Experimental evidence of reduced plasma flow damping with quasisymmetry

被引：34

作者：

Gerhardt, SP ^{[1
]}

Talmadge, JN ^{[1
]}

Canik, JM ^{[1
]}

Anderson, DT ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.94.015002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements of plasma flow damping have been made in the helically symmetric experiment using a biased electrode to impulsively spin the plasma. There are two time scales in the evolution of the plasma flow, for both the spin-up and relaxation. Compared to a configuration with the quasisymmetry broken, the flow in the quasisymmetric configuration rises more slowly and to a higher value at bias turn-on, and decays more slowly at bias turn-off. The decays of the flows are significantly faster than the neoclassical prediction.

引用

页数：4

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