论文标题
部分可观测时空混沌系统的无模型预测
Gamma and neutron separation using emission wavelengths in Eu:LiCaI scintillators
论文作者
论文摘要
长期以来，闪烁体被称为辐射探测器，并且仍在各种应用中使用。最近，含有$^6 $ li的闪光灯已被开发为中子探测器，并引起了人们的关注。 $^6 $ li吸收热中子并排放$α$+$^3 $ h，如果可以将其与背景伽玛射线分开，则可以作为中子探测器作为中子探测器。为此，我们一直在开发欧盟：lii-cai $ _2 $ _2 $ _2 $ _2 $ _2。在闪烁体检测器中，波形信息通常用于区分诸如中子和γ射线之类的颗粒。我们使用发射波长信息提出了一种新的粒子识别方法。在这项研究中，使用欧盟：licai晶体，多像素光子计数器光学传感器和长波长切割过滤器进行了实验，以验证所提出的方法。照射$^{252} $ CF中子源和$^{60} $ CO伽马射线源的结果表明，使用和不带过滤器之间的输出信号比率有粒子依赖性。这意味着不同类型的辐射颗粒具有不同的发射波长。这是基于波长的粒子识别方法的首次演示。
Scintillators have long been known as radiation detectors and are still used in various applications. Recently, scintillators containing $^6$Li have been developed as neutron detectors and have attracted attention. $^6$Li absorbs thermal neutrons and emits $α$+$^3$H, which is promising as a neutron detector if it can be separated from background gamma rays. We have been developing Eu:LiI-CaI$_2$-based scintillators (Eu:LiCaI) for this purpose. In scintillator detectors, waveform information is generally used to distinguish particles such as neutrons and gamma rays. We propose a new particle identification method using emission wavelengths information. In this study, experiments were conducted using Eu:LiCaI crystals, multi-pixel photon counter optical sensors, and long-wavelength cut filters to verify the proposed method. The results of irradiating a $^{252}$Cf neutron source and a $^{60}$Co gamma-ray source indicate that there is a particle dependence of the output signal ratio between with and without filters. This means that different types of radiation particles have different emission wavelengths. This is the first demonstration of a wavelength-based particle identification method.
