大型螺旋装置负离子基中性束试验台的构建

[Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering Pub Date : 1991-09-30 DOI:10.1109/FUSION.1991.218823

Y. Oka, A. Ando, O. Kaneko, Y. Takeiri, K. Tsumori, R. Akiyama, T. Kawamoto, K. Mineo, T. Kurata, T. Kuroda

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引用次数: 2

摘要

目前正在建设的LHD负离子基NBI(中性束注入器)测试台具有2.5 MW的中性束能力，光束能量为125 keV (H/sup 0/)/250 keV (D/sup 0/)，脉冲持续时间为10 s。正在研制的元件有:(1)浸没在真空中的大电流负离子源，由紧凑的模块离子源组成;(2)一束转储以去除高达1.6 kW/cm/sup /的高热流;(3)高泵速(450m /sup 3/ s)低温泵;(4)采用栅极关断晶闸管的250kv供电系统;(5)在0.5 s内改变光束能量的控制系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Construction of negative-ion-based neutral beam teststand for Large Helical Device (LHD)

A test stand for the negative-ion-based NBI (neutral beam injector) for the LHD, currently under construction, has neutral beam capabilities of 2.5 MW at a beam energy of 125 keV (H/sup 0/)/250 keV (D/sup 0/) and pulse duration of 10 s. Components being developed are as follows: (1) a large and high current negative ion source which is immersed in vacuum and composed of a compact modular ion source; (2) a beam dump to remove high heat flux up to 1.6 kW/cm/sup 2/; (3) a high-pumping-speed (450 m/sup 3//s) cryopump; (4) a 250-kV power supply system using a GTO (gate turn-off thyristor); and (5) a controller system to vary the beam energy within 0.5 s.<>

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[Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering

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