Electron thermal transport barrier and density fluctuation reduction in a toroidal helical plasma

被引：150

作者：

Fujisawa, A

Iguchi, H

Minami, T

Yoshimura, Y

Sanuki, H

Itoh, K

Lee, S

Tanaka, K

Yokoyama, M

Kojima, M

Itoh, SI

Okamura, S

Akiyama, R

Ida, K

Isobe, M

Morita, S

Nishimura, S

Osakabe, M

Shimizu, A

Takahashi, C

Toi, K

Hamada, Y

Matsuoka, K

Fujiwara, M

机构：

[1] Natl Inst Fus Sci, Toki 50952, Japan

[2] Kyushu Univ, RIAM, Kasuga, Fukuoka 816, Japan

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.82.2669

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A thermal transport barrier resulting in a high central electron temperature of similar to 2 keV is established in the core of electron-cyclotron-resonance heated plasmas of the Compact Helical System Heliotron/Torsatron. The formation of the barrier is correlated with the reduction in the density fluctuations and with a structural change of the radial electric field profile at the barrier location. The results suggest that the decrease in fluctuation should contribute to a reduction of anomalous transport and a drastic increase in electron temperature at the barrier. [S0031-9007(99)08825-0].

引用

页码：2669 / 2672

页数：4

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