Effect of particle pinch on the fusion performance and profile features of an international thermonuclear experimental reactor-like fusion reactor

Journal Article · Wed Apr 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4916769· OSTI ID:22408310

Wang, Shijia; Wang, Shaojie ^[1]

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1. CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei 230026 (China)

The evolution of the plasma temperature and density in an international thermonuclear experimental reactor (ITER)-like fusion device has been studied by numerically solving the energy transport equation coupled with the particle transport equation. The effect of particle pinch, which depends on the magnetic curvature and the safety factor, has been taken into account. The plasma is primarily heated by the alpha particles which are produced by the deuterium-tritium fusion reactions. A semi-empirical method, which adopts the ITERH-98P(y,2) scaling law, has been used to evaluate the transport coefficients. The fusion performances (the fusion energy gain factor, Q) similar to the ITER inductive scenario and non-inductive scenario (with reversed magnetic shear) are obtained. It is shown that the particle pinch has significant effects on the fusion performance and profiles of a fusion reactor. When the volume-averaged density is fixed, particle pinch can lower the pedestal density by ∼30%, with the Q value and the central pressure almost unchanged. When the particle source or the pedestal density is fixed, the particle pinch can significantly enhance the Q value by  60%, with the central pressure also significantly raised.

• OSTI ID: 22408310
• Journal Information: Physics of Plasmas, Vol. 22, Issue 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALPHA PARTICLES
DEUTERIUM
ELECTRON TEMPERATURE
EXPERIMENTAL REACTORS
HEAVY ION FUSION REACTIONS
ION TEMPERATURE
ITER TOKAMAK
PARTICLE SOURCES
PARTICLES
PINCH EFFECT
PLASMA DENSITY
Q-VALUE
REVERSED SHEAR
SCALING LAWS
THERMONUCLEAR REACTIONS
TRANSPORT THEORY
TRITIUM