Instability of an induction rf discharge plasma in crossed fields with fully ionized seeding material

Journal Article · Fri Aug 01 04:00:00 EDT 1980 · Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States)

OSTI ID:6763069

Zhilinskii, A P; Kuteev, B V; Smirnov, A S; Frolov, K S

The instabilities in a nonequilibrium Ar--Cs plasma are investigated experimentally in a quasistationary induction rf discharge with the average charge state of the ionized seed material is close to unity. The experiments are performed at argon pressures of 10, 40, and 60 torr, a cesium density of 10/sup 13/--10/sup 15/ cm/sup -3/, and magnetic fields up to 20 kOe. The oscillation characteristics measured: growth rate, threshold, frequency, phase velocity, and topology of the inhomogeneities: indicate that ionization disturbances develop in the region < or approx. =0.95, and superheating instabilities dominate for >0.95. The relationship between the generation of these instabilities and the decrease in the plasma conductivity and effective Hall parameter is shown.

• Research Organization: M. I. Kalinin Leningrad Polytechnical Institute
• OSTI ID: 6763069
• Journal Information: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States) Vol. 25:8; ISSN SPTPA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ALKALI METALS
ARGON
CESIUM
DISTURBANCES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EQUILIBRIUM PLASMA
FLUIDS
GASES
HALL EFFECT
INSTABILITY
IONIZATION
LOW PRESSURE
MAGNETIC FIELDS
METALS
NONMETALS
PHYSICAL PROPERTIES
PLASMA
PLASMA INSTABILITY
RARE GASES