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Self-excitation of the ballooning tearing mode and the nature of anomalous transport in toroidal magnetic confinement systems

Technical Report ·
OSTI ID:6891940
;
The self-excitation of the ballooning tearing mode in toroidal systems with strong magnetic fields is discovered. This instability is driven by the pressure gradient at small islands and arises from the coupling of poloidal harmonics. This instability is always unstable with respect to perturbations of finite size. In our opinion, it is the main mechanism for plasma turbulence and therefore defines the energy confinement time in tokamaks and stellarators.
Research Organization:
New York Univ., NY (USA). Courant Inst. of Mathematical Sciences
DOE Contract Number:
FG02-86ER53223
OSTI ID:
6891940
Report Number(s):
DOE/ER/53223-17; MF-111; ON: DE87003419
Country of Publication:
United States
Language:
English

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BALLOONING INSTABILITY
CLOSED PLASMA DEVICES
CONFINEMENT TIME
ENERGY-LEVEL TRANSITIONS
EXCITATION
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC ISLANDS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
STELLARATORS
TEARING INSTABILITY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRANSPORT THEORY
TURBULENCE