Plasma-stability region in the T-9 finger-ring tokamak

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:7213771

Bortnikov, A V; Brevnov, N N; Gerasimov, S N; Zhukovskii, V G; Pergament, V I; Kimchenko, L N

An experimental study is made of the region of plasma stability on a plot of the discharge current vs the average plasma density for the T-9 finger-ring tokamak. It is found that the stability region has three boundaries, as in an ordinary tokamak. The processes operating at the left boundary (at a low plasma density) and at the upper boundary (the maximum current in the plasma) of the stability region in the T-9 are generally similar to those in an ordinary tokamak. At the right boundary of the stability region the processes are governed by a critical-density instability and have several new features. For example, in contrast with the situation in an ordinary tokamak, the instability involves an expansion of the current channel in the plasma, and the behavior of the boundary as a function of the plasma density is different. The differences are apparently due to the onset of a balloon instability.

• Research Organization: I. V. Kurchatov Institute of Atomic Energy, Moscow
• OSTI ID: 7213771
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 3:2; 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
700107* -- Fusion Energy-- Plasma Research-- Instabilities
CLOSED PLASMA DEVICES
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HYDROMAGNETIC WAVES
IMPURITIES
INSTABILITY
IONIZING RADIATIONS
KINK INSTABILITY
LEPTONS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RADIATIONS
RUNAWAY ELECTRONS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
X RADIATION