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Experimental evidence for coupling of plasma particle and heat transport in the TEXT tokamak

1990; American Physical Society; Volume: 65; Issue: 3 Linguagem: Inglês

10.1103/physrevlett.65.337

1092-0145

D. L. Brower, S. K. Kim, K. W. Wenzel, M. E. Austin, Michael S. Foster, R. F. Gandy, Neville C. Luhmann, S.C. McCool, Masaaki Nagatsu, W. A. Peebles, Ch. P. Ritz, C. X. Yu,

Ionosphere and magnetosphere dynamics

Detailed measurements of heat and particle transport are made on the TEXT tokamak by analyzing the dynamics of the postcrash sawtooth perturbation. Both the density and temperature perturbations are observed to be transported out through the confinement zone at the same rate and exhibit similar scaling with plasma parameters. The density and temperature sawteeth are in phase and highly correlated. These results suggest a strong coupling of plasma particle diffusion and heat flow.