Performance assessment of CsI(Tl) screens on various substrates for X-ray imaging
Feng ZD(冯召东); Zhang HK(张红凯); Zhao BZ(赵博震); Qin XB(秦秀波); Wei CF(魏存峰); 刘宇(核); Wei L(魏龙); Feng, ZD; Jiang, P; Zhang, HK; Zhao, BZ; Qin, XB; Wei, CF; Liu, Y; Wei, L
刊名CHINESE PHYSICS C
2015
卷号39期号:7页码:78202
关键词CsI(Tl) scintillation screen substrate imaging performance evaluation
学科分类Physics
DOI10.1088/1674-1137/39/7/078202
通讯作者秦秀波
文章类型Article
英文摘要Thallium-doped cesium iodide (CsI(Tl)) screens are widely used in X-ray imaging devices because of the columnar structure of the CsI(Tl) layer, but few reports focus on the optical role of the substrate in the screen system. In this paper, four substrates including fused silica (SiO2), silver-film coated SiO2, graphite (C) and fiber optic plate (FOP) are used to fabricate CsI(Tl) screens by thermal evaporation. Their imaging performance is evaluated by relative light output (RLO), modulation transfer function (MTF), normalized noise power spectrum (NNPS) and noise equivalent quanta (NEQ). The results reveal that although CsI(Tl) film on graphite plate yields images with the lowest light output, it presents relatively higher spatial resolution and better signal-to-noise characteristics. However, films on SiO2 plate obtain low MTF but high NNPS curves, whether they are coated with silver film or not. Furthermore, scintillation screens on FOP have bright images with low NNPS and high NEQ, but have the lowest MTF. By controlling the substrate optical features, CsI(Tl) films can be tailored to suit a given application.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI ; CA
WOS记录号WOS:000357553700019
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228610
专题中国科学院高能物理研究所_核技术应用研究中心_期刊论文
推荐引用方式
GB/T 7714
Feng ZD,Zhang HK,Zhao BZ,et al. Performance assessment of CsI(Tl) screens on various substrates for X-ray imaging[J]. CHINESE PHYSICS C,2015,39(7):78202.
APA 冯召东.,张红凯.,赵博震.,秦秀波.,魏存峰.,...&Wei, L.(2015).Performance assessment of CsI(Tl) screens on various substrates for X-ray imaging.CHINESE PHYSICS C,39(7),78202.
MLA 冯召东,et al."Performance assessment of CsI(Tl) screens on various substrates for X-ray imaging".CHINESE PHYSICS C 39.7(2015):78202.
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