Arc plasma simulation of the KAERI large ion source

The KAERI large ion source, developed for the KSTAR NBI system, recently produced ion beams of 100 keV , 50 A levels in the first half campaign of 2007. These results seem to be the best performance of the present ion source at a maximum available input power of 145 kW . A slight improvement in the...

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Bibliographic Details
Published in:Review of scientific instruments 2008-02, Vol.79 (2), p.02B902-02B902-4
Main Authors: In, S. R., Jeong, S. H., Kim, T. S.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM CURRENTS
BEAM EXTRACTION
CONTROL
ELECTRIC ARCS
ION BEAMS
ION SOURCES
KAERI
KEV RANGE
PARTICLE BEAMS
PLASMA
PLASMA SIMULATION
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Summary:The KAERI large ion source, developed for the KSTAR NBI system, recently produced ion beams of 100 keV , 50 A levels in the first half campaign of 2007. These results seem to be the best performance of the present ion source at a maximum available input power of 145 kW . A slight improvement in the ion source is certainly necessary to attain the final goal of an 8 MW ion beam. Firstly, the experimental results were analyzed to differentiate the cause and effect for the insufficient beam currents. Secondly, a zero dimensional simulation was carried out on the ion source plasma to identify which factors control the arc plasma and to find out what improvements can be expected.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.2801379