Analytical Theory of the Geodesic Acoustic Mode in the Small and Large Orbit Drift Width Limits and its Application in a Study of Plasma Shaping Effect

GAO Zhe

Plasma Science and Technology > 2011 > 13(1): 15-20.

GAO Zhe. Analytical Theory of the Geodesic Acoustic Mode in the Small and Large Orbit Drift Width Limits and its Application in a Study of Plasma Shaping Effect[J]. Plasma Science and Technology, 2011, 13(1): 15-20.

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Analytical Theory of the Geodesic Acoustic Mode in the Small and Large Orbit Drift Width Limits and its Application in a Study of Plasma Shaping Effect

GAO Zhe(高喆)

Department of Engineering Physics, Tsinghua Univerisity, Beijing 100084, China

Funds: supported by the NSFC, under Grant No. 10990214, the Major State Basic Research Development Program of China, under Grant Nos. 2009GB105002 and 2008GB717804, and the JSPS-CAS Core University Program in Plasma and Nuclear Fusion

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Abstract

Abstract

Analytical theories of the geodesic acoustic mode (GAM) are reviewed in the small- and large-orbit drift width limits, respectively. Different physics pictures in these two limits are displayed. As an example, these two analytical methods are employed to investigate the plasma shaping effect on the frequency and collisionless damping rate of the GAM.
- geodesic acoustic mode,
- plasma shaping,
- orbit drift width,
- analytical theory

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