Development of a dc low pressure D− surface‐conversion source using a 10‐cm‐diam solid barium converter

Autor:	C. F. Chan, Wulf B. Kunkel, W. F. Steele, Russell Wells, C. F. A. van Os, Ka-Ngo Leung, M. D. Williams, G. J. deVries, A. F. Lietzke, O. A. Anderson, J.W. Kwan, W. S. Cooper
Rok vydání:	1992
Předmět:	Materials science business.industry chemistry.chemical_element Particle accelerator Barium Charged particle Ion source law.invention Ion chemistry Neutral beam injector law Caesium Optoelectronics Atomic physics business Instrumentation Beam (structure)
Zdroj:	Review of Scientific Instruments. 63:2705-2707
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1142829
Popis:	A D− surface‐conversion source using a solid barium converter is designed for steady‐state operation to produce 200 mA of D−. A similar ion source of twice the size as the one discussed here will meet the requirements set by the present US‐ITER neutral beam injector design. Among the possible types of ion sources being considered for the US‐ITER neutral beam design, the barium converter surface‐conversion source is the only kind that does not use cesium in the discharge. This absence of cesium will minimize the number of accelerator breakdowns.
Databáze:	OpenAIRE
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