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Title: Conservation of magnetic helicity during plasma relaxation

Decay of the total magnetic helicity during the sawtooth relaxation in the MST Reversed-Field Pinch is much larger than the MHD prediction. However, the helicity decay (3--4%) is smaller than the magnetic energy decay (7--9%), modestly supportive of the helicity conservation hypothesis in Taylor`s relaxation theory. Enhanced fluctuation-induced helicity transport during the relaxation is observed.
Authors:
; ;
Publication Date:
OSTI Identifier:
10173796
Report Number(s):
DOE/ER/53198--244
ON: DE94016770; BR: AT051011A/AT0530020; TRN: 94:015638
DOE Contract Number:
FG02-85ER53198
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jul 1994
Research Org:
Wisconsin Univ., Madison, WI (United States). Plasma Physics Research
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MST DEVICE; HELICITY; SAWTOOTH OSCILLATIONS; MHD EQUILIBRIUM; MAGNETIC FIELDS; RELAXATION 700430; 700330; 700370; MAGNET COILS AND FIELDS; PLASMA KINETICS, TRANSPORT, AND IMPURITIES; PLASMA FLUID AND MHD PROPERTIES