Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Magnetic multipole line-cusp plasma generator for neutral beam injectors

Journal Article · · Rev. Sci. Instrum.; (United States)
DOI:https://doi.org/10.1063/1.1135651· OSTI ID:6771030
; ; ;
The magnetic multipole line-cusp device developed by MacKenzie and associates has been adapted for use as a neutral beam ion source. It has produced high-density, large volume, quiescent, uniform hydrogen plasmas, which makes it a potential candidate for use as a plasma generator for neutral beam injectors. The device is a water-cooled cylindrical copper discharge chamber (25 cm in diameter by 36 cm long) with one end enclosed by a set of extraction grids with a 15-cm-diam multi-aperture pattern. The chamber wall serves as an anode and is surrounded by an external system of rare-earth cobalt magnets arranged in a line-cusp geometry of 12 cusps; plasma is produced by electron emission from a hot cathode assembly. This source has achieved extracted beam currents of 12 A at 18.5 kV, radial plasma density uniformities of +- 5% over a 15-cm diameter, noise levels of less than +- 0.5%, and arc efficiencies (beam current/arc power) of 0.6 A/kW.
Research Organization:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
OSTI ID:
6771030
Journal Information:
Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 50:1; ISSN RSINA
Country of Publication:
United States
Language:
English

Similar Records

DuoPIGatron ion sources for PLT injectors
Conference · Fri Dec 31 23:00:00 EST 1976 · OSTI ID:5366666
15 cm duoPIGatron ion source
Journal Article · Sun May 01 00:00:00 EDT 1977 · Rev. Sci. Instrum.; (United States) · OSTI ID:7304318
Cusp width and power flow study at a high power magnetic multipole ion source
Journal Article · Thu Oct 01 00:00:00 EDT 1987 · Phys. Fluids; (United States) · OSTI ID:5914398

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700106* -- Fusion Energy-- Plasma Research-- Plasma Production-- (-1987)
ATOM COLLISIONS
BEAM INJECTION
BEAM-PLASMA SYSTEMS
CATIONS
CHARGED PARTICLES
COLLISIONS
CONFINEMENT
ELECTRON COLLISIONS
ELECTRON EMISSION
ELECTRON TEMPERATURE
ELECTRON-ATOM COLLISIONS
EMISSION
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION SOURCES
IONS
MAGNETIC FIELD CONFIGURATIONS
MEAN FREE PATH
NEUTRAL ATOM BEAM INJECTION
NOISE
PLASMA CONFINEMENT
PLASMA DENSITY