Small multicusp H/sup -/ source

Journal Article · Mon Feb 29 23:00:00 EST 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1139859· OSTI ID:5470786

Leung, K N; Ehlers, K W; Hauck, C A; Kunkel, W B; Lietzke, A F

High-quality H/sup -/ beams have been generated from a multicusp source equipped with a permanent magnet filter. It is shown that a large improvement in H/sup -/ yield can be achieved by employing a small multicusp source, fabricated with the proper wall material and extraction chamber length. From this small source, H/sup -/ current densities higher than 250 mA/cm/sup 2/ have been extracted from a 1-mm-diam aperture for a discharge voltage of 150 V and a discharge current of 450 A. When the source is operated with deuterium, the extractable negative ion current density is reduced by approximately 30%.

• Research Organization: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5470786
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:3; ISSN RSINA
• Country of Publication: United States
• Language: English

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CURRENT DENSITY
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CUSPED GEOMETRIES
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DEUTERIUM
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