Published 1985 | Version v1
Book Metadata-only

Development of a volume produced H/sup -/ ion source

Creators

  • 1. Div. of Thermonuclear Fusion Research, Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken

Description

Using two types of multipole plasma sources, the authors have tried to increase the current density of volume produced H/sup -/ ion beams at lower operating pressures. One source has a cylindrical, high magnetic field, large volume discharge chamber, where the plasma confinement is extremely good. The other is a medium size, rectangular plasma source equipped with a strong magnetic filter. It was found that not only the low electron temperature but the high ratio of the molecular ion component in the plasma are necessary to enhance the H/sup -/ ion yield. These conditions are satisfied in the latter source. At an optimum magnetic filter configuration, the source produced a 15 mA/cm/sup 2/ H/sup -/ ion beam for 0.2 sec with the beam energy of 10 keV at the low pressure of 0.7 Pa

Additional details

Publishing Information

Publisher
The Institute of Electrical Engineers of Japan.
Imprint Place
Tokyo (Japan)
Imprint Title
Proceedings of the ninth symposium on ion sources and ion-assisted technology
Journal Page Range
p. 121-124.

Conference

Title
9. symposium on ion sources and ion-assisted technology.
Dates
3-5 Jun 1985.
Place
Kyoto (Japan).

INIS

Country of Publication
Japan
Country of Input or Organization
United States
INIS RN
18049183
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BEAM CURRENTS; CURRENT DENSITY; ELECTROMAGNETIC FILTERS; ELECTRON TEMPERATURE; HYDROGEN IONS; HYDROGEN IONS 1 MINUS; ION SOURCES; JAERI; MAGNETIC FIELDS; MOLECULAR IONS; NEUTRAL ATOM BEAM INJECTION; NEUTRAL BEAM SOURCES; OPERATION; OPTIMIZATION; PLASMA CONFINEMENT; QUANTUM EFFICIENCY; SPECIFICATIONS; THERMONUCLEAR REACTORS
Descriptors DEC
ANIONS; BEAM INJECTION; CHARGED PARTICLES; CONFINEMENT; CURRENTS; EFFICIENCY; FILTERS; IONS; JAPANESE ORGANIZATIONS; NATIONAL ORGANIZATIONS