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Updated: Dec 7, 2025

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters
Published on: February 16, 2019
Experimental study of perturbative particle transport in the HL-2A tokamak
B Y Zhang1,2, S Inagaki1, Z B Shi2
1Research Institute for Applied Mechanics, Kyushu University, Japan.
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.
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