External kink modes as a model for MHD activity associated with ELMs

Technical Report · Wed Jan 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/5934895· OSTI ID:5934895

Manickam, J

Tokamak plasmas in the high confinement mode of operation are known to exhibit edge localized activity referred to as ELMs. A model is proposed for the underlying cause in terms of the external kink mode. The build up of the current density near the plasma edge is shown to decrease the shear in the safety-factor, q, profile and lead to destabilization of the kink mode. The role of the plasma geometry and equilibrium profiles is discussed.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5934895
• Report Number(s): PPPL-2819; ON: DE92006646
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
EDGE LOCALIZED MODES
MHD EQUILIBRIUM
KINK INSTABILITY
CURRENT DENSITY
H-MODE PLASMA CONFINEMENT
TOKAMAK DEVICES
CLOSED PLASMA DEVICES
CONFINEMENT
EQUILIBRIUM
INSTABILITY
PLASMA CONFINEMENT
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR DEVICES
700310* - Plasma Confinement- (1992-)
700370 - Plasma Fluid & MHD Properties- (1992-)
700340 - Plasma Waves
Oscillations
& Instabilities- (1992-)