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Title: Alpha effect of Alfv{acute e}n waves and current drive in reversed-field pinches

Abstract

Circularly polarized Alfv{acute e}n waves give rise to an {alpha}-dynamo effect that can be exploited to drive parallel current. In a {open_quotes}laminar{close_quotes} magnetic the effect is weak and does not give rise to significant currents for realistic parameters (e.g., in tokamaks). However, in reversed-field pinches (RFPs) in which magnetic field in the plasma core is stochastic, a significant enhancement of the {alpha} effect occurs. Estimates of this effect show that it may be a realistic method of current generation in the present-day RFP experiments and possibly also in future RFP-based fusion reactors. {copyright} {ital 1998 American Institute of Physics.}

Authors:
;  [1]
  1. Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706 (United States)
Publication Date:
OSTI Identifier:
580025
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 5; Journal Issue: 3; Other Information: PBD: Mar 1998
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; ALFVEN WAVES; NON-INDUCTIVE CURRENT DRIVE; POLARIZATION; REVERSED-FIELD PINCH DEVICES; PINCH EFFECT; STOCHASTIC PROCESSES

Citation Formats

Litwin, C, and Prager, S C. Alpha effect of Alfv{acute e}n waves and current drive in reversed-field pinches. United States: N. p., 1998. Web. doi:10.1063/1.872775.
Litwin, C, & Prager, S C. Alpha effect of Alfv{acute e}n waves and current drive in reversed-field pinches. United States. https://doi.org/10.1063/1.872775
Litwin, C, and Prager, S C. 1998. "Alpha effect of Alfv{acute e}n waves and current drive in reversed-field pinches". United States. https://doi.org/10.1063/1.872775.
@article{osti_580025,
title = {Alpha effect of Alfv{acute e}n waves and current drive in reversed-field pinches},
author = {Litwin, C and Prager, S C},
abstractNote = {Circularly polarized Alfv{acute e}n waves give rise to an {alpha}-dynamo effect that can be exploited to drive parallel current. In a {open_quotes}laminar{close_quotes} magnetic the effect is weak and does not give rise to significant currents for realistic parameters (e.g., in tokamaks). However, in reversed-field pinches (RFPs) in which magnetic field in the plasma core is stochastic, a significant enhancement of the {alpha} effect occurs. Estimates of this effect show that it may be a realistic method of current generation in the present-day RFP experiments and possibly also in future RFP-based fusion reactors. {copyright} {ital 1998 American Institute of Physics.}},
doi = {10.1063/1.872775},
url = {https://www.osti.gov/biblio/580025}, journal = {Physics of Plasmas},
number = 3,
volume = 5,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 1998},
month = {Sun Mar 01 00:00:00 EST 1998}
}