Helical and straight quadrupole stabilization of the n-italic = 2 rotational instability in translated field-reversed configurations

Journal Article · Fri Aug 01 04:00:00 EDT 1986 · Phys. Fluids; (United States)

OSTI ID:5641790

Rej, D J; Armstrong, W T; Barnes, G A; Chrien, R E; Hugrass, W N; Klingner, P L; McKenna, K F; Siemon, R E; Tuszewski, M; Harned, D S

The n-italic = 2 rotational instability has been completely suppressed on translated field-reversed configurations (FRC's) in the FRX-C/T device (Phys. Fluids 29, 852 (1986)) by the application of either helical or straight quadrupole fields. Quadrupole field thresholds approximately equal to 7% and 9% of the external confinement field are required for stabilization with straight and helical coils, respectively. Comparisons with linearized magnetohydrodynamic (MHD) theory and 2 1/2 -dimensional hybrid simulations are made. The influence of quadrupoles on translation and plasma confinement is also reported.

• Research Organization: Los Alamos National Laboratory, University of California, Los Alamos, New Mexico 87545
• OSTI ID: 5641790
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 29:8; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANNULAR SPACE
CONFIGURATION
CONFINEMENT
CORRELATIONS
ENERGY
HELICAL CONFIGURATION
INHIBITION
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELD REVERSAL
MOTION
MULTIPOLES
OSCILLATION MODES
PINCH EFFECT
PLASMA
PLASMA CONFINEMENT
PLASMA INSTABILITY
QUADRUPOLES
ROTATION
SPACE
STABILIZATION
THETA PINCH
THRESHOLD ENERGY
TOROIDAL CONFIGURATION