Evidence of inhomogeneous thermal transport in RTP
Evidence of inhomogeneous thermal transport in RTP
复制标题
RTP 中不均匀热传输的证据
DOI：
10.1088/0029-5515/36/5/i01
复制
发表时间：
1996
期刊：
影响因子：
3.3
通讯作者：
R. Polman
中科院分区：
文献类型：
--
作者：
G. Hogeweij;C. Chu;J. D. D. Cruz;F. Luca;G. Gorini;A. Jacchia;N. Cardozo;P. Mantica;A. Oomens;M. Peters;F. Pijper;R. Polman
有强烈的迹象表明，径向电子热扩散率不是半径的光滑函数，但显示出强烈的局部变化。为了系统地研究这种不规则性，在RTP托卡马克中进行了一些专门的实验：强烈的集中加热，弹丸消融实验，微扰输运研究和稳态离轴加热。这些实验中的关键诊断是汤姆逊散射系统，其径向分辨率为小半径的1%。在锯齿等离子体中，在锯齿反转半径附近发现了输运垒。在稳态离轴加热条件下，空心电流密度分布得以维持，反向磁剪切区域的热输运特征非常低
There are strong indications that the radial electron thermal diffusivity is not a smooth function of the radius, but shows strong local variations. To investigate this irregularity systematically, a number of dedicated experiments have been carried out in the RTP tokamak: intense central heating, pellet ablation experiments, perturbative transport studies and steady state off-axis heating. The crucial diagnostic in these experiments is the Thomson scattering system, with a radial resolution of 1% of the minor radius. In sawtoothing plasmas a transport barrier has been identified near the sawtooth inversion radius. With steady state off-axis heating, hollow current density profiles have been sustained, and the region of reversed magnetic shear is characterized by very low thermal transport
影响因子：
3.3
作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox
通讯作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox