The Neoclassical Fluxes and Bootstrap Current of the Energetic Alphas in the Presence of the Electric Field

QI Changwei, DING Houchang

Communications in Theoretical Physics ›› 1997, Vol. 28 ›› Issue (1) : 111-116.

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Communications in Theoretical Physics ›› 1997, Vol. 28 ›› Issue (1) : 111-116.
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The Neoclassical Fluxes and Bootstrap Current of the Energetic Alphas in the Presence of the Electric Field

  • QI Changwei, DING Houchang
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Abstract

The neoclassical transport theory of the energetic alpha particles in Tokamak is developed by means of a variational principle. The neoclassical particle, energy and current fluxes of the energetic alphas are evaluated in the presence of the electric field and in the case of retention both of electron and ion drag and pitch angle scattering by the background ions. The alpha bootstrap current and Ware flux are respectively δ-1 (δ is the inverse aspect ratio)times larger than and opposite in direction to those obtained in the past.

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QI Changwei, DING Houchang. The Neoclassical Fluxes and Bootstrap Current of the Energetic Alphas in the Presence of the Electric Field[J]. Communications in Theoretical Physics, 1997, 28(1): 111-116

References

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