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Title: Theory and application of maximum magnetic energy in toroidal plasmas

Abstract

The magnetic energy in an inductively driven steady-state toroidal plasma is a maximum for a given rate of dissipation of energy (Poynting flux). A purely resistive steady state of the piecewise force-free configuration, however, cannot exist, as the periodic removal of the excess poloidal flux and pressure, due to heating, ruptures the static equilibrium of the partitioning rational surfaces intermittently. The rupture necessitates a plasma with a negative q{prime}/q (as in reverse field pinches and spheromaks) to have the same {alpha} in all its force-free regions and with a positive q{prime}/q (as in tokamaks) to have centrally peaked {alpha}`s.

Authors:
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10125122
Report Number(s):
PPPL-2822
ON: DE92008506
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Feb 1992
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOROIDAL CONFIGURATION; MAGNETIC FIELDS; ENERGY; POYNTING THEOREM; H-MODE PLASMA CONFINEMENT; SAWTOOTH OSCILLATIONS; 700310; PLASMA CONFINEMENT

Citation Formats

Chu, T K. Theory and application of maximum magnetic energy in toroidal plasmas. United States: N. p., 1992. Web. doi:10.2172/10125122.
Chu, T K. Theory and application of maximum magnetic energy in toroidal plasmas. United States. https://doi.org/10.2172/10125122
Chu, T K. 1992. "Theory and application of maximum magnetic energy in toroidal plasmas". United States. https://doi.org/10.2172/10125122. https://www.osti.gov/servlets/purl/10125122.
@article{osti_10125122,
title = {Theory and application of maximum magnetic energy in toroidal plasmas},
author = {Chu, T K},
abstractNote = {The magnetic energy in an inductively driven steady-state toroidal plasma is a maximum for a given rate of dissipation of energy (Poynting flux). A purely resistive steady state of the piecewise force-free configuration, however, cannot exist, as the periodic removal of the excess poloidal flux and pressure, due to heating, ruptures the static equilibrium of the partitioning rational surfaces intermittently. The rupture necessitates a plasma with a negative q{prime}/q (as in reverse field pinches and spheromaks) to have the same {alpha} in all its force-free regions and with a positive q{prime}/q (as in tokamaks) to have centrally peaked {alpha}`s.},
doi = {10.2172/10125122},
url = {https://www.osti.gov/biblio/10125122}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 1992},
month = {Sat Feb 01 00:00:00 EST 1992}
}