Transport optimization and MHD stability of a small aspect ratio toroidal hybrid stellarator

被引：25

作者：

Hirshman, SP ^{[1
]}

Spong, DA ^{[1
]}

Whitson, JC ^{[1
]}

Lynch, VE ^{[1
]}

Batchelor, DB ^{[1
]}

Carreras, BA ^{[1
]}

Rome, JA ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.80.528

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A class of small aspect ratio (A) stellarators is found that does nut rely on quasisymmetrization to achieve goad confinement. These systems depart from canonical stellarators by allowing a small net plasma current. An optimization procedure with bounce-averaged omnigeneity and other desirable physical properties as target criteria is described and applied to show the existence of a compact plasma device haring A less than or equal to 3, high beta (ratio of thermal energy to magnetic field energy), and low plasma current. The added design flexibility afforded by the plasma current leads to an attractive low-A hybrid device which is stable to magnetohydrodynamic ballooning modes for (beta) < 6%.

引用

页码：528 / 531

页数：4

共 18 条

[1] GUIDING CENTER DRIFT EQUATIONS [J].