Radial electric field measurements in reversed shear plasmas

被引：55

作者：

Levinton, FM ^{[1
]}

Bell, RE

Batha, SH

Synakowski, EJ

Zarnstorff, MC

机构：

[1] Fus Phys & Technol, Torrance, CA 90503 USA

[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[3] Sci Res Lab, Somerville, MA 02143 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.80.4887

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements of the radial electric field have been obtained on the Tokamak Fusion Test Reactor utilizing the motional Stark effect diagnostic. A large negative excursion in the radial electric field occurs before the transition to the enhanced reversed magnetic shear mode. The electric field is localized to a narrow spatial region and is not observed in discharges without the transition to improved confinement. Concomitant with the radial electric field excursion is a change in the measured impurity poloidal rotation velocity and bursts of magnetic fluctuations.

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页码：4887 / 4890

页数：4

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