Experimental study of perturbative particle transport in the HL-2A tokamak

Experimental study of perturbative particle transport in the HL-2A tokamak
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DOI：
10.1016/j.heliyon.2020.e04633
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发表时间：
2020-09
期刊：
Heliyon
影响因子：
4
通讯作者：
B.Y. Zhang;S. Inagaki;Z. Shi;W. Zhong;X. Zou;M. Jiang;Z.C. Yang;P. Shi;C.Y. Chen;G. Xiao;B. Feng;X. Song
B.Y. Zhang;S. Inagaki;Z. Shi;W. Zhong;X. Zou;M. Jiang;Z.C. Yang;P. Shi;C.Y. Chen;G. Xiao;B. Feng;X. Song
中科院分区：
综合性期刊4区
文献类型：
--
作者：
B.Y. Zhang;S. Inagaki;Z. Shi;W. Zhong;X. Zou;M. Jiang;Z.C. Yang;P. Shi;C.Y. Chen;G. Xiao;B. Feng;X. Song

文献摘要

相似文献

利用超音速分子束注入(SMBI)作为外部粒子源，在HL-2A装置上进行了微扰粒子输运实验。跟踪了边缘密度扰动的时空演化，实验得到了粒子源和通量-梯度关系。发现通量-梯度关系与扩散模型相去甚远，并揭示了三种不同的输运过程，即夹点主导过程、扩散夹点过程和间歇衰减过程。
Perturbative particle transport experiment has been performed in the HL-2A tokamak by using supersonic molecular beam injection (SMBI) as an external particle source. The spatiotemporal evolution of edge density perturbation is traced and the particle source and the flux-gradient relation are obtained experimentally. The flux-gradient relation is found to be far from the diffusive model and three different transport processes are revealed, including pinch-dominant process, diffusion-pinch process and intermittent decays.