Observation of temperature-dependent transport in the TFTR tokamak

P. C. Efthimion, D. K. Mansfield, B. C. Stratton, E. Synakowski, Amitava Bhattacharjee, H. Biglari, P. H. Diamond, Robert James Goldston, C. C. Hegna, D. McCune, G. Rewoldt, S. Scott, W. M. Tang, G. Taylor, R. E. Waltz, R. M. Wieland, M. C. Zarnstorff

Research output: Contribution to journalArticle

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Abstract

Local particle and heat transport coefficients have been measured in a temperature scan of neutral-beamheated plasmas with n, Ip, and Bcphi held constant. The electron transport is ascertained from a flux analysis of a small density perturbation, and the heat transport is obtained from the equilibrium power balance. The transport coefficients vary as Te, where =1.52.5. The observed temperature dependence is predicted by numerical calculations of anomalous transport due to trapped-particle drift-type microinstabilities.

Original languageEnglish (US)
Pages (from-to)421-424
Number of pages4
JournalPhysical review letters
Volume66
Issue number4
DOIs
StatePublished - Jan 1 1991

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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