Magnetohydrodynamic activity in high-β, currentless plasmas in Heliotron-E
Magnetohydrodynamic activity in high-β, currentless plasmas in Heliotron-E
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Heliotron-E 中高β、无电流等离子体的磁流体动力学活动
DOI：
10.1103/physrevlett.53.2242
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发表时间：
1984
影响因子：
8.6
通讯作者：
K. Uo
中科院分区：
文献类型：
--
作者：
J. Harris;O. Motojima;H. Kaneko;S. Besshou;H. Zushi;M. Wakatani;F. Sano;S. Sudo;A. Sasaki;K. Kondo;M. Sato;T. Mutoh;T. Mizuuchi;M. Iima;T. Obiki;A. Iiyoshi;K. Uo
电子回旋加速器和中性束加热已被用来在日光加速器-E 装置中产生约等于1--2% 的无电流等离子体。对于中等峰值轮廓，已观察到在 iota = 1 表面达到峰值的磁流体动力学活动。波动的特征与 m = 1 压力驱动不稳定性的理论预期一致。磁流体动力学活动与粒子和能量损失有关，但尚未与全球限制直接相关。
Electron-cyclotron and neutral-beam heating have been used to produce currentless plasmas with roughly-equal1--2% in the heliotron-E device. For moderately peaked profiles, magnetohydrodynamic activity that peaks at the iota = 1 surface has been observed. The characteristics of the fluctuations are consistent with theoretical expectations for an m = 1 pressure-driven instability. The magnetohydrodynamic activity is associated with particle and energy losses but has not yet been directly linked to global confinement.