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Relativistic guiding centre drift orbits in canonical and magnetic coordinates

W A Cooper1997年Plasma Physics and Controlled FusionIF 2.2出版社

The Hamiltonian formulation of the guiding centre drift orbits for three-dimensional (3D) toroidal configurations with general time-dependent electric and magnetic field structures has been extended to cover relativistic particles. For static 3D magnetic fields with nested magnetic surfaces, a mapping procedure from the equilibrium to the canonical coordinates is outlined. This transformation is shown to be so complicated that it renders impractical most applications in canonical coordinates. For magnetic coordinates, the transformation is straightforward. The relativistic guiding centre drift equations are explicitly derived with a constrained perturbed magnetic field that allows these coordinates to adopt a canonical structure.

日本語訳

ハミルトン形式による、一般的な時間依存電場・磁場構造を持つ三次元(3D)トロイダル配位におけるガイドセンター・ドリフト軌道の定式化は、相対論的粒子を扱うように拡張された。入れ子状の磁気面を持つ静的3D磁場に対しては、平衡座標から正準座標への写像手順が概説される。この変換は、正準座標におけるほとんどの応用を非現実的なものにするほど複雑であることが示される。磁気座標に対しては、この変換は直接的である。相対論的ガイドセンター・ドリフト方程式は、これらの座標が正準構造を採用することを可能にする拘束された摂動磁場を用いて、明示的に導出される。

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