Achievement of 1000 s plasma generation of RF source for neutral beam injector

Chundong HU (胡纯栋); Yahong XIE (谢亚红); Yongjian XU (许永建); Caichao JIANG (蒋才超); Jianglong WEI (韦江龙); Yuming GU (顾玉明); Qinglong CUI (崔庆龙); Lizhen LIANG (梁立振); Shiyong CHEN (陈世勇); Yuanlai XIE (谢远来)

doi:10.1088/2058-6272/aaf1e0

Plasma Science and Technology > 2019 > 21(2): 22001-022001. > DOI: 10.1088/2058-6272/aaf1e0

Chundong HU (胡纯栋), Yahong XIE (谢亚红), Yongjian XU (许永建), Caichao JIANG (蒋才超), Jianglong WEI (韦江龙), Yuming GU (顾玉明), Qinglong CUI (崔庆龙), Lizhen LIANG (梁立振), Shiyong CHEN (陈世勇), Yuanlai XIE (谢远来). Achievement of 1000 s plasma generation of RF source for neutral beam injector[J]. Plasma Science and Technology, 2019, 21(2): 22001-022001. DOI: 10.1088/2058-6272/aaf1e0

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Achievement of 1000 s plasma generation of RF source for neutral beam injector

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China

Funds: This work is supported by Key Program of Research and Development of Hefei Science Center, CAS (Grant No. 2016HSC-KPRD002), National Key R&D Program of China (Grant No. 2017YFE300101) and National Natural Science Foundation of China (Grant Nos. 11505224, 11505225, 11505226, 11675215).

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Received Date: October 17, 2018

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Abstract

A radio frequency (RF) ion source was developed for neutral beam injector in Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). A cylindrical driver based RF plasma source was tested and optimized for long pulse operation. Recently, the plasma source achieved 1000 s stable plasma discharge with RF power of 35 kW and source pressure of 0.7 Pa for the first time. The heat loading on each of driver components such as the Faraday shield (FS), RF coil and expansion chamber was measured by the water flow calorimeter system. The experiment results showed that FS is the component with highest heat loading and the heat loading on FS was about 65.8% of total heat loading on source. The details of the long pulse operation of RF plasma source are presented in this paper.
- neutral beam injector,
- RF ion source,
- water flow calorimeter,
- long pulse

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1.	Liu, B., Peng, X., Gu, Y. et al. Plasma discharge experiments of a Faraday shieldless driver for high-power and long-pulse radio frequency ion source for NBI application. Review of Scientific Instruments, 2024, 95(10): 103515. DOI:10.1063/5.0219356
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Achievement of 1000 s plasma generation of RF source for neutral beam injector

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