Response function measurement of Gd2Si2O7 scintillator for neutrons
Response function measurement of Gd2Si2O7 scintillator for neutrons
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DOI：
10.1109/nssmic.2007.4437266
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发表时间：
2007-10
期刊：
影响因子：
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通讯作者：
J. Haruna;H. Kaneko;Mikio Higuchi;Sohan Kawamura;Syouhei Saeki;Yasuhiro Yagi;Hiroyuki Ishibashi
中科院分区：
文献类型：
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作者：
J. Haruna;H. Kaneko;Mikio Higuchi;Sohan Kawamura;Syouhei Saeki;Yasuhiro Yagi;Hiroyuki Ishibashi
测量了Gd_2Si_2O_7（GPS）闪烁体对热中子的响应函数。GPS单晶的热中子光输出比GSO单晶高两倍。此外，进行了类似的实验，与GPS散射器的厚度为50微米，以提高中子和伽马射线之间的信噪比。GPS粉末样品，每个颗粒的尺寸为50 μ m，表现出较低的光输出比GPS单晶，因为在样品表面的闪烁光的吸收和散射降低了闪烁光的校正效率。由于本实验中粉末样品直接涂覆在玻璃板上，因此对颗粒尺寸、反射器和固定GPS样品的技术进行优化将提高粉末密度和检测效率。
Response function measurement of Gd2Si2O7 (GPS) scintillator for thermal neutrons was carried out. GPS single crystals exhibits light output twice higher than GSO single crystals for thermal neutrons. In addition, similar experiments with GPS scintillators of 50 mum in thickness were conducted to improve signal-to-noise ratio between neutrons and gamma-ray. GPS powder samples, size of each particle was 50 mum, showed lower light output than that of GPS single crystals, because absorption and scattering of scintillation light at the sample surface reduced the correction efficiency of scintillation light. Optimization of the particle size, reflectors and techniques to fix the GPS sample will improve the powder density and detection efficiency because powder samples were directly coated on a glass plate in this experiment.