论文标题
EJ-309，EJ-276和新型有机玻璃的比较闪烁性能
Comparative scintillation performance of EJ-309, EJ-276, and a novel organic glass
论文作者
论文摘要
由桑迪亚国家实验室开发的有机玻璃闪烁体的特征是其光输出和脉搏形状辨别（PSD）特性，并与商业液体（EJ-309）和塑料（EJ-276）有机闪烁体进行了比较。通过$^{137} $ CS Compton Edge位置的相对比较来确定电子光输出。使用劳伦斯·伯克利国家实验室的88英寸回旋体的双飞行器技术测量质子的光产率。使用可调的宽光谱中子源和一系列脉冲歧义观测闪烁体，对EJ-309（200 KeV $ -3.2 MEV），EJ-276，EJ-276（170 KEV $ -4.9米V $ -4.9 mev）和有机玻璃（50 kev $ $ 20 MEV）进行了对Proton光的持续测量。最后，使用AMBE源评估了有机玻璃，EJ-309和EJ-276的PSD特性，并通过合格度量图进行了比较。与EJ-309和EJ-276相比，有机玻璃表现出更高的电子光输出。它的质子光产率和PSD性能与EJ-309相当，并且与EJ-276相当。凭借这些性能特征，有机玻璃闪烁体有很好的准备，可以在一系列快速中子检测应用中替代当前具有PSD功能的最新能力。
An organic glass scintillator developed by Sandia National Laboratories was characterized in terms of its light output and pulse shape discrimination (PSD) properties and compared to commercial liquid (EJ-309) and plastic (EJ-276) organic scintillators. The electron light output was determined through relative comparison of the $^{137}$Cs Compton edge location. The proton light yield was measured using a double time-of-flight technique at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory. Using a tunable broad-spectrum neutron source and an array of pulse-shape-discriminating observation scintillators, a continuous measurement of the proton light yield was performed for EJ-309 (200 keV$-$3.2 MeV), EJ-276 (170 keV$-$4.9 MeV), and the organic glass (50 keV$-$20 MeV). Finally, the PSD properties of the organic glass, EJ-309, and EJ-276 were evaluated using an AmBe source and compared via a figure-of-merit metric. The organic glass exhibited a higher electron light output than both EJ-309 and EJ-276. Its proton light yield and PSD performance were comparable to EJ-309 and superior to that of EJ-276. With these performance characteristics, the organic glass scintillator is well poised to replace current state-of-the-art PSD-capable scintillators in a range of fast neutron detection applications.
