Microtearing instabilities and electron transport in the NSTX spherical tokamak

被引：49
|
作者：
Wong, K. L. [1 ]
Kaye, S. [1 ]
Mikkelsen, D. R. [1 ]
Krommes, J. A. [1 ]
Hill, K. [1 ]
Bell, R. [1 ]
LeBlanc, B. [1 ]
机构：
[1] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 13期
关键词：
D O I：
10.1103/PhysRevLett.99.135003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report a successful quantitative account of the experimentally determined electron thermal conductivity chi(e) in a beam-heated H mode plasma by the magnetic fluctuations from microtearing instabilities. The calculated chi(e) based on existing nonlinear theory agrees with the result from transport analysis of the experimental data. Without using any adjustable parameter, the good agreement spans the entire region where there is a steep electron temperature gradient to drive the instability.
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页数：4
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