论文标题
EJ-276闪烁材料的中子硬度
Neutron hardness of EJ-276 scintillation material
论文作者
论文摘要
本文介绍了在玛丽亚研究反应堆中执行的EJ-276闪烁体的快速中子照射（E $ _n $> 0.5Mev）的结果，其流动性高达5.3 $ \ times $ 10 $^{15} $颗粒/cm $ $^2 $。在我们的工作中，测试了四个尺寸$ 25.4〜mm $ \ times $ 5〜mm的样品。提出了在照射之前和之后使用Pube源的光产率，发射和吸收光谱以及中子/伽马歧视的变化。确定了基于不同中子和不同短门整合时间的电荷整合方法中的中子/伽马区分中的优点。
This paper presents the results of the fast neutron irradiation (E$_n$ > 0.5MeV) of an EJ-276 scintillator performed in the MARIA research reactor with fluence up to 5.3$\times$10$^{15}$ particles/cm$^2$. In our work, four samples with size $ϕ$25.4~mm$\times$5~mm were tested. The changes in the light yield, emission and absorption spectrum and neutron/gamma discrimination using PuBe source before and after irradiation are presented. The figure of merit in neutron/gamma discrimination based on the charge integration method for different neutron fluences and different short gate integration times are determined.
