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中国无机分析化学:2024,14(6):749-757
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基于可移动中子源的瞬发γ活化成像研究进展
程 璨1, 赵 冬2, 梁旭文2, 杨晓艳3, 贾文宝2, 夏勋荣1, 顾加雨1
(1.江苏省计量科学研究院(江苏省能源计量数据中心);2.南京航空航天大学;3.内蒙古自治区计量测试研究院)
Advances in prompt gamma activation imaging based on a removable neutron source
Cheng Can1, Zhao2, Liang Xuwen2, Yang Xiaoyan3, Jia Wen-Bao2, Xia Xunrong1, Gu Jiayu1
(1.Jiangsu Institute of Metrology (Jiangsu Energy Measurement Data Center);2.Nanjing University of Aeronautics and Astronautics;3.(Inner Mongolia Institute of Metrology and Testing Research)
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投稿时间:2024-02-27    修订日期:2024-03-11
中文摘要: 瞬发γ活化成像技术基于瞬发γ射线中子活化分析,结合准直测量或者伴随粒子测量手段,以实现对样品内部中元素位置分布的测量。当前大多数相关研究都是基于大型中子源开展的,这限制了该技术的应用场景,可移动小型化中子源是该技术现场应用的必然要求。基于可移动中子源的瞬发伽马活化成像技术按照准直方式可分为基于单孔准直、编码孔准直及伴随粒子测量三类,本文对其技术原理、研究进展及仍存在的问题进行介绍与讨论。目前的技术在空间分辨率上还需要进一步提升,未来将进一步结合图像处理算法提高成像质量并降低测量时间。
Abstract:The prompt gamma activation imaging technique is based on prompt gamma-ray neutron activation analysis, combined with collimation or associated particle measurements to realize the measurement of the position distribution of the elements inside the sample. Currently, most of the related researches are carried out based on large neutron sources, which limits the application scenarios of this technique, and the mobile miniaturized neutron source is an inevitable requirement for the field application of this technique. The prompt gamma activation imaging technique based on the movable neutron source can be divided into three categories according to the collimation method, which are based on single-hole collimation, coded-hole collimation, and accompanying particle measurement, and this paper introduces and discusses the technical principle, research progress, and the problems that still exist. The spatial resolution still needs to be improved. In the future, it will be further combined with image processing algorithms to improve the imaging quality and reduce the measurement time.
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基金项目:国家自然科学基金(No.12105143, No.42374226, No.11975121), 中国博士后科学基金(2023M741453),江苏省市场监督管理局科技计划项目(KJ2024009,KJ2024044,KJ2023015)资助
引用文本:
程 璨,赵 冬,梁旭文,杨晓艳,贾文宝,夏勋荣,顾加雨.基于可移动中子源的瞬发γ活化成像研究进展[J].中国无机分析化学,2024,14(6):749-757.
Cheng Can,Zhao,Liang Xuwen,Yang Xiaoyan,Jia Wen-Bao,Xia Xunrong,Gu Jiayu.Advances in prompt gamma activation imaging based on a removable neutron source[J].Chinese Journal of Inorganic Analytical Chemistry,2024,14(6):749-757.

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