Effect of finite εβp on the ion temperature gradient mode in a tokamak

M. S. Chu; R. R. Dominguez

doi:10.1088/0029-5515/31/5/012

Effect of finite εβ_p on the ion temperature gradient mode in a tokamak

M. S. Chu, R. R. Dominguez

Institute of Space and Plasma Sciences

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The ion temperature gradient (ITG) driven mode (or η_i mode) is studied for a tokamak where the pressure gradient is sufficiently large (εβ_p1) to modify the local shear and the gradient of the magnetic field strength. It is found that these two diamagnetic modifications of the plasma equilibrium have a stabilizing effect on the ITG mode. This could contribute to the good edge confinement observed in the H-mode and the improvement of ion energy confinement in a second stability regime tokamak.

Original language	English
Pages (from-to)	951-955
Number of pages	5
Journal	Nuclear Fusion
Volume	31
Issue number	5
DOIs	https://doi.org/10.1088/0029-5515/31/5/012
Publication status	Published - 1991 May

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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AB - The ion temperature gradient (ITG) driven mode (or ηi mode) is studied for a tokamak where the pressure gradient is sufficiently large (εβp1) to modify the local shear and the gradient of the magnetic field strength. It is found that these two diamagnetic modifications of the plasma equilibrium have a stabilizing effect on the ITG mode. This could contribute to the good edge confinement observed in the H-mode and the improvement of ion energy confinement in a second stability regime tokamak.

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Effect of finite εβ_p on the ion temperature gradient mode in a tokamak

Abstract

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