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Preliminary performance test of tubular neutron detector based on SiPM signal readout

机译：基于SiPM信号读数的管状中子探测器的初步性能测试

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摘要

Due to the shortage and the rapidly increasing price of the 3He gas, seeking new types of position-sensitive neutrondetectors is urgent. In order to fulfill the requirements of Chinese neutron spectrometers for neutron detectors, theresearch on neutron detector based on~6LiF / ZnS (Ag) scintillator and wavelength-shifting fiber (WLSF) structureneutron detectors was developed. It has the advantages of high neutron detection efficiency, good position resolutionand the ability to splicing large areas. This paper proposed a tubular neutron detector structure. It consists of two layersof rolled ~6LiF/ZnS(Ag) scintillators sandwich with two wavelength-shifting fibers, and two SiPMs (Siliconphotomultipliers) for the photons readout. By MC simulation, we obtained the thermal neutron conversion efficiency of~6LiF/ZnS(Ag) scintillation screens with different thicknesses and rolled diameters, and optimized the detector structure.The characteristics of the key components are studied. A small detector prototype has been constructed. And been testedby the neutron beam. The preliminary test results showed that the detector can work well.
机译：由于3He气体的短缺和价格的快速上涨，迫切需要寻找新型的位置敏感中子探测器。为满足中国中子能谱仪对中子探测器的要求，研制了基于〜6LiF / ZnS（Ag）闪烁体和波长移动光纤（WLSF）结构的中子探测器\ r \中子探测器。具有中子探测效率高，位置分辨率好，可拼接大面积的优点。本文提出了一种管状中子探测器结构。它由两层卷制的〜6LiF / ZnS（Ag）闪烁体构成，夹有两根波长转换光纤和两个用于光子读出的SiPM（硅\ r \ n光电倍增管）。通过MC模拟，获得了不同厚度和轧制直径的\ r \ n〜6LiF / ZnS（Ag）闪烁屏的热中子转换效率，并优化了探测器结构。\ r \ n研究了关键部件的特性。已经构造了一个小型探测器原型。并通过中子束进行了测试。初步测试结果表明，该探测器可以正常工作。

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  • 来源
  • 会议地点 0277-786X;1996-756X
  • 作者

    LIU Yun; TANG Bin; WU Chong; HUANG Chang; SUN Zhi-Jia; ZHANG Yan-chao; LIN Chun-Dan;

  • 作者单位

    China University of Petroleum (Beijing), Beijing 102249, China Dongguan Institute of Neutron Science (DINS), Dongguan 523808, China;

    State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, CAS, 100049 Beijing China Spallation Neutron Source (CSNS), Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS);

    Dongguan 523803, China Dongguan Institute of Neutron Science (DINS), Dongguan 523808, China;

    China University of Petroleum (Beijing), Beijing 102249, China China University of Petroleum-Beijing at Karamay, Karamay 834000, China;

    Dongguan Institute of Neutron Science (DINS), Dongguan 523808, China Lanzhou University, College of Science and Technology, Lanzhou 730000, China;

    State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, CAS, 100049 Beijing China Spallation Neutron Source (CSNS), Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS);

    Dongguan 523803, China Dongguan Institute of Neutron Science (DINS), Dongguan 523808, China Sino-French Institute of Nuclear Engineering Technology, SUN YAT-SEN UNIVERSITY, Zhuhai 519082;

    China University of Petroleum (Beijing), Beijing 102249, China;

    China University of Petroleum (Beijing), Beijing 102249, China;

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