Strong E x B flow shear and reduced fluctuations in a reversed-field pinch

被引：42

作者：

Chapman, BE ^{[1
]}

Chiang, CS ^{[1
]}

Prager, SC ^{[1
]}

Sarff, JS ^{[1
]}

Stoneking, MR ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.80.2137

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Large radial electric field gradients, leading to sheared E X B flow, are observed in enhanced confinement discharges in the Madison Symmetric Torus reversed-field pinch. The flow shear develops in a narrow region in the plasma edge. Electrostatic fluctuations are reduced over the entire plasma edge with an extra reduction in the shear region. Magnetic fluctuations, resonant in the plasma core but global in extent, are also reduced. The reduction of fluctuations in the shear region is presumably due to the strong shear, but the causes of the reductions outside this region have not been established.

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页码：2137 / 2140

页数：4

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