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Artigo Acesso aberto Revisado por pares
BIBTEX RIS

Gyrokinetic Microtearing Turbulence

2011; American Physical Society; Volume: 106; Issue: 15 Linguagem: Inglês

10.1103/physrevlett.106.155003

ISSN

1092-0145

Autores

H. Doerk, F. Jenko, M. J. Pueschel, D. R. Hatch,

Tópico(s)

Laser-Plasma Interactions and Diagnostics

Resumo

The nonlinear dynamics of microtearing modes in standard tokamak plasmas are investigated by means of ab initio gyrokinetic simulations. The saturation levels of the magnetic field fluctuations can be understood in the framework of a balance between (small poloidal wave number) linear drive and small-scale dissipation. The resulting heat transport is dominated by the electron magnetic component, and the transport levels are found to be experimentally relevant. Microtearing modes thus constitute another candidate for explaining turbulent transport in such toroidal systems.

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