Impurity ion transport by filamentary plasma structures

Autor: Hiroki Hasegawa, Seiji Ishiguro
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Nuclear Materials and Energy, Vol 19, Iss , Pp 473-478 (2019)
Druh dokumentu: article
ISSN: 2352-1791
DOI: 10.1016/j.nme.2019.04.005
Popis: We have studied the impurity ion transport by a filamentary plasma structure with the three-dimensional electrostatic particle-in-cell simulation. The effective diffusivity of the impurity ions transported by a filamentary plasma structure has been calculated from the simulation result. The sequence of simulations has revealed that the effective diffusivity of impurity ions has a positive correlation with the poloidal size of a filament and a slight inverse correlation with the ion temperature, and that the effective diffusivity becomes quite small in the heavy impurity ion mass case. Keywords: Blob, Hole, Boundary layer transport, Impurity ion, Particle-in-cell simulation
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