Current Diffusive Ballooning Mode in a Tokamak with a Noncircular Cross Section

Masatoshi Yagi; Atsushi Fukuyama; Sanae I. Itoh; Kimitaka Itoh

doi:10.1143/JPSJ.66.379

Current Diffusive Ballooning Mode in a Tokamak with a Noncircular Cross Section

Masatoshi Yagi, Atsushi Fukuyama, Sanae I. Itoh, Kimitaka Itoh

Division of Nuclear Fusion Dynamics

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

4 Citations (Scopus)

Abstract

The eigenvalue equation for the current diffusive ballooning mode in tokamaks is derived taking the geometrical effects, i.e., triangularity and ellipticity into account. The stability boundary is obtained in the strong ballooning limit. It is found that the ellipticity plays an important role on the stability of the current diffusive ballooning mode. On the other hand, the effect of the stabilization by the triangularity appears indirectly through the magnetic well term. The geometrical effect on the transport coefficient is also discussed.

Original language	English
Pages (from-to)	379-384
Number of pages	6
Journal	journal of the physical society of japan
Volume	66
Issue number	2
DOIs	https://doi.org/10.1143/JPSJ.66.379
Publication status	Published - Feb 1997

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1143/JPSJ.66.379

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abstract = "The eigenvalue equation for the current diffusive ballooning mode in tokamaks is derived taking the geometrical effects, i.e., triangularity and ellipticity into account. The stability boundary is obtained in the strong ballooning limit. It is found that the ellipticity plays an important role on the stability of the current diffusive ballooning mode. On the other hand, the effect of the stabilization by the triangularity appears indirectly through the magnetic well term. The geometrical effect on the transport coefficient is also discussed.",

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AU - Itoh, Sanae I.

AU - Itoh, Kimitaka

PY - 1997/2

Y1 - 1997/2

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AB - The eigenvalue equation for the current diffusive ballooning mode in tokamaks is derived taking the geometrical effects, i.e., triangularity and ellipticity into account. The stability boundary is obtained in the strong ballooning limit. It is found that the ellipticity plays an important role on the stability of the current diffusive ballooning mode. On the other hand, the effect of the stabilization by the triangularity appears indirectly through the magnetic well term. The geometrical effect on the transport coefficient is also discussed.

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Current Diffusive Ballooning Mode in a Tokamak with a Noncircular Cross Section

Abstract

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