Design and Implementation of QT-based Neutral Beam Injection Control and Monitoring System for Negative Ion Sources

Liu Ao; Liang Lizhen; Zheng Xiaoliang; Zhang Liang; Liu Wei

doi:10.11884/HPLPB202537.250114

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Liu Ao, Liang Lizhen, Zheng Xiaoliang, et al. Design and Implementation of QT-based Neutral Beam Injection Control and Monitoring System for Negative Ion Sources[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250114

Citation:

Liu Ao, Liang Lizhen, Zheng Xiaoliang, et al. Design and Implementation of QT-based Neutral Beam Injection Control and Monitoring System for Negative Ion Sources[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250114

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Design and Implementation of QT-based Neutral Beam Injection Control and Monitoring System for Negative Ion Sources

doi: 10.11884/HPLPB202537.250114

Liu Ao^1
,,
Liang Lizhen^{2, 3},
Zheng Xiaoliang⁴,
Zhang Liang²,
Liu Wei^{3
,
,}

1.
School of Mechatronics Engineering, Anhui University of Science and Technology, Huainan 232001, China
2.
Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, China
3.
Hefei Institute of Material Science, Chinese Academy of Sciences, Hefei 230000 China
4.
School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China

Received Date: 2025-04-30
Accepted Date: 2025-08-12
Rev Recd Date: 2025-08-20

Available Online: 2025-09-01

Abstract

Abstract

Background
Neutral beam injection (NBI) systems are critical to fusion research and require precise control and monitoring of negative ion source. Existing solutions often have limitations in terms of development efficiency and adaptability.
Purpose
This study aims to design and implement a cost-effective, highly scalable NBI control and monitoring system for negative ion source. The system is specifically designed to address the inherent issues of traditional NI-PXIe hardware and LabVIEW-FPGA architectures, such as lengthy development cycles, high hardware costs, and limited scalability.
Methods
A modular control solution is proposed, utilizing a domestically produced PXIe platform, a Linux real-time system, and the Qt5.9 framework. By replacing imported components with locally sourced hardware and leveraging optimizations in the Linux real-time kernel, precise control is achieved. A multi-threaded control program is developed using C++ object-oriented programming to enhance system flexibility and overcome scalability limitations.
Results
Experimental verification confirmed that the system achieved microsecond-level synchronisation accuracy. Compared with traditional methods, this solution has significant advantages in scalability and control accuracy, meeting all experimental requirements for time-sensitive operations in negative ion source NBI.
Conclusions
The QT-based system successfully addresses the limitations of traditional NBI control architectures in terms of cost and scalability. By adopting localised hardware, Linux real-time system, and modular C++ design, the system provides reliable performance for complex ion source experiments. This approach establishes a flexible framework that can adapt to further enhancements in future NBI systems.
- Negative ion source,
- Neutral beam injection,
- PXIe,
- Control and Monitoring System,
- Linux real-time system

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References(15)

References

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