Influence of sawtooth oscillations on fast ions in a stellarator

D. Moseev, M. Zanini, H. Kasahara, Heinrich Laqua, H. Funaba, Wataru Hayashi, W. Heidbrink, K. Ida, H. Igami, Yasuko Kawamoto, Naoki Kenmochi, S. Lazerson, Masaki Nishiura, R. Ochoukov, Kunihiro Ogawa, M. R. Larsen, M. Salewski, T. Seki, N. Tamura, Kenji Tanaka, T. Tokuzawa, M. Yoshinuma
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Abstract

Sawtooth oscillations in tokamaks frequently lead to the redistribution of energetic ions, mainly on passing orbits, causing their expulsion from the core. This paper discusses the first measurements of the interaction of fast ions and sawteeth in the Large Helical Device (LHD). The crashes, caused by changed rotational transform profile due to electron cyclotron current drive (ECCD) and neutral beam current drive (NBCD), show no redistribution effect on fast ions in the core or at the edge.
锯齿振荡对恒星器中快速离子的影响
托卡马克中的锯齿振荡经常导致高能离子的重新分布,主要是在经过的轨道上,导致它们被驱逐出核心。本文讨论了在大型螺旋装置(LHD)中对快速离子和锯齿相互作用的首次测量。由电子回旋电流驱动(ECCD)和中性束电流驱动(NBCD)引起的旋转变换剖面变化所造成的碰撞表明,对核心或边缘的快离子没有重新分布的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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