闪烁体
聚苯乙烯
闪烁
中子
产量(工程)
纳米颗粒
中子探测
材料科学
光学
分析化学(期刊)
放射化学
核化学
物理
核物理学
化学
复合材料
纳米技术
色谱法
聚合物
探测器
作者
H. Tsukahara,Yutaka Fujimoto,Keisuke Asai,Masanori Koshimizu
标识
DOI:10.1016/j.jlumin.2024.120592
摘要
We have developed LiAlO2 nanoparticle-loaded polystyrene-based plastic scintillators for neutron detection and evaluated the neutron detection properties. The size of LiAlO2 nanoparticles was ∼150 nm. The distribution of nanoparticles in the plastic scintillator was uniform in the horizontal direction but non-uniform in the vertical direction. The emission peak was observed around 420 nm in the scintillation spectra and is attributed to1,4-Bis[2-(5-phenyloxazolyl)] benzene (POPOP) included as an organic phosphor. The 10 wt% LiAlO2 nanoparticle-loaded plastic scintillators containing 22 wt% 2,5-Diphenyloxazole (DPO-POPOP (the molar ratio of 80:1) had the highest light yield of 1600 photons/neutron, which is significantly higher than that of a commercially available 10B-loaded plastic scintillators (BC-454) having a light yield of 800 photons/neutron.
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