport in magnetized plasmas: Hints from the reversed field pinch configuration
KTH, Superseded Departments, Alfvén Laboratory.
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2004 (English)In: Contributions to Plasma Physics, ISSN 0863-1042, E-ISSN 1521-3986, Vol. 44, no 06-maj, 458-464 p.Article in journal (Refereed) Published
Abstract [en]

The properties of plasma turbulence in the outer region of the Reversed Field Pinch experiments RFX and EXTRAP-T2R are reviewed. The statistical properties of fluctuations in the range of scales relevant for transport are presented. The observation of coherent structures emerging from the background turbulence and their interpretation in terms of vortices is reported. The interplay between these structures and the mean ExB flow of the plasma is demonstrated with emphasis to the action on the preferential rotation direction. The effect on the particle transport induced by the background turbulence and by the structures is discussed. Finally the methods tested to control turbulence and to mitigate the related transport are illustrated and discussed.

Place, publisher, year, edition, pages
2004. Vol. 44, no 06-maj, 458-464 p.
Keyword [en]
magnetized plasma, plasma turbulence, anomalous transport, Reversed Field Pinch, velocity shear-layer, electrostatic turbulence, relaxation phenomena, self-similarity, edge plasma, flow shear, fluctuations, intermittency, suppression, dynamics
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-23787DOI: 10.1002/ctpp.200410064ISI: 000224242600012ScopusID: 2-s2.0-5744247836OAI: diva2:342486
QC 20100525 QC 20111025Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-11-01Bibliographically approved

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Bergsåker, HenricDrake, James R.
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