Geodesic Acoustic Mode in Toroidally Axisymmetric Plasmas with Non-Circular Cross Sections

Chin. Phys. Lett.

2005, Vol. 22

Issue (5): 1179-1182 DOI:

Original Articles

Geodesic Acoustic Mode in Toroidally Axisymmetric Plasmas with Non-Circular Cross Sections

SHI Bing-Ren;LI Ji-Quan;DONG Jia-Qi

Southwestern Institute of Physics, PO Box 432, Chengdu 610041

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SHI Bing-Ren, LI Ji-Quan, DONG Jia-Qi 2005 Chin. Phys. Lett. 22 1179-1182

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Abstract The geodesic acoustic mode in general toroidally axisymmetric plasmas such as Tokamak and spherical torus is studied in detail. The mode structure is found and the dispersion equation is derived and solved for arbitrary toroidally axi-symmetric plasmas. Besides the finite aspect ratio, effects of elongation and triangularity on this mode are clarified.

Keywords: 52.35.Bj 52.35.Dm 52.30.-q

Published: 01 May 2005

PACS:	52.35.Bj	(Magnetohydrodynamic waves (e.g., Alfven waves))
	52.35.Dm	(Sound waves)
	52.30.-q	(Plasma dynamics and flow)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I5/01179

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