Quasilinear relaxation of trapped. cap alpha. particles in a cyclotron magnetosonic instability in a tokamak reactor

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:5769757

Mikhailovskii, A B; Lominadze, D G; Kaladze, T D; Tsamalashvili, L V

Equations are derived to describe the quasilinear relaxation of trapped high-energy ions which are interacting through a cyclotron resonance with fast magnetosonic waves. The equations are used to study the relaxation of trapped ..cap alpha.. particles in the case of a cyclotron magnetosonic instability in a tokamak reactor. It is shown analytically and through numerical calculations that this relaxation is pulsed, as in certain other problems of this type, so that the onset of the instability should be accompanied by periodic bursts of oscillations at harmonics of the ..cap alpha.. cyclotron frequency. The instability should also cause a slight broadening of the energy spectrum of the trapped ..cap alpha.. particles, and this broadening should grow logarithmically.

• Research Organization: I. V. Kurchatov Institute of Atomic Energy, Moscow
• OSTI ID: 5769757
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 5:2; ISSN SJPPD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ALFVEN WAVES
ALPHA PARTICLES
CHARGED PARTICLES
CLOSED PLASMA DEVICES
CYCLOTRON RESONANCE
HYDROMAGNETIC WAVES
INSTABILITY
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
QUASILINEAR PROBLEMS
RELAXATION
RESONANCE
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TRAPPED-PARTICLE INSTABILITY