Optimization and experimental validation of deuterium-tritium neutron monoenergetics for diamond detector testing

被引：0
|
作者：
Yuan, Guoliang [1 ]
Wen, Zuowei [1 ]
Zhao, Wei [1 ]
Luo, Xiaobing [2 ]
Feng, Lei [1 ]
Wei, Lingfeng [1 ]
Zhang, Jinwen [1 ]
Yang, Qingwei [1 ]
机构：
[1] Southwestern Inst Phys, Chengdu 610225, Sichuan, Peoples R China
[2] Sichuan Univ, Inst Nucl Sci & Technol, Chengdu 610065, Sichuan, Peoples R China
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2024年 / 1067卷
基金：
中国国家自然科学基金;
关键词：
Neutron source; Plasma diagnostics; Dimond detector; Neutron energy spectrum; Neutron energy spectroscopy; SPECTRA;
D O I：
10.1016/j.nima.2024.169708
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Diamond detectors are excellent tools for measuring deuterium-tritium (D-T) neutron energy spectra. It has great potential for application in the field of magnetic confinement fusion. However, the current experimental values of the energy resolution of diamond detectors are much lower than the theoretical estimates. The purpose of this study is to find a method for experimental optimization. For this purpose, the D-T neutron energy distribution of the accelerator is theoretically analyzed and simulated. A method to increase the deuteron energy to obtain a better monoenergetic neutron source is proposed. This strategy was validated experimentally. The energy resolution of diamond for D-T neutrons achieves 1.21%, a Full Width at Half Maximum of 93 keV at 7.65 MeV. It is the highest resolution recorded to date. These results demonstrate the feasibility of the optimization method.
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页数：5
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