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APS » Journals » Phys. Rev. Lett. » Volume 85 » Issue 10
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Phys. Rev. Lett. 85, 2120–2123 (2000)

Control of Density Fluctuations and Electron Transport in the Reversed-Field Pinch

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N. E. Lanier, D. Craig, J. K. Anderson, T. M. Biewer, B. E. Chapman, D. J. Den Hartog, C. B. Forest, and S. C. Prager
Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706

D. L. Brower and Y. Jiang
Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90095-1594

Received 24 March 2000; published in the issue dated 4 September 2000

A recent study conducted on the Madison Symmetric Torus reversed-field pinch has shown that control of density fluctuations can be achieved through modification of the current density profile. Most of the power in the density fluctuations is directly associated with core-resonant resistive tearing modes. We report that, during auxiliary current drive experiments, these density fluctuations are reduced about an order of magnitude over the entire plasma cross section and the resulting electron confinement is increased eightfold.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.2120
DOI:
10.1103/PhysRevLett.85.2120
PACS:
52.25.Fi, 52.25.Gj, 52.55.Ez
 
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