光谱学与光谱分析, 2017, 37 (7): 2298, 网络出版: 2017-08-30  

溴化镧闪烁体探测器性能及应用研究

Properties and Application Studies of LaBr3(Ce) Scintillation Detector
作者单位
1 地质灾害防治与地质环境保护国家重点实验室(成都理工大学), 四川 成都 610059
2 成都理工大学核技术与自动化工程学院, 四川 成都 610059
3 四川理工学院, 四川 自贡 643000
摘要
LaBr3(Ce)探测器是一种新型闪烁体探测器, 具有高光产额, 高探测效率, 高时间和空间分辨率, 高能量分辨率, 温度特性良好, 抗辐射性能良好, 操作简便等优点。 从2001年以来, 该探测器得到了迅速的研究和应用。 LaBr3(Ce)探测器在核共振荧光检测、 瞬发γ中子活化分析、 爆炸物检测、 核医学成像、 环境辐射监测、 空间辐射探测等方面的应用研究中取得了非常良好的效果。 该探测器表现出优于以往用于这些领域的探测器的性能(例如NaI(Tl)探测器、 BGO探测器、 HPGe探测器等)。 介绍了LaBr3(Ce)探测器的性能及其应用研究进展, 对代表性文献进行了简析和综述, 阐明了其良好的应用前景。
Abstract
The LaBr3(Ce) detector is a new type of scintillator detector which offers better energy resolution and higher efficiency for high-energy gamma ray in comparison with traditional detectors, for instance, NaI(Tl) detector. The LaBr3(Ce) detector has merits of a high scintillation light output with a fast decay time, a high temporal and spatial resolution, good temperature characteristics and good radiation resistance. So it was researched and applied widely since it was commercially available years ago. This paper reports not only its above-mentioned properties but also its typical application studies. In the nuclear resonance fluorescence, the detector benefitted the nondestructive assay (NDA) method by shortening the detecting time while the energy resolution was still excellent. In the prompt gamma neutron activation analysis, the advantages of it were shown by comparing with the BGO detector. In the nuclear medicine imaging, the detection with the LaBr3(Ce) detector in the myocardial perfusion in mice with sufficiently precision. It had a better ability to distinguish between tumors and normal tissues than NaI(Tl) detector. In the space radiation detection, the detector was used to detect the rays with high energy, and it shows excellent radiation resistance. In neutron detection, it has competitive properties in low neutron energy measurement. After investigating the applications of the detector, we confirm the excellence of this detector and affirm it has a good prospect in the further.

张海薇, 王磊, 冷逢庆, 庹先国, 刘明哲, 成毅, 姚付良, 李三刚, 赵柏俊, 卢位. 溴化镧闪烁体探测器性能及应用研究[J]. 光谱学与光谱分析, 2017, 37(7): 2298. ZHANG Hai-wei, WANG Lei, LENG Feng-qing, TUO Xian-guo, LIU Ming-zhe, CHENG Yi, YAO Fu-liang, LI San-gang, ZHAO Bai-jun, LU Wei. Properties and Application Studies of LaBr3(Ce) Scintillation Detector[J]. Spectroscopy and Spectral Analysis, 2017, 37(7): 2298.

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