Effects of orbit squeezing on ion transport processes close to magnetic axis

被引：18

作者：

Shaing, KC ^{[1
]}

Hazeltine, RD ^{[1
]}

Zarnstorff, MC ^{[1
]}

机构：

[1] PRINCETON PLASMA PHYS LAB, PRINCETON, NJ 08543 USA

来源：

PHYSICS OF PLASMAS | 1997年 / 4卷 / 05期

关键词：

D O I：

10.1063/1.872312

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

It is shown that ion thermal conductivity close to the magnetic axis in tokamaks is reduced by a factor of \S\(5/3) if (M-i/M-e)(2/3)(T-e/T-i)(4/3)/\S\(5/3)much greater than 1. Here, S is the orbit squeezing factor, M-i(M-e) is the ion (electron) mass, and T-i(T-e) is the ion (electron) temperature. The reduction reflects both the increase of the fraction of trapped particles by a factor of \S\(1/3), and the decrease of the orbit size in units of the poloidal flu?; psi by a factor of \S\(2/3). (C) 1997 American Institute of Physics.

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页码：1371 / 1374

页数：4

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