Kinetic and resistive effects on interchange instabilities for a cylindrical model spheromak
The stabilizing influence of diamagnetic drift effects on ideal and resistive interchange modes is investigated. A resistive-ballooning-mode equation is derived using a kinetic theory approach and is applied to a cylindrical model spheromak equilibrium. It is found that these kinetic effects can significantly improve the ..beta.. limits for collisionless interchange stability. For the resistive modes, the diamagnetic drift terms lead to growth rates which scale linearly with resistivity and are considerably reduced in magnitude. However, the resistive interchange growth rates estimated for near-term spheromak parameters remain significant.
- Research Organization:
- Princeton Univ., NJ (USA). Plasma Physics Lab.
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 6163958
- Report Number(s):
- PPPL-1991; ON: DE83010837
- Country of Publication:
- United States
- Language:
- English
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Nonlinear evolution of the resistive interchange mode in the cylindrical spheromak
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BALLOONING INSTABILITY
BETA RATIO
CLOSED PLASMA DEVICES
COLLISIONLESS PLASMA
EQUATIONS
FLUTE INSTABILITY
INSTABILITY
INSTABILITY GROWTH RATES
KINETIC EQUATIONS
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SPHEROMAK DEVICES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BALLOONING INSTABILITY
BETA RATIO
CLOSED PLASMA DEVICES
COLLISIONLESS PLASMA
EQUATIONS
FLUTE INSTABILITY
INSTABILITY
INSTABILITY GROWTH RATES
KINETIC EQUATIONS
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SPHEROMAK DEVICES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES