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The importance of trapping in strong plasman turbulence

Published online by Cambridge University Press:  13 March 2009

P. Rolland
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
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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
Information
Journal of Plasma Physics , Volume 15 , Issue 1 , February 1976 , pp. 57 - 66
Copyright
Copyright © Cambridge University Press 1976

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References

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