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Abstract

This paper proposes a new approach for solving the general problem of charged particle orbits in an axisymmetric toroidal configuration. This method is based upon the guiding centre theory and gives a general classification of the topological properties of the trajectories. For a typical tokamak plasma, fifteen topological classes of orbits and their boundaries in a constant-of-motion space are found without any trajectory computation. The confinement of these energetic orbits into the plasma region is discussed. This new approach may be applied mainly to charged fusion products and runaway electrons produced during disruptions.

Additional information

Authors: DOLOC C M, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);MARTIN G, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: Report: EUR-CEA-FC-1523 EN (1994) 42 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
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