Parametric excitation of geodesic acoustic mode continuum by drift waves
Parametric excitation of geodesic acoustic mode continuum by drift waves
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DOI：
10.1088/0031-8949/82/04/045504
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发表时间：
2010-09
期刊：
影响因子：
2.9
通讯作者：
Jun Yu;Jiaqi Dong
中科院分区：
文献类型：
--
作者：
Jun Yu;Jiaqi Dong
考虑到离子温度分布的非均匀性，研究了由漂移波激发的短程声学模（GAM）连续谱的参量过程。利用微扰方法，得到了巨原子的生长速率、漂移波边带势的径向结构和场的解析解。生长速率的表达式进行了研究，在几个条件下，包括均匀的离子温度。
Geodesic acoustic mode (GAM) continuum excitation by drift waves is studied as a parametric process, taking into account non-uniform ion temperature profiles. With a model profile, analytical results for the growth rate, the radial structures of the drift wave sideband potential and the field of GAMs are obtained perturbatively. The expression for the growth rate is investigated under several conditions, including uniform ion temperature.