Construction of negative-ion-based NBI system in Large Helical Device

被引：0
|
作者：
Takeiri, Y [1 ]
Kaneko, O [1 ]
Oka, Y [1 ]
Tsumori, K [1 ]
Osakabe, M [1 ]
Akiyama, R [1 ]
Kawamoto, T [1 ]
Asano, E [1 ]
机构：
[1] Natl Inst Fus Sci, Gifu 50952, Japan
来源：
17TH IEEE/NPSS SYMPOSIUM ON FUSION ENGINEERING, VOLS 1 AND 2 | 1998年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high-power negative-ion-based NBI system is now under construction for Large Helical Device (LHD). The neutral beam injection power and energy are designed to be 15 MW and 180 keV, respectively, for hydrogen, and the purse duration is 10 sec. Two beamlines are installed to LHD, the injection direction of which is tangential and balanced with each other. Two large negative-ion sources are attached side-by-side to each beamline, which produce 180 keV-40 A of the negative ion beam. The prototype ion source has just started operation in the negative NBI teststand, and produced 106 keV-21 A of the negative ion beam. The fabrication of the beamline components and the power supplies have been almost finished. The installation to LHD starts in October and is completed in March, 1998. After the commissioning and the conditioning, the injection to LHD is scheduled in September, 1998.
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页码：409 / 412
页数：4
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