Actions for Confinement improvement with rf poloidal current drive in the reversed-field pinch [electronic resource].

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Confinement improvement with rf poloidal current drive in the reversed-field pinch [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
16 pages : digital, PDF file
Additional Creators
University of Wisconsin--Madison, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
External control of the current profile in a reversed-field pinch (RFP), by means such as rf poloidal current drive, may have beneficial effects well beyond the direct reduction of Ohmic input power due to auxiliary heating. Reduction of magnetic turbulence associated with the dynamo, which drives poloidal current in a conventional RFP, may allow operation at lower density and higher electron temperature, for which rf current drive becomes efficient and the RFP operates in a more favorable regime on the nτ vs T diagram. Projected parameters for RFX at 2 MA axe studied as a concrete example. If rf current drive allows RFX to operate with β = 10% (plasma energy/magnetic energy) at low density (3 × 10¹⁹ m{sup −3}) with classical resistivity (i.e. without dynamo-enhanced power input), 40 ms energy confinement times and 3 keV temperatures will result, matching the performance of tokamaks of similar size.
Report Numbers
E 1.99:doe/er/53198--236
doe/er/53198--236
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
03/08/1994.
"doe/er/53198--236"
"DE94010005"
"AT051011A/AT0530020"
Sarff, J.; Hokin, S.; Sovinec, C.; Uchimoto, E.
Type of Report and Period Covered Note
Topical; 03/01/1994 - 03/01/1994
Funding Information
FG02-85ER53198
View MARC record | catkey: 14744526