| 平板式探测器和常规X射线数字化成像未来 |
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| 引用本文： | 郭长运. 平板式探测器和常规X射线数字化成像未来[J]. 医疗设备信息, 2002, 17(2): 1-8 |
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| 作者姓名： | 郭长运 |
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| 作者单位： | 中国康复研究中心 北京100077 |
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| 摘 要： | 本文综合论述、分析和讨论了平板检测器（FPD）主要组成部分和整体检测器工作机理，优良特性和现有水平，将用于数字化X射线摄影（DR）的FPD和传统射线摄影用胶片-增感屏系统（简称屏-片系统）进行了比较，提及了FPDDR系统代表着数字摄影系统优点且较其它系统具有优势，将用于数字化X射线透视（DF）的FPD和传统射线透视用图像增强器-摄像器件系统（简称IIT系统）进行了对比。也简述了FPDDR和DF系统某些产品的应用，文中分析认为，未来常规X射线成像系统是和FPD技术联系在一起的。
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| 关 键 词： | 平板检测器 常规X射线数字化成像 非晶硅（a－Si）FPD 非晶硒（a－Se）FPD CsI：Tl a－Se层 PIN光电二极管 薄膜晶体管（TFT） |
| 文章编号： | 1007-7510(2002)02-0001-08 |
| 修稿时间： | 2002-02-05 |
Flat Panel Detector and the Future of the Conventional X- ray Digital Imaging |
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| GUO Chang-yun. Flat Panel Detector and the Future of the Conventional X- ray Digital Imaging[J]. Information of Medical Equipment, 2002, 17(2): 1-8 |
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| Authors: | GUO Chang-yun |
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| Abstract: | The working mechanism,distingushing characteristics and the current state of main parts and the hole body of the flat panel detector(FPD)are comprehensively expounded,analyzed and discussed in this paper.A comparison between FPD in digital X-ray radiography(DR)and film-screen in tranditional X-ray radiograph is made,so is the comparison between FPD in digital X-ray fluoroscopy(DF)and the image intensifier-camera system (IIT system for short)in tranditional X-ray fluoroscopy.The fact that the FPD DR represents the advantages of DR systems and is superior to other DR is mentioned.Also some FPD DR and DF products and their application are briefly described.From the analyzation the paper believes that the future of the conventional X-ray imaging system is closely related to the FPD technology. |
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| Keywords: | amorphous silicon(a-Si)FPD amorphous selenium(a-Se)FPD CsI:T1 a-Se layer PIN photodiode thin-film-transistor(TFT) data readout amplifier DR DF X-ray sensitivity electronic noise modulation transfer function(MTF) detective quantum efficiency(DQE |
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