Suppression of the tearing mode by energetic ions.
Suppression of the tearing mode by energetic ions.
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DOI：
10.1103/physrevlett.63.2056
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发表时间：
1989-11
影响因子：
8.6
通讯作者：
Hegna;Bhattacharjee
中科院分区：
文献类型：
--
作者：
Hegna;Bhattacharjee
用动力学理论研究了高能离子布居数对单螺旋撕裂模非线性稳定性的影响。导出了磁岛宽度的动力学方程。结果表明，在托卡马克装置中，当高能离子密度分布的峰值正好在有理表面之外时，岛的生长可以得到抑制。由于电阻互换和自举电流的影响包括在模型中。
The effect of an energetic ion population on the nonlinear stability of a tearing mode of single helicity is determined using kinetic theory. A dynamical equation is derived for the magnetic-island width. It is shown that the island growth can be suppressed in a tokamak when the energetic ion-density profile peaks just outside the rational surface. Effects due to resistive interchanges and bootstrap currents are included in the model.