1. Experimental study of perturbative particle transport in the HL-2A tokamak
- Author
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B.Y. Zhang, S. Inagaki, Z.B. Shi, W.L. Zhong, X.L. Zou, M. Jiang, Z.C. Yang, P.W. Shi, C.Y. Chen, G.L. Xiao, B.B. Feng, and X.M. Song
- Subjects
Nuclear physics ,Plasma physics ,Tokamak ,Plasma ,Particle transport ,Supersonic molecular beam injection ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
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.
- Published
- 2020
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