Research on beam feedback control of negative ion source based on RF power regulation

Shu Xianlai; Liu Zhimin; Xie Yahong; Wang Na; Liu Wei; Wei Jianglong; Cui Qinglong; Pan Junjun; Chen Shiyong; Hu Chundong

doi:10.11884/HPLPB202234.220098

Volume 34 Issue 11

Sep. 2022

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(11): 116002

Shu Xianlai, Liu Zhimin, Xie Yahong, et al. Research on beam feedback control of negative ion source based on RF power regulation[J]. High Power Laser and Particle Beams, 2022, 34: 116002. doi: 10.11884/HPLPB202234.220098

Citation:

Shu Xianlai, Liu Zhimin, Xie Yahong, et al. Research on beam feedback control of negative ion source based on RF power regulation[J]. High Power Laser and Particle Beams, 2022, 34: 116002. doi: 10.11884/HPLPB202234.220098

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Research on beam feedback control of negative ion source based on RF power regulation

doi: 10.11884/HPLPB202234.220098

Shu Xianlai^{1, 2
,},
Liu Zhimin^{1, 2},
Xie Yahong^{1, 2
,
,},
Wang Na^{1, 2},
Liu Wei¹,
Wei Jianglong¹,
Cui Qinglong¹,
Pan Junjun¹,
Chen Shiyong¹,
Hu Chundong^{1, 2}

1.
Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
2.
University of Science and Technology of China, Hefei 230026, China

Received Date: 2022-04-06
Rev Recd Date: 2022-08-03

Available Online: 2022-07-09

Publish Date: 2022-09-20

Abstract

Abstract

Neutral beam injection systems based on RF negative ion sources are the best choice for high power long pulse (steady-state) operation of neutral beam injection systems. The negative ion source is the core component of the neutral beam injection system, which needs to achieve stable negative ion beam extraction and acceleration. During the operation of the negative ion source, the negative ion current will change, especially under long-pulse and high-energy operating conditions, so it cannot meet the requirements of stable operation. To achieve a stable extraction of the extracted beam, the research on beam feedback control was carried out and a beam feedback control system based on RF power adjustment was developed. The beam feedback control system has been applied in the RF negative ion source test platform. The test results show that the beam feedback control system can realize real-time feedback adjustment of the beam to obtain stable extraction of the beam. Beam feedback control based on RF power regulation is feasible, which provides support for the development of high-power RF negative ion sources.
- neutral beam injection,
- RF negative ion source,
- long pulse,
- stable output,
- feedback control

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References(16)

References

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