High-. beta. , sawtooth-free tokamak operation using energetic trapped particles

Journal Article · Mon Jan 30 00:00:00 EST 1989 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.62.539· OSTI ID:6526310

White, R B; Bussac, M N; Romanelli, F

It is shown that a population of high-energy trapped particles, such as that produced by ion cyclotron heating in tokamaks, can result in a plasma completely stable to both sawtooth oscillations and the fishbone mode. The stable window of operation increases in size with plasma temperature and with trapped particle energy, and provides a means of obtaining a stable plasma with high current and high ..beta...

• Research Organization: Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543
• OSTI ID: 6526310
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 62:5
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
HIGH-BETA PLASMA
STABILITY
DISPERSION RELATIONS
ELECTRON TEMPERATURE
ICR HEATING
ION TEMPERATURE
JET TOKAMAK
KINK INSTABILITY
NEUTRAL ATOM BEAM INJECTION
OPERATION
OSCILLATION MODES
TRAPPED-PARTICLE INSTABILITY
BEAM INJECTION
HEATING
HIGH-FREQUENCY HEATING
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PLASMA MACROINSTABILITIES
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Heating
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