Off-midplane launch of electron Bernstein waves for current drive in overdense plasmas
Off-midplane launch of electron Bernstein waves for current drive in overdense plasmas
复制标题
离中平面发射电子伯恩斯坦波，用于高密度等离子体中的电流驱动
DOI：
10.1063/1.873951
复制
发表时间：
2000
影响因子：
2.2
通讯作者：
A. Smirnov
中科院分区：
文献类型：
--
作者：
C. Forest;P. K. Chattopadhyay;R. Harvey;A. Smirnov
数值模拟表明，在过密集的环形等离子体(如反场箍缩和球形托卡马克)中，通过垂直发射电子伯恩斯坦波，可以实现局域有效的电流驱动。驱动电流所需的波方向性可以通过在环面中面上方或下方发射波来获得，并且是与极向磁场有关的几何效应。波的吸收很强，这是波的静电性质的结果，提供了有效的超热尾部形成和电流驱动。
Numerical modeling shows that localized, efficient current drive is possible in overdense toroidal plasmas (such as reversed field pinches and spherical tokamaks) using perpendicular launch of electron Bernstein waves. The wave directionality required for driving current can be obtained by launching the waves above or below the midplane of the torus and is a geometric effect related to the poloidal magnetic field. Wave absorption is strong, a result of the electrostatic nature of the waves, giving efficient suprathermal tail formation and current drive.