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Effect of pitch angle scattering on the distribution function of fast fusion products in a tokamak plasma

V.Y. Goloborod'ko, S.N. Reznik, V.A. Yavorskij1997年被引用 5Nuclear FusionIF 3出版社

The results of a three dimensional (3-D) (in constants of motion space) Fokker-Planck simulation of the steady state collisional behaviour of fusion alphas in an axisymmetric TFTR-like tokamak plasma are presented. The distribution function of confined fusion products is shown to be strongly anisotropic and non-uniform in the radial co-ordinate. The influence of pitch angle scattering on distribution function anisotropy is investigated. It is shown that the distribution function of fast ions in the range where the cosine of the pitch angle is small is strongly influenced by this scattering. A qualitative comparison of numerical results and predictions of alpha particle distributions from previous studies is presented

日本語訳

軸対称TFTR類似トカマクプラズマにおける核融合アルファ粒子の定常状態衝突挙動の3次元(運動定数空間における)Fokker-Planckシミュレーションの結果を示す。閉じ込められた核融合生成物の分布関数は、強く異方的であり、動径座標に関して非一様であることが示される。ピッチ角散乱が分布関数の異方性に及ぼす影響を調べる。ピッチ角の余弦が小さい領域における高速イオンの分布関数は、この散乱によって強く影響を受けることが示される。数値結果と、これまでの研究によるアルファ粒子分布の予測との定性的比較を示す。

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tftr中精度(概要文一致)

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