Relaxation of spheromak plasmas toward a minimum-energy state through global magnetic fluctuations

Technical Report · Mon Jul 01 04:00:00 EDT 1985

DOI:https://doi.org/10.2172/5398558· OSTI ID:5398558

Janos, A; Hart, G W; Yamada, M

Globally coherent modes which are observed during formation in the S-1 Spheromak plasma are shown to be important for flux conversion and plasma relaxation toward a minimum-energy state. A significant finding is the temporal progression through the n = 5, 4, 3, 2; m = 1 mode sequence as q rises through rational fractions m/n, where n and m are defined by the functional dependence e/sup i(nphi + mtheta/) of the fluctuations on toroidal angle phi and poloidal angle theta. Resistive MHD analysis predicts the observed modes and the sequence of occurrence.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5398558
• Report Number(s): PPPL-2231; ON: DE85015202
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields
CLOSED PLASMA DEVICES
FLUID MECHANICS
HYDRODYNAMICS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FLUX
MAGNETOHYDRODYNAMICS
MECHANICS
PLASMA
RELAXATION
SPHEROMAK DEVICES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES