Performance assessment of CsI(Tl) screens on various substrates for X-ray imaging
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2015 |
| 卷号 | 39期号:7页码:78202 |
| 关键词 | CsI(Tl) scintillation screen substrate imaging performance evaluation |
| 通讯作者 | 秦秀波 |
| 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. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 收录类别 | SCI ; CA |
| WOS记录号 | WOS:000357553700019 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228610]  |
| 专题 | 中国科学院高能物理研究所 |
| 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. |
入库方式： OAI收割
来源：高能物理研究所
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