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Anomalous impurity diffusion in models of tokamak edge plasma turbulence
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2004 (English)In: Czechoslovak Journal of Physics, ISSN 0011-4626, E-ISSN 1572-9486, Vol. 54, no 1-3, 157-163 p.Article in journal (Refereed) Published
Abstract [en]

Using a simple spatially periodical and stationary potential as a model of electrostatic tokamak edge plasma turbulence, we have found recently [1, 2] an anomalous impurity diffusion in this regime. In this contribution, we estimate this diffusion for a more general and realistic form of the potential, which is close to the Hasegawa-Wakatani (HW) potential. As an interesting consequence of the discussed dynamics, we present, possibility of radial electric field generation in the edge turbulence regime. This effect. might play a role in tokamak scenarios with transport barriers.

Place, publisher, year, edition, pages
2004. Vol. 54, no 1-3, 157-163 p.
Keyword [en]
anomalous diffusion, radial electric field, electrostatic turbulence
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-23998DOI: 10.1007/BF03166395ISI: 000226524600023ScopusID: 2-s2.0-71449113465OAI: diva2:342697

QC 20100525 QC 20111021

Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2014-10-02Bibliographically approved

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Tendler, Michael
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Alfvén Laboratory
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