Experimental study of perturbative particle transport in the HL-2A tokamak.
| Autor: | Zhang BY; Research Institute for Applied Mechanics, Kyushu University, Japan.; Southwestern Institute of Physics, China., Inagaki S; Research Institute for Applied Mechanics, Kyushu University, Japan., Shi ZB; Southwestern Institute of Physics, China., Zhong WL; Southwestern Institute of Physics, China., Zou XL; The French Alternative Energies and Atomic Energy Commission, France., Jiang M; Southwestern Institute of Physics, China., Yang ZC; Southwestern Institute of Physics, China., Shi PW; Southwestern Institute of Physics, China., Chen CY; Southwestern Institute of Physics, China., Xiao GL; Southwestern Institute of Physics, China., Feng BB; Southwestern Institute of Physics, China., Song XM; Southwestern Institute of Physics, China. |
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| Jazyk: | angličtina |
| Zdroj: | Heliyon [Heliyon] 2020 Sep 14; Vol. 6 (9), pp. e04633. Date of Electronic Publication: 2020 Sep 14 (Print Publication: 2020). |
| DOI: | 10.1016/j.heliyon.2020.e04633 |
| Abstrakt: | 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. (© 2020 The Authors.) |
| Databáze: | MEDLINE |
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