Finite-. beta. ion mixing mode in sheared magnetic geometry

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Phys. Fluids; (United States)

OSTI ID:6766251

Migliuolo, S

The theory of ion temperature gradient driven instabilities (ion mixing modes) is presented for finite-..beta.. plasmas in sheared magnetic fields. Specifically the strong instability of long wavelength modes (perpendicular wavelengths larger than the ion gyral radius) is considered and it is analytically shown that these modes cannot be stabilized at reasonable values of ..beta.., where shear Alfven dynamics are the dominant electromagnetic effect. The strong instability, with chemically bond..omega../k/sub parallel/v/sub T//sub i/chemically bond>1, persists in the regime m/sub e//m/sub i/<..beta..<1.

• Research Organization: Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge,Massachusetts 02139
• OSTI ID: 6766251
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 30:3; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ALFVEN WAVES
ANALYTICAL SOLUTION
BETA RATIO
DYNAMICS
HYDROMAGNETIC WAVES
INSTABILITY
ION TEMPERATURE
MAGNETIC FIELD CONFIGURATIONS
MECHANICS
OSCILLATION MODES
PLASMA
PLASMA INSTABILITY
SHEAR
TEMPERATURE GRADIENTS