The physics analysis and experiment study of zinc sulphide scintillator for fast neutron radiography

被引:9
作者
Tang, Bin [1 ,2 ]
Wu, Yang [1 ,2 ]
Li, Hang [1 ,2 ]
Sun, Yong [1 ,2 ]
Huo, Heyong [1 ,2 ]
Liu, Bin [1 ,2 ]
Tang, Ke [1 ,2 ]
Yin, Wei [1 ,2 ]
Chao, Chao [1 ,2 ]
机构
[1] CAEP, Inst Nucl Phys & Chem, Miang 621900, Peoples R China
[2] China Acad Engn Phys, Key Lab Neutron Phys, Mianyang, Peoples R China
关键词
Zinc sulphide scintillator; Neutron radiography; Analog calculation; Experiment;
D O I
10.1016/j.nima.2013.07.063
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Fast neutron radiography is a promising application for accelerator based neutron sources. The potential effectiveness of this technique depends on the development of suitable imaging detectors for fast neutrons. Zinc sulphide based scintillators have the largest light output per event in the family of imaging scintillators used so far in fast neutron radiography. This paper investigated different aspects of this scintillator in order to determine the factors which might affect the light output. A mathematical model was established to estimate effectiveness of this scintillator. Zinc sulphide screens were prepared with ZnS particles of different concentrations in polypropylene matrix. A 14 MeV fast neutron source was used in the experiments. The light output was detected using a CCD camera or a him coupled to the scintillator screen. The results showed that the optimum scintillators is around 3 mm in thickness with the weight ratio of 2:1 for ZnS and polypropylene. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:327 / 333
页数:7
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