Hefei utility negative ions test equipment with RF source: commissioning and first results

Jianglong WEI (韦江龙); Yahong XIE (谢亚红); Caichao JIANG (蒋才超); Lizhen LIANG (梁立振); Qinglong CUI (崔庆龙); Shiyong CHEN (陈世勇); Yongjian XU (许永建); Yan WANG (王艳); Li ZHANG (张黎); Yuanlai XIE (谢远来); Chundong HU (胡纯栋)

doi:10.1088/2058-6272/aadc06

Plasma Science and Technology > 2018 > 20(12): 125601. > DOI: 10.1088/2058-6272/aadc06

Jianglong WEI (韦江龙), Yahong XIE (谢亚红), Caichao JIANG (蒋才超), Lizhen LIANG (梁立振), Qinglong CUI (崔庆龙), Shiyong CHEN (陈世勇), Yongjian XU (许永建), Yan WANG (王艳), Li ZHANG (张黎), Yuanlai XIE (谢远来), Chundong HU (胡纯栋). Hefei utility negative ions test equipment with RF source: commissioning and first results[J]. Plasma Science and Technology, 2018, 20(12): 125601. DOI: 10.1088/2058-6272/aadc06

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Hefei utility negative ions test equipment with RF source: commissioning and first results

¹ Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
² University of Science and Technology of China, Hefei 230026, People’s Republic of China

Funds: This work was supported by the Key Program of Research and Development of Hefei Science Center, CAS (No. 2016HSC- KPRD002) and National Natural Science Foundation of China (Nos. 11505224, 11505225, 11575240, 11675215, 11675216).

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Received Date: March 28, 2018

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Abstract

Abstract

In order to study the key technology and physics of RF driven negative ion source for neutral beam injector in China, the Hefei utility negative ions test equipment with RF source was developed at Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). Its negative ion source can be equipped with single or double RF drivers. There is a plasma expansion chamber with depth of 19 mm and an enhanced filter field. A three electrodes negative ion accelerator was employed to extract and accelerate the negative ions, which are plasma grid, extraction grid and ground grid. And there are several diagnostic tools for the plasma and beam parameters measurement. The characteristics of plasma generation, negative ion production and extraction were studied on the test equipment. The negative ion beam was extracted from the RF driven negative ion source for the first time. The detailed structure and main results are presented in this article.
- neutral beam injection,
- negative ion source,
- CFETR,
- negative ions extraction

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References (43)

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