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Science 18 September 1998:
Vol. 281. no. 5384, pp. 1816 - 1817
DOI: 10.1126/science.281.5384.1816
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Perspectives

PLASMA PHYSICS:
Turbulence and Sheared Flow

Keith H. Burrell

Achieving nuclear fusion in magnetically confined plasma has been frustrated by turbulence that rips the plasma apart. In his Perspective, Burrell discusses recent efforts to understand and control microturbulence-small-scale plasma eddies that dominate the loss of energy from tokamak plasmas. Such efforts include those reported by Lin et al. in the same issue, in which numerical simulations were used to examine the ability of velocity shear in the plasma to reduce microturbulence.

The author is at General Atomics, P. O. Box 85608, San Diego, CA 92186-5608, USA. E-mail: burrell{at}gav.gat.com

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Science. ISSN 0036-8075 (print), 1095-9203 (online)