Development of H/sup -/ sources at Brookhaven National Laboratory

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:5197404

Prelec, K

Negative hydrogen ion sources have been developed at Brookhaven National Laboratory for several years, with the initial goal to design a source for accelerator applications and later on to design a large unit for applications in neutral beam injectors of magnetic fusion devices. Three types of sources were investigated, a hollow discharge duoplasmatron yielding H/sup -/currents up to 60 mA, a Penning source yielding H/sup -/ currents up to 440 mA, and a magnetron source yielding H/sup -/ currents up to 1 A. All sources operate with a mixture of hydrogen gas and cesium vapors, and H/sup -/ ions are most likely produced on cesium covered electrode surfaces. A larger model of a Penning/magnetron source was constructed and will be tested soon; it incorporates among other new features a system for the cooling of the cathode.

• Research Organization: Brookhaven National Lab., Upton, N.Y. (USA)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 5197404
• Report Number(s): BNL-23651; CONF-770940-19
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430301* -- Particle Accelerators-- Ion Sources
BEAM CURRENTS
BEAM INJECTION
BEAMS
CURRENTS
DESIGN
DUOPLASMATRONS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
HYDROGEN MINUS 1 BEAMS
ION BEAMS
ION SOURCES
MAGNETRONS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
MILLI AMP BEAM CURRENTS
NEUTRAL ATOM BEAM INJECTION
PENNING ION SOURCES
PERFORMANCE
PLASMATRONS
RESEARCH PROGRAMS