Experimental study of perturbative particle transport in the HL-2A tokamak. Issue 9 (September 2020)

• Record Type: Journal Article
• Authors: Zhang, B.Y.; Inagaki, S.; Shi, Z.B.; Zhong, W.L.; Zou, X.L.; Jiang, M.; Yang, Z.C.; Shi, P.W.; Chen, C.Y.; Xiao, G.L.; Feng, B.B.; Song, X.M.
• Is Part Of: Heliyon. Volume 6:Issue 9(2020)
• Publication Date: 2020-09
• Subjects: Nuclear physics -- Plasma physics -- Tokamak -- Plasma -- Particle transport -- Supersonic molecular beam injection; Research -- Periodicals; Medical sciences -- Periodicals; Natural history -- Periodicals; Social sciences -- Periodicals; Earth sciences -- Periodicals; Physical sciences -- Periodicals; 507.2
• DOI: 10.1016/j.heliyon.2020.e04633
• Languages: English
• ISSNs: 2405-8440

Abstract

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. Abstract : Nuclear physics, Plasma physics, Tokamak, Plasma, Particle transport, Supersonic molecular beam injection