| HL-2M装置中性束注入加热系统研制进展 |
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| 引用本文： | 曹建勇,魏会领,刘鹤,邹桂清,杨宪福,张贤明,唐立新,罗萃文,余佩炫,耿少飞,周红霞,周博文,李青,何峰,罗怀宇,周健,任磊磊,潘春花,黄高扬,雷光玖,饶军,段旭如.HL-2M装置中性束注入加热系统研制进展[J].强激光与粒子束,2018,30(10):106001-1-106001-9. |
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| 作者姓名： | 曹建勇 魏会领 刘鹤 邹桂清 杨宪福 张贤明 唐立新 罗萃文 余佩炫 耿少飞 周红霞 周博文 李青 何峰 罗怀宇 周健 任磊磊 潘春花 黄高扬 雷光玖 饶军 段旭如 |
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| 作者单位： | 核工业西南物理研究院, 成都 610225 |
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| 基金项目： | 国家磁约束核聚变能发展研究专项2011GB103000国家磁约束核聚变能发展研究专项2012GB104000 |
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| 摘 要： | 为开展磁约束堆芯燃烧等离子体物理实验，正在建造的HL-2M装置拟建造3条5 MW的中性束注入加热束线。简要概述了HL-2M装置NBI加热系统的总体规划，第1条5MW-NBI加热束线的设计，离子源调试实验，注入器核心部件的安装和测试结果。通过调试，目前单个离子源引出束流达到36 A，加速电压75 kV，离子束功率达到2.4 MW，脉冲宽度3 s。通过测试发现:注入器的4条离子束汇聚角误差小于±0.1°，残留离子偏转磁体的磁场测试值与模拟计算值偏差小于±5%，注入器静态真空值达到1.0×10-3 Pa。注入器采用大型非标低温泵，低温泵的抽速达到2.40×106 L/s。第1条5MW-NBI加热束线的试装和测试结果表明，该束线能够满足HL-2M装置NBI加热的技术要求。
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| 关 键 词： | NBI加热束线 注入器 离子源 低温泵 |
| 收稿时间： | 2018-02-06 |
Latest progress of development of the neutral beam injection heating system on HL-2M Tokamak |
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| Affiliation: | Southwestern Institute of Physics, Chengdu 610225, China |
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| Abstract: | In order to carry out the physical experiment of magnetic confinement core combustion plasma, the HL-2M device under construction is intended to construct three 5 MW neutral beam injection heating lines. This paper briefly outlines the overall planning of the neutral beam injection (NBI) heating system of the HL-2M device, the design of the first 5MW-NBI heating beam line, the ion source commissioning experiment, the installation and test results of the injector core components. Through debugging, for single ion source the extraction beam current reaches 36 A, the acceleration voltage is 75 kV, the ion beam power reaches 2.4 MW, and the pulse width is 3 s. It is found by testing that the convergence angle error of 4 ion beam from the injector is less than +0.1°, the deviation between the test values and simulation values of magnetic field with deflecting magnet for deflecting residual ions is less than ±5%, and the static vacuum value of the injector reached 1.0×10-3 Pa. The injector has adopted a large non-standard cryogenic pump with a pumping speed of 2.4×106 L·s-1. The trial assembly and test results of the first 5MW-NBI heating beam show that the beam line can meet the technical requirements of NBI heating on HL-2M device. |
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