Energy transport in Tokamak plasmas with central current density control using fast waves

被引：39

作者：

Forest, CB

Petty, CC

Austin, ME

Baity, FW

Burrell, KH

Chiu, SC

Chu, MS

deGrassie, JS

Gohil, P

Hyat, AW

Ikezi, H

Lazarus, EA

Murakami, M

Pinsker, RI

Porkolab, M

Prater, R

Rice, BW

Staebler, GM

Strait, EJ

Taylor, TS

机构：

[1] General Atomics, San Diego, CA

[2] University of Maryland, College Park, MD

[3] Oak Ridge National Laboratory, Oak Ridge, TN

[4] Massachusetts Institute of Technology, Cambridge, MA

[5] Lawrence Livermore National Laboratory, Livermore, CA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.77.3141

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Fast wave current drive has been used to substantially modify the central current density profile in a tokamak plasma. Counter-fast wave current drive (FWCD) applied to discharges with negative central magnetic shear enhances the shear reversal and leads to a distinct transition to a mode of improved core confinement. In this state, the electron thermal diffusivity decreases by (50 +/- 20)% and the ion diffusivity by (80 +/- 20)%, compared to just before the transition. The FWCD and electron heating elucidates the role of the current profile on confinement and stability.

引用

页码：3141 / 3144

页数：4

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