Dissipative nonlinear structures in tokamak plasmas

A lot of different kinds of instabilities may be developed in high temperature plasma located in a strong toroidal magnetic field (tokamak plasma). Nonlinear effects in the instability development result in plasma self-organization. Such plasma has a geometrically complicated configuration, consisti...

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Main Author: K. A. Razumova
Format: Article
Language:English
Published: Wiley 2001-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/S102602260100036X
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author K. A. Razumova
author_facet K. A. Razumova
author_sort K. A. Razumova
collection DOAJ
description A lot of different kinds of instabilities may be developed in high temperature plasma located in a strong toroidal magnetic field (tokamak plasma). Nonlinear effects in the instability development result in plasma self-organization. Such plasma has a geometrically complicated configuration, consisting of the magnetic surfaces imbedded into each other and split into islands with various characteristic numbers of helical twisting. The self-consistency of the processes means that the transport coefficients in plasma do not depend just on the local parameters, being a function of the whole plasma configuration and of the forces affecting it. By disrupting the bonds between separate magnetic surfaces filled with islands, one can produce zones of reduced transport in the plasma, i.e. “internal thermal barriers”, allowing one essentially to increase the plasma temperature and density.
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institution Kabale University
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series Discrete Dynamics in Nature and Society
spelling doaj-art-6c8a687eaec04959bbe1cebd748a06fb2025-02-03T01:23:27ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2001-01-016431732410.1155/S102602260100036XDissipative nonlinear structures in tokamak plasmasK. A. Razumova0Russian Research Center, Kurchatov Institute, Moscow 123182, RussiaA lot of different kinds of instabilities may be developed in high temperature plasma located in a strong toroidal magnetic field (tokamak plasma). Nonlinear effects in the instability development result in plasma self-organization. Such plasma has a geometrically complicated configuration, consisting of the magnetic surfaces imbedded into each other and split into islands with various characteristic numbers of helical twisting. The self-consistency of the processes means that the transport coefficients in plasma do not depend just on the local parameters, being a function of the whole plasma configuration and of the forces affecting it. By disrupting the bonds between separate magnetic surfaces filled with islands, one can produce zones of reduced transport in the plasma, i.e. “internal thermal barriers”, allowing one essentially to increase the plasma temperature and density.http://dx.doi.org/10.1155/S102602260100036X
spellingShingle K. A. Razumova
Dissipative nonlinear structures in tokamak plasmas
Discrete Dynamics in Nature and Society
title Dissipative nonlinear structures in tokamak plasmas
title_full Dissipative nonlinear structures in tokamak plasmas
title_fullStr Dissipative nonlinear structures in tokamak plasmas
title_full_unstemmed Dissipative nonlinear structures in tokamak plasmas
title_short Dissipative nonlinear structures in tokamak plasmas
title_sort dissipative nonlinear structures in tokamak plasmas
url http://dx.doi.org/10.1155/S102602260100036X
work_keys_str_mv AT karazumova dissipativenonlinearstructuresintokamakplasmas