L-mode confinement model based on transport-MHD theory in tokamaks

K. Itoh, M. Yagi, Sanae Itoh, A. Fukuyama, M. Azumi

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

A theory of the L-mode confinement in tokamaks is developed based on the microscopic ballooning instability which is destabilized by the plasma transport below the critical pressure gradient against the ideal MHD instability. Destabilization by the current diffusivity and stabilization by the thermal transport and ion viscosity are analysed. The least stable mode determines the anomalous transport coefficients. The formula of the thermal transport coefficient is derived, which explains major experimental observations on L-mode confinement.

Original languageEnglish
Article number001
Pages (from-to)543-549
Number of pages7
JournalPlasma Physics and Controlled Fusion
Volume35
Issue number5
DOIs
Publication statusPublished - Dec 1 1993

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transport theory
Magnetohydrodynamics
Plasma stability
transport properties
Pressure gradient
critical pressure
Stabilization
destabilization
Viscosity
Plasmas
pressure gradients
diffusivity
Ions
stabilization
viscosity
Hot Temperature
ions

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Cite this

L-mode confinement model based on transport-MHD theory in tokamaks. / Itoh, K.; Yagi, M.; Itoh, Sanae; Fukuyama, A.; Azumi, M.

In: Plasma Physics and Controlled Fusion, Vol. 35, No. 5, 001, 01.12.1993, p. 543-549.

Research output: Contribution to journalArticle

Itoh, K, Yagi, M, Itoh, S, Fukuyama, A & Azumi, M 1993, 'L-mode confinement model based on transport-MHD theory in tokamaks', Plasma Physics and Controlled Fusion, vol. 35, no. 5, 001, pp. 543-549. https://doi.org/10.1088/0741-3335/35/5/001
Itoh, K. ; Yagi, M. ; Itoh, Sanae ; Fukuyama, A. ; Azumi, M. / L-mode confinement model based on transport-MHD theory in tokamaks. In: Plasma Physics and Controlled Fusion. 1993 ; Vol. 35, No. 5. pp. 543-549.
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