Properties of an rf produced magnetically confined nonneutral hot electron plasma

Journal Article · Wed Nov 01 04:00:00 EST 1978 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.862149· OSTI ID:6917820

Luhmann, Jr, N C; Trivelpiece, A W

A magnetically confined, nonneutral hot electron plasma is produced by the acceleration and trapping of a low energy (approximately 1 keV) electron beam injected along the axis of an evacuated right circular cylindrical cavity resonator that is excited in the TE/sub 111/ mode with up to 15 kW of rf power at 0.88 GHz. The cavity axis coincides with that of the static magnetic mirror field (Bapprox.314 G, R/sub m/=1.3:1). The nonneutral (for approximately 10--200 msec) hot electron plasma (W/sub e/approx.100 keV, N/sub e/approx.4 x 10/sup 11/ electrons, and n/sub e/ approx.4 x 10/sup 9/ cm/sup -3/) remains trapped for approximately 10 sec. There is a periodic delB precessional motion of the trapped electron cloud at a frequency of a few MHz.

• Research Organization: Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742
• OSTI ID: 6917820
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 21:11; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ABSORPTION
BEAM INJECTION
CAVITY RESONATORS
CONFINEMENT
ELECTROMAGNETIC RADIATION
ELECTRON BEAM INJECTION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY ABSORPTION
FERMIONS
HOT PLASMA
LEPTONS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC MIRROR CONFIGURATIONS
OPEN CONFIGURATIONS
PLASMA
PLASMA CONFINEMENT
RADIATIONS
TRAPPED ELECTRONS