Anomalous impurity diffusion in models of tokamak edge plasma turbulence
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
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.
anomalous diffusion, radial electric field, electrostatic turbulence
IdentifiersURN: urn:nbn:se:kth:diva-23998DOI: 10.1007/BF03166395ISI: 000226524600023ScopusID: 2-s2.0-71449113465OAI: oai:DiVA.org:kth-23998DiVA: diva2:342697
QC 20100525 QC 201110212010-08-102010-08-102014-10-02Bibliographically approved