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Like-particle collisional interactions in an inhomogeneous plasma

Published online by Cambridge University Press:  13 March 2009

F. Santini
Affiliation:
Associazione EURATOM-CNEN Sulla Fusione, Centro Gas Ionizzati, Casella Postale 65, 00044 Frascati, Italy
F. Engelmann
Affiliation:
Associazione EURATOM-CNEN Sulla Fusione, Centro Gas Ionizzati, Casella Postale 65, 00044 Frascati, Italy

Abstract

A like-particle collision operator is derived for an inhomogeneous plasma with a periodic equilibrium potential which traps part of the particle population. The derivation is made in the guiding centre approximation (one-dimensional orbits along a strong magnetic field), and only resonant interactions are considered. The effect of the particle bouncing replaces that of the three-dimensional orbits in this limit. For resonances between different harmonics of the bounce motion the operator does not vanish as happens in the classical one-dimensional case. A discussion of the general equations describing this effect is presented together with some estimates.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1976

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References

REFERENCES

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