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Abstract

Microinstabilities are a major candidate to explain anomalous transport and thus have been extensively investigated. In particular, Ion Temperature Gradient modes seem to play an important part in ion confinement. These modes have been thoroughly studied, first through dispersion relations and ballooning representation .

Recently some evidence has been noticed that sheared E x B flows could be responsible for creation of internal transport barriers in fusion devices, thus improving confinement. If so, these flows should strongly affect the ITG instability. So far, their effect in tokamaks has only been studied via ballooning representation although it has been established that this representation breaks down for strong values of these flows. .

Additional information

Authors: MACCIO, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH);VACLAVIK J, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH);VILLARD L, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH)
Bibliographic Reference: Article: Theory of Fusion Plasmas, (1999), 511-517
Record Number: 199910861 / Last updated on: 1999-06-25
Category: PUBLICATION
Original language: en
Available languages: en