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Title: Tearing relaxation and the globalization of transport in field-reversed configurations

Abstract

Tearing instability of field-reversed configurations (FRC) is investigated using the method of neighboring equilibria. It is shown that the conducting wall position in experiment lies very close to the location needed for tearing stability. This strongly suggests that vigorous but benign tearing modes, acting globally, are the engine of continual self-organization in FRCs, i.e., tearing relaxation. It also explains the ''profile consistency'' and anomalous loss rate of magnetic flux. In effect, tearing globalizes the effect of edge-driven transport.

Authors:
 [1];  [2]
  1. Redmond Plasma Physics Laboratory, University of Washington, Redmond, Washington 98052 (United States)
  2. Coronado Consulting, 146 Bishop Lamy Rd., Lamy, New Mexico 87540 (United States)
Publication Date:
OSTI Identifier:
21282107
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 16; Journal Issue: 9; Other Information: DOI: 10.1063/1.3223847; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MAGNETIC FLUX; MAGNETOHYDRODYNAMICS; PLASMA; REVERSE-FIELD PINCH; TEARING INSTABILITY

Citation Formats

Steinhauer, Loren, and Barnes, D. C. Tearing relaxation and the globalization of transport in field-reversed configurations. United States: N. p., 2009. Web. doi:10.1063/1.3223847.
Steinhauer, Loren, & Barnes, D. C. Tearing relaxation and the globalization of transport in field-reversed configurations. United States. doi:10.1063/1.3223847.
Steinhauer, Loren, and Barnes, D. C. Tue . "Tearing relaxation and the globalization of transport in field-reversed configurations". United States. doi:10.1063/1.3223847.
@article{osti_21282107,
title = {Tearing relaxation and the globalization of transport in field-reversed configurations},
author = {Steinhauer, Loren and Barnes, D. C.},
abstractNote = {Tearing instability of field-reversed configurations (FRC) is investigated using the method of neighboring equilibria. It is shown that the conducting wall position in experiment lies very close to the location needed for tearing stability. This strongly suggests that vigorous but benign tearing modes, acting globally, are the engine of continual self-organization in FRCs, i.e., tearing relaxation. It also explains the ''profile consistency'' and anomalous loss rate of magnetic flux. In effect, tearing globalizes the effect of edge-driven transport.},
doi = {10.1063/1.3223847},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 9,
volume = 16,
place = {United States},
year = {2009},
month = {9}
}