rf driven multicusp H− ion source

An rf driven multicusp source capable of generating 1‐ms H− beam pulses with a repetition rate as high as 150 Hz has been developed. This source can be operated with a filament or other types of starter. There is almost no lifetime limitation and a clean plasma can be maintained for a long period of...

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Bibliographic Details
Published in:Review of scientific instruments 1991-01, Vol.62 (1), p.100-104
Main Authors: Leung, K. N., DeVries, G. J., DiVergilio, W. F., Hamm, R. W., Hauck, C. A., Kunkel, W. B., McDonald, D. S., Williams, M. D.
Format: Article
Language:English
Subjects:
Atomic, molecular and charged-particle sources and detectors
Charged-particle beam sources and detectors
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
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Summary:An rf driven multicusp source capable of generating 1‐ms H− beam pulses with a repetition rate as high as 150 Hz has been developed. This source can be operated with a filament or other types of starter. There is almost no lifetime limitation and a clean plasma can be maintained for a long period of operation. It is demonstrated that rf power as high as 25 kW could be coupled inductively to the plasma via a glass‐coated copper‐coil antenna. The extracted H− current density achieved is about 200 mA/cm2.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1142315