Development of a high-yield compact D-D neutron generator

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2024-10-16 DOI:10.1016/j.nima.2024.169993

Xiaohou Bai , Jun Ma , Zhiyuan Wei , Jingying Wang , Xiaoxue Yu , Shiyu Zhang , Yongguaung Zheng , Kang Wu , Ming Li , Yaning Han , Pengqi Zhang , Junrun Wang , Zheng Wei , Zeen Yao , Yu Zhang

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Abstract

An improved high-yield compact D-D neutron generator has been developed for active neutron non-destructive interrogation at Lanzhou University in China. The generator has been meticulously designed based on the magnetic field distribution of the duoplasmatron ion source, the electric field distribution of the beam extraction acceleration system, beam transport, and target cooling system. The performance characteristics of the generator were measured under different deuterium beam energies and beam intensities. The experimental results indicated that the D-D neutron yield reached 1 × 10⁹ n/s with the deuterium beam parameter of 210 keV/6.0 mA. The operational stability of the generator was assessed for 150 min, and the test results show that the generator has better stability in operation. This generator has potential applications in neutron radiography, active interrogation of special nuclear materials, and neutron activation analysis.

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开发高产紧凑型 D-D 中子发生器

中国兰州大学为主动中子无损探测开发了一种改进型高产紧凑 D-D 中子发生器。根据双质子离子源的磁场分布、束流提取加速系统的电场分布、束流传输和靶冷却系统，对发生器进行了精心设计。在不同的氘束能量和束流强度下，对发生器的性能特征进行了测量。实验结果表明，当氘束参数为 210 keV/6.0 mA 时，D-D 中子产率达到 1 × 109 n/s。对发生器的运行稳定性进行了 150 分钟的评估，测试结果表明发生器具有较好的运行稳定性。该发生器在中子射线照相、特殊核材料的主动询问和中子活化分析方面具有潜在的应用价值。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.

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