Development of large scale negative ion source for LHD-NBI
Journal Article
·
· AIP Conference Proceedings
- National Institute for Fusion Science, Oroshi 322-56, Toki, Gifu 509-52 (Japan)
- TOSHIBA CO. Ukishima-chou 4-1, Kawasaki, Kanagawa (Japan)
In this paper we report the first results on a prototype negative ion source for LHD-NBI. The ion source with a multi-cusp configuration consists of the external magnetic filter and has an inner volume of 140 cm in height x35 cm in width x25 cm in depth. Two cesium lines are installed to seed cesium vapor into arc plasma for enhancement of H{sup -} current. The H{sup -} ion beam was extracted from an area of 120 cmx25 cm and was accelerated via single-stage accelerator. An H{sup -} current of about 4 A with the energy of 73 keV was obtained at the arc power of 250 kW for a duration of 0.3 sec.
- OSTI ID:
- 21199182
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 439; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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