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European contributions to the beam source design and R&D of the ITER neutral beam injectors

机译:欧洲为ITER中性射束注入器的射束源设计和研发做出的贡献

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The article reports on the progress made by the ITER European Home Team in strong interaction with the ITER Joint Central Team and the Japan Atomic Energy Research Institute regarding several key aspects of the beam source for the ITER injectors: (1) Integration of the SINGAP accelerator into the ITER injector design. This is a substantially simpler concept than the multiaperture, multigap (MAMuG) accelerator of the ITER NBI reference design that has the potential for significant cost savings and that avoids some of the weaknesses of the reference design such as the need for intermediate high voltage potentials from the high voltage power supply and pressurized gas insulation. (2) High energy negative ion acceleration using a SINGAP accelerator. (3) Long pulse (i.e. >1000 s) negative ion source operation in deuterium. (4) RF source development, which could reduce the scheduled maintenance of the ITER injectors (as it uses no filaments), and simplify the transmission line and the auxiliary power supplies for the ion source.
机译:这篇文章报告了ITER欧洲之家团队与ITER联合中央团队和日本原子能研究院进行了强有力的互动,在ITER喷射器光束源的几个关键方面取得了进展:(1)集成SINGAP加速器进入ITER注射器设计。这是一个比ITER NBI参考设计的多孔径,多间隙(MAMuG)加速器简单得多的概念,该加速器具有节省大量成本的潜力,并且避免了参考设计的某些弱点,例如需要来自中间的高压电势。高压电源和加压气体绝缘。 (2)使用SINGAP加速器进行高能负离子加速。 (3)在氘气中长脉冲(> 1000 s)负离子源运行。 (4)开发射频源,可以减少ITER注射器的定期维护(因为它不使用灯丝),并简化了离子源的传输线和辅助电源。

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