论文标题
消除LACL3中的内部活动的影响：CE CE闪烁体
Elimination of the effect of internal activity in LaCl3:Ce scintillator
论文作者
论文摘要
由于其出色的能量和时间分辨率，灯笼卤化物闪烁体检测器已被广泛用于核光谱实验。尽管具有这些优势，但这些闪烁体中的固有α和β污染物在罕见的事件检测中构成了严重的限制。在目前的工作中，具有快速数字化器的脉冲形状歧视（PSD）已被证明是一种有效的方法，可以将α污染的效果与光谱区分开。 β频谱的形状是在基于蒙特卡洛的仿真代码的帮助下生成的，并且从光谱中消除了其贡献。已经证明了固有beta和alpha活动产生的背景事件的减少。本研究将鼓励这些探测器在与核天体物理学有关的低横截面测量实验中的应用。
The Lanthanum Halide scintillator detectors have been widely used for nuclear spectroscopy experiments because of their excellent energy and time resolutions. Despite having these advantages, the intrinsic alpha and beta contaminations in these scintillators pose a severe limitation in their usage in rare-event detections. In the present work, pulse shape discrimination (PSD) with a fast digitizer has been shown to be an efficient method to separate the effect of alpha contamination from the spectrum. The shape of the beta spectrum has been generated with the help of Monte Carlo based simulation code, and its contribution has been eliminated from the spectrum. The reduction in the background events generated by both intrinsic beta and alpha activities has been demonstrated. The present study will encourage the application of these detectors in low cross-section measurement experiments relevant to nuclear astrophysics.
