Structure of short-wavelength drift modes and transport in a toroidal plasma
Structure of short-wavelength drift modes and transport in a toroidal plasma
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DOI：
10.1088/0741-3335/38/2/009
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发表时间：
1996-02
影响因子：
2.2
通讯作者：
J. Taylor;H. Wilson;J. Connor
中科院分区：
文献类型：
--
作者：
J. Taylor;H. Wilson;J. Connor
短波长波动，例如电子和离子漂移波，可能是环形等离子体中异常传输的原因之一。本文的目的是建立这些模式的径向结构并澄清文献中的一些差异。传统形式的环形漂移模式只能发生在孤立的等离子体半径处，并且不太可能成为通用传输的来源。然而，最近描述的一类电子和离子漂移模式可以发生在所有等离子体半径处。它们的结构与反常输运一致，表现出玻姆随磁场变化而随等离子体旋转而减小。
Short-wavelength fluctuations, such as electron and ion drift waves, may be one cause of anomalous transport in toroidal plasmas. The purpose of this paper is to establish the radial structure of these modes and to clarify some discrepancies in the literature. The conventional form of toroidal drift modes can occur only at isolated plasma radii and are unlikely to be the source of a universal transport. However, a more recently described class of electron and ion drift modes can occur at all plasma radii. They have a structure consistent with an anomalous transport exhibiting the Bohm scaling with magnetic field and decreasing with plasma rotation.