Toroidal magnetic confinement of non-neutral plasmas

被引：0

作者：

Yoshida, Z ^{[1
]}

Ogawa, Y ^{[1
]}

Morikawa, J ^{[1
]}

Himura, H ^{[1
]}

Kondo, S ^{[1
]}

Nakashima, C ^{[1
]}

Kakuno, S ^{[1
]}

Iqbal, M ^{[1
]}

Volponi, F ^{[1
]}

Shibayama, N ^{[1
]}

Tahara, S ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Frontier Sci, Tokyo 1138656, Japan

来源：

NON-NEUTRAL PLASMA PHYSICS III | 1999年 / 498卷

关键词：

D O I：

暂无

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：

A new method of toroidal non-neutral plasma trap has been developed with applying the chaos-induced radial transport of particles near a magnetic null point. A pure electron plasma is produced by injecting an electron beam. The poloidal gyroradius of an electron at the energy of 1 keV is of order 10 mm, which determines the length scale of the chaotic region. Amongst various applications of toroidal non-neutral plasmas, a possibility of producing very high-beta plasma, which is suitable for advanced fusion, has been examined. The self-electric field of a non-neutral plasma can generate a strong shear flow. When the how velocity is comparable to the Alfven speed (which is smaller than the ion sound speed, if beta > 1), a high-beta equilibrium can be produced in which the plasma pressure is primarily balanced by the dynamic pressure of the how. This configuration is described by a generalized Bernoulli law.

引用

页码：397 / 404

页数：8

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