Ballooning-mode theory of trapped-electron instabilities in tokamaks
Ballooning-mode theory of trapped-electron instabilities in tokamaks
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DOI：
10.1088/0029-5515/21/3/009
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发表时间：
1981-03
期刊：
影响因子：
3.3
通讯作者：
C.Z. Cheng;L. Chen
中科院分区：
文献类型：
--
作者：
C.Z. Cheng;L. Chen
本文利用气球模理论，将托卡马克中二维束缚电子不稳定性的本征模方程简化为沿着磁力线的一维积分微分方程，并进行了解析和数值分析。主要的环形耦合效应是由于离子磁漂移，产生准束缚态。被捕获的电子响应可以被视为一个扰动，并发现去稳定的准束缚态。
Employing the ballooning-mode formalism, the two-dimensional eigenmode equation for trapped-electron instabilities in tokamaks is reduced to a one-dimensional integro-differential equation along the magnetic field lines and then analysed both analytically and numerically. Dominant toroidal coupling effects are due to ion magnetic drifts which create quasi-bound states. The trapped-electron response can be treated as a perturbation and is found to de-stabilize the quasi-bound states.