Finite Larmor radius effects on the coupled trapped electron and ion temperature gradient modes

Journal Article · Sat Sep 15 00:00:00 EDT 2007 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2768938· OSTI ID:21069832

Sandberg, I; Isliker, H; Pavlenko, V P ^[1]

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1. Department of Electrical and Computer Engineering, National Technical University of Athens, GR-157 73, Association Euratom-Hellenic Republic, Athens (Greece)

The properties of the coupled trapped electron and toroidal ion temperature gradient modes are investigated using the standard reactive fluid model and taking rigorously into account the effects attributed to the ion polarization drift and to the drifts associated with the lowest-order finite ion Larmor radius effects. In the flat density regime, where the coupling between the modes is relatively weak, the properties of the unstable modes are slightly modified through these effects. For the peak density regions, where the coupling of the modes is rather strong, these second-order drifts determine the spectra of the unstable modes near the marginal conditions.

• OSTI ID: 21069832
• Journal Information: Physics of Plasmas, Vol. 14, Issue 9; Other Information: DOI: 10.1063/1.2768938; (c) 2007 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
COUPLING
ELECTRON TEMPERATURE
ION TEMPERATURE
IONS
LARMOR RADIUS
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA FLUID EQUATIONS
POLARIZATION
TEMPERATURE GRADIENTS
TRAPPED ELECTRONS