Abstract

Particle and heat transport in a low collisional plasma confined by a partially stochastic magnetic field are analysed. We show that the particle diffusion is ambipolar. Moreover near stochastic threshold, the electron heat diffusivity χ e is enhanced, so that the electron and ion heat diffusivity are equal χ e= χ i∼ D√ m i/ m e ( χ i is the ion thermal diffusivity and D the particle diffusion coefficient of both species).

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