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Title: Spherical stellarator with plasma current

Abstract

Recently proposed novel concept of a spherical stellarator (P. E. Moroz, {open_quote}{open_quote}Spherical stellarator configuration,{close_quote}{close_quote} to appear in Phys. Rev. Lett) is enhanced by adding the plasma current to the otherwise pure stellarator system. The coil configuration of this ultra low aspect ratio system differs from that of a spherical tokamak by inclination of external parts of the toroidal field coils. It is shown that the configuration considered possesses many attractive properties, including: wide flexibility of operating regimes, compact design and coil simplicity, good access to the plasma, closed vacuum flux surfaces with large enclosed volume, significant external rotational transform, strong magnetic well, and a high plasma {beta} [{beta}(0) in excess of 30{percent}] equilibrium. It is shown that the bootstrap effect in a spherical stellarator, in principle, can supply the full plasma current required for the high-{beta} equilibrium. {copyright} {ital 1996 American Institute of Physics.}

Authors:
 [1]
  1. University of Wisconsin---Madison, Madison, Wisconsin 53706 (United States)
Publication Date:
OSTI Identifier:
286356
DOE Contract Number:  
FG02-88ER53263; FG02-88ER53264
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 3; Journal Issue: 8; Other Information: PBD: Aug 1996
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; STELLARATORS; DESIGN; SPHERICAL CONFIGURATION; HIGH-BETA PLASMA; THERMONUCLEAR DEVICES; ASPECT RATIO; TOKAMAK DEVICES; MAGNETIC CONFINEMENT; BOOTSTRAP CURRENT

Citation Formats

Moroz, P E, and Lodestar Research Corporation, Boulder, Colorado 80301. Spherical stellarator with plasma current. United States: N. p., 1996. Web. doi:10.1063/1.871653.
Moroz, P E, & Lodestar Research Corporation, Boulder, Colorado 80301. Spherical stellarator with plasma current. United States. doi:10.1063/1.871653.
Moroz, P E, and Lodestar Research Corporation, Boulder, Colorado 80301. Thu . "Spherical stellarator with plasma current". United States. doi:10.1063/1.871653.
@article{osti_286356,
title = {Spherical stellarator with plasma current},
author = {Moroz, P E and Lodestar Research Corporation, Boulder, Colorado 80301},
abstractNote = {Recently proposed novel concept of a spherical stellarator (P. E. Moroz, {open_quote}{open_quote}Spherical stellarator configuration,{close_quote}{close_quote} to appear in Phys. Rev. Lett) is enhanced by adding the plasma current to the otherwise pure stellarator system. The coil configuration of this ultra low aspect ratio system differs from that of a spherical tokamak by inclination of external parts of the toroidal field coils. It is shown that the configuration considered possesses many attractive properties, including: wide flexibility of operating regimes, compact design and coil simplicity, good access to the plasma, closed vacuum flux surfaces with large enclosed volume, significant external rotational transform, strong magnetic well, and a high plasma {beta} [{beta}(0) in excess of 30{percent}] equilibrium. It is shown that the bootstrap effect in a spherical stellarator, in principle, can supply the full plasma current required for the high-{beta} equilibrium. {copyright} {ital 1996 American Institute of Physics.}},
doi = {10.1063/1.871653},
journal = {Physics of Plasmas},
number = 8,
volume = 3,
place = {United States},
year = {1996},
month = {8}
}