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Title: Compact torus

Abstract

The objective of the compact torus approach is to provide toroidal magnetic-field configurations that are based primarily on plasma currents and can be freed from closely surrounding mechanical structures. Some familiar examples are the current-carrying plasma rings of reversed-field theta pinches and relativistic-electron smoke ring experiments. The spheromak concept adds an internal toroidal magnetic field component, in order to enhance MHD stability. In recent experiments, three different approaches have been used to generate spheromak plasmas: (1) the reversed-field theta pinch; (2) the coaxial plasma gun; (3) a new quasi-static method, based on the initial formation of a toroidal plasma sleeve around a mechanical ring that generates poloidal and toroidal fluxes, followed by field-line reconnection to form a detached spheromak plasma. The theoretical and experimental MHD stability results for the spheromak configuration are found to have common features.

Authors:
Publication Date:
Research Org.:
Princeton Univ., NJ (USA). Plasma Physics Lab.
OSTI Identifier:
6813680
Alternate Identifier(s):
OSTI ID: 6813680
Report Number(s):
PPPL-1716
TRN: 81-000713
DOE Contract Number:
AM02-76CH03073
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; SPHEROMAK DEVICES; REVIEWS; ELECTRON RINGS; PLASMA MACROINSTABILITIES; REVERSE-FIELD PINCH; THETA PINCH; TOROIDAL CONFIGURATION; ANNULAR SPACE; CLOSED PLASMA DEVICES; CONFIGURATION; DOCUMENT TYPES; INSTABILITY; PINCH EFFECT; PLASMA INSTABILITY; SPACE; THERMONUCLEAR DEVICES; TOKAMAK DEVICES 700200* -- Fusion Energy-- Fusion Power Plant Technology

Citation Formats

Furth, H.P. Compact torus. United States: N. p., 1980. Web. doi:10.2172/6813680.
Furth, H.P. Compact torus. United States. doi:10.2172/6813680.
Furth, H.P. Wed . "Compact torus". United States. doi:10.2172/6813680. https://www.osti.gov/servlets/purl/6813680.
@article{osti_6813680,
title = {Compact torus},
author = {Furth, H.P.},
abstractNote = {The objective of the compact torus approach is to provide toroidal magnetic-field configurations that are based primarily on plasma currents and can be freed from closely surrounding mechanical structures. Some familiar examples are the current-carrying plasma rings of reversed-field theta pinches and relativistic-electron smoke ring experiments. The spheromak concept adds an internal toroidal magnetic field component, in order to enhance MHD stability. In recent experiments, three different approaches have been used to generate spheromak plasmas: (1) the reversed-field theta pinch; (2) the coaxial plasma gun; (3) a new quasi-static method, based on the initial formation of a toroidal plasma sleeve around a mechanical ring that generates poloidal and toroidal fluxes, followed by field-line reconnection to form a detached spheromak plasma. The theoretical and experimental MHD stability results for the spheromak configuration are found to have common features.},
doi = {10.2172/6813680},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 01 00:00:00 EDT 1980},
month = {Wed Oct 01 00:00:00 EDT 1980}
}

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