Heat Transport During H-Mode in the HL-2A Tokamak

被引：1

作者：

Huang Xianli ^{[1
]}

Shi Zhongbing ^{[1
]}

Cui Zhengying ^{[1
]}

Zhong Wulv ^{[1
]}

Dong Yunbo ^{[1
]}

Chen Chengyuan ^{[1
]}

Feng Beibin ^{[1
]}

Yao Lianghua ^{[1
]}

Liu Zetian ^{[1
]}

Ding Xuantong ^{[1
]}

Yang Qingwei ^{[1
]}

机构：

[1] Southwestern Inst Phys, Chengdu 610041, Peoples R China

来源：

PLASMA SCIENCE & TECHNOLOGY | 2013年 / 15卷 / 03期

基金：

中国国家自然科学基金;

关键词：

electron heat transport; SMBI modulation; pedestal; FUSION PLASMAS; JET;

D O I：

10.1088/1009-0630/15/3/06

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Perturbative experiments on electron heat transport have been successfully conducted on the HL-2A tokamak. The pulse propagation of the electron temperature is induced by the supersonic molecular beam injection (SMBI), which has characteristics of good localization and deep deposition. A model based on the electron heat transport in cylindrical geometry has been applied to reconstruct the measured amplitude and phase profiles of the electron temperature perturbation. The results show that the heat transport is significantly reduced near the pedestal region of the H-mode plasma. In the "profile stiffness/resilience" region, similar heat diffusivities have been observed in L-mode and H-mode plasmas, which verifies the gradient-driven transport physics in tokamaks.

引用

页码：221 / 224

页数：4

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