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Simulation on the compressed field-reversed configuration with alpha particle self-heating

Xiaoming Zhao, Chengwei Sun, Qizhi Sun, Yuesong Jia2019年Plasma Physics and Controlled FusionIF 2.2出版社

Study on the compression of field-reversed configuration (FRC) by a magnetic-driven solid liner is carried out based on a one-dimensional code. In the investigation, plasma self-heating effect by alpha particles is taken into account. Numerical results show that the self-heating of alpha particles to DT plasma mainly occurs in the vicinity of O-point of the FRC target. The plasma ignition region is divided into two parts: the low-density ignition region near the central axis and the high-density ignition region in the O-point area. Before FRC plasma target expansion, the energy of alpha particles is well confined nearby the O-point by compressed magnetics. The DT plasma volume burning exists in a short time (approximately 0.1 µs) after a maximum convergence ratio of solid liner and the compressed strong magnetic field degrades the propagation of FRC plasma burning.

日本語訳

磁気駆動固体ライナーによる磁場反転配位(FRC)の圧縮に関する研究を、一次元コードに基づいて実施した。本調査では、アルファ粒子によるプラズマ自己加熱を考慮した。数値計算の結果、DTプラズマに対するアルファ粒子の自己加熱は、主にFRCターゲットのO点近傍で発生することが示された。プラズマ点火領域は、中心軸近傍の低密度点火領域とO点領域の高密度点火領域の2つに分けられる。FRCプラズマターゲットの膨張前に、アルファ粒子のエネルギーは圧縮された磁場によってO点近傍に良好に閉じ込められる。DTプラズマ体積燃焼は、固体ライナーの最大収束比後、約0.1μsの短時間で存在し、圧縮された強磁場がFRCプラズマ燃焼の伝播を劣化させる。

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Field-Reversed ConfigurationAlpha particle
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