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The importance of trapping in strong plasman turbulence

Published online by Cambridge University Press:  13 March 2009

P. Rolland
Affiliation:
Association Euratom-CEA, Départment de Physique du Plasman et de la Fusion Contrôlée, Service IGn, Centre d'Etudes Nucléaires, B.P. 85, Centre deTri 38041, Grenoble

Abstract

Sturrock's theory of stochastic acceleration and Dupree's theory of strong plasma turbulence are here derived in a very simple way, showing that trapping cannot correctly be taken into account by this kind of theory. A comparison of Sturrock and Dupree's diffusion coefficients D shows that they differ significantly only in the domain where these theories fail, and where the highest values of D are reached. The need for a theory taking trapped orbits into account appears clearly. Such an attempt is the object of a sequel.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1976

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References

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