Plasma shape and finite {beta} effects on stability thresholds of the ion temperature gradient modes

Journal Article · Wed Dec 01 00:00:00 EST 2004 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.1804941· OSTI ID:20643933

Jhowry, B; Andersson, J; Dastgeer, S ^[1]

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1. Department of Electromagnetics and Euratom/VR Association, Chalmers University of Technology, S-41296 Goeteborg (Sweden)

The stability of electromagnetic ion temperature gradient driven modes with emphasis on the lower and upper stability thresholds is investigated by a collisionless magnetized plasma in both circular and noncircular geometry. The stability properties are discussed and the results are compared for finite {beta} effects, arbitrary elongation, and Shafranov shift rate parameters. It has been found that the lower stability thresholds are weakly dependent on the (combined) effects of Shafranov shift rate, finite {beta}, and elongation whereas the second (upper) stability regime shows substantial dependence depending on parameter regimes.

• OSTI ID: 20643933
• Journal Information: Physics of Plasmas, Vol. 11, Issue 12; Other Information: DOI: 10.1063/1.1804941; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ION TEMPERATURE
MAGNETOHYDRODYNAMICS
PLASMA
STABILITY
TEMPERATURE GRADIENTS