Idioma:

textbf{E}\times \textbf{B}$$ Drift Particle Transport in Tokamaks

Osorio-Quiroga, L.A. ; Grime, G.C. ; Roberto, M. ; Viana, R.L. ; Elskens, Y. ; Caldas, I.L.

Brazilian journal of physics, 2023-08, Vol.53 (4), Article 96 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por

Título:
textbf{E}\times \textbf{B}$$ Drift Particle Transport in Tokamaks
Autor: Osorio-Quiroga, L.A. ; Grime, G.C. ; Roberto, M. ; Viana, R.L. ; Elskens, Y. ; Caldas, I.L.
Assuntos: Physics
É parte de: Brazilian journal of physics, 2023-08, Vol.53 (4), Article 96
Descrição: In tokamaks, modification of the plasma profiles can reduce plasma transport, improving particle confinement. However, this improvement is still not completely understood. In this work, we consider a drift wave test particle model to investigate the influence of the electric and magnetic field profiles on plasma transport. Test particle orbits subjected to ExB drift are numerically integrated and their transport coefficient is obtained. We conclude that sheared profiles reduce particle transport, even for high amplitude perturbations. In particular, nonmonotonic electric and magnetic fields produce shearless transport barriers, which are particularly resistant to perturbations and reduce even more the transport coefficient.
Editor: Springer Verlag
Idioma: Inglês

Links

Voltar para lista de resultados