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Proceedings Paper

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

Due to the shortage and the rapidly increasing price of the 3He gas, seeking new types of position-sensitive neutron detectors is urgent. In order to fulfill the requirements of Chinese neutron spectrometers for neutron detectors, the research on neutron detector based on 6LiF/ZnS (Ag) scintillator and wavelength-shifting fiber (WLSF) structure neutron detectors was developed. It has the advantages of high neutron detection efficiency, good position resolution and the ability to splicing large areas. This paper proposed a tubular neutron detector structure. It consists of two layers of rolled 6LiF/ZnS(Ag) scintillators sandwich with two wavelength-shifting fibers, and two SiPMs (Silicon photomultipliers) 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 tested by the neutron beam. The preliminary test results showed that the detector can work well.

Paper Details

Date Published: 10 May 2019
PDF: 9 pages
Proc. SPIE 11068, Second Symposium on Novel Technology of X-Ray Imaging, 110682C (10 May 2019); doi: 10.1117/12.2524696
Show Author Affiliations
Yun Liu, China Univ. of Petroleum (China)
Dongguan Institute of Neutron Science (China)
Bin Tang, Institute of High Energy Physics (China)
Dongguan Institute of Neutron Science (China)
Chong Wu, China Univ. of Petroleum (China)
Chang Huang, Dongguan Institute of Neutron Science (China)
Lanzhou Univ.
Zhi-jia Sun, Institute of High Energy Physics (China)
Dongguan Institute of Neutron Science (China)
Sun Yat-Sen Univ. (China)
Yan-chao Zhang, China Univ. of Petroleum (China)
Chun-dan Lin, China Univ. of Petroleum (China)


Published in SPIE Proceedings Vol. 11068:
Second Symposium on Novel Technology of X-Ray Imaging
Yangchao Tian; Tiqiao Xiao; Peng Liu, Editor(s)

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