Observation of the effects of radially sheared electric fields on the suppression of turbulent vortex structures and the associated transverse loss in GAMMA 10

被引：60

作者：

Cho, T ^{[1
]}

Yoshida, M

Kohagura, J

Hirata, M

Numakura, T

Higaki, H

Hojo, H

Ichimura, M

Ishii, K

Islam, KM

Itakura, A

Katanuma, I

Nakashima, Y

Saito, T

Tatematsu, Y

Yoshikawa, M

Kojima, Y

Tokioka, S

Yokoyama, N

Tomii, Y

Imai, T

Pastukhov, VP

Miyoshi, S

机构：

[1] Univ Tsukuba, Plasma Res Ctr, Tsukuba, Ibaraki 3058577, Japan

[2] Russian Res Ctr, Kurchatov Inst, Moscow, Russia

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.94.085002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Vortexlike turbulent structures in hot-ion mode plasmas with several keV are observed in the case with a radially produced weak shear of electric fields E-r. However, a strong E-r shear formation due to a high ion-confining potential phi(c) production clears up these vortices together with plasma-confinement improvement and disappearance of both drift-wave and turbulencelike Fourier spectral signals. These findings are based on three-time progress in phi(c) in comparison to phi(c) attained 1992-2002. The significant advance of phi(c) is well extended in line with proposed potential-formation physics scalings.

引用

页数：4

共 32 条

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