Neoclassical tearing modes in a tokamak

Technical Report · Mon Aug 01 00:00:00 EDT 1988

DOI:https://doi.org/10.2172/6837934· OSTI ID:6837934

Hahm, T S

Linear tearing instability is studied in the banana collisionality regime in tokamak geometry. Neoclassical effects produce significant modifications of Ohm's law and the vorticity equation so that the growth rate of tearing modes driven by ..delta..' is dramatically reduced compared to the usual resistive MHD value. Consequences of this result, regarding the presence of pressure-gradient-driven neoclassical resistive interchange instabilities and the evolution of magnetic islands in the Rutherford regime, are discussed. 10 refs.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6837934
• Report Number(s): PPPL-2545; ON: DE88015823
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BANANA REGIME
CLOSED PLASMA DEVICES
DIFFERENTIAL EQUATIONS
EQUATIONS
EQUILIBRIUM
INSTABILITY
MHD EQUILIBRIUM
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PRESSURE GRADIENTS
TEARING INSTABILITY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRAPPING