期刊
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
卷 67, 期 6, 页码 927-932出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNS.2020.2988555
关键词
Cs2LiLaBr6-xClx:Ce; dual-mode scintillator; gamma detector; neutron detector; pulse shape discrimination (PSD); silicon photomultiplier (SiPM)
Cs2LiLaBr6-xClx:Ce (CLLBC) has high energy resolution for gamma detection and high sensitivity for neutron detection. It is one of the neutron-gamma dual-mode scintillators developed in recent years. This work studies the performance of an 18-mm CLLBC cube for gamma and neutron detection for temperatures between - 20 degrees C and 50 degrees C. In addition, the scintillator was coupled to the SensL J- and C-series silicon photomultipliers (SiPMs) for comparison. Throughout the temperature range, better energy resolution is observed for the scintillator coupled to the J-series SiPMs which can be attributed to the higher photon detection efficiency. For thermal neutron detection, the output of the detector was recorded by a waveform digitizer and analyzed offline on a computer. To distinguish neutrons from gammas, a pulse shape discrimination technique was utilized. A good separation between neutrons and gammas is observed for all the temperatures. However, separating neutrons from the intrinsic alphas is somewhat difficult at low temperatures. In spite of this, this 18-mm CLLBC cube is a high-performance scintillator and is suitable for deployment in radiation detectors for nuclear security and safeguards applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据