| 便携式数字X射线光锥耦合CCD成像系统研究 |
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| 引用本文： | 王志社,陈树越,曾光宇,王晓霞.便携式数字X射线光锥耦合CCD成像系统研究[J].传感器与微系统,2007,26(9):26-28. |
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| 作者姓名： | 王志社 陈树越 曾光宇 王晓霞 |
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| 作者单位： | 中北大学,仪器科学与动态测试教育部重点实验室,山西,太原,030051 |
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| 摘 要： | 与光学透镜和CCD的耦合方法相比,光锥和CCD的耦合器件具有体积小、重量轻、耦合效率高的特点。分析了光锥和CCD的耦合效率对整个成像系统信噪比的影响,阐述了光锥和像增强器、CCD的耦合方法。实验测试结果表明:成像系统的空间分辨力达到4lpixel/mm;对人手的X射线透视结果表明:手部骨骼轮廓清晰,能够对其病变做出准确诊断。
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| 关 键 词： | 光锥 X射线像增强器 电荷耦合器件 空间分辨力 |
| 文章编号： | 1000-9787（2007）09-0026-03 |
| 修稿时间： | 2007-01-18 |
Research on portable digital X-ray optical fiber taper coupling to CCD imaging system |
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| WANG Zhi-she,CHEN Shu-yue,ZENG Guang-yu,WANG Xiao-xia.Research on portable digital X-ray optical fiber taper coupling to CCD imaging system[J].Transducer and Microsystem Technology,2007,26(9):26-28. |
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| Authors: | WANG Zhi-she CHEN Shu-yue ZENG Guang-yu WANG Xiao-xia |
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| Affiliation: | Key Labortory of Instrumentation Science and Dynamic Measurement, Ministry of Educationm North University of China, Taiyuan 030051, China |
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| Abstract: | Compared to a lens-coupled CCD camera system,the CCD camera coupled with optical fiber taper has less cubage,lighter weight and higher collection efficiency. The influence of coupling efficiency of optical fiber taper with CCD on signal-to-noise ratio of image system is analysed. In addition , the coupling method of optical fiber taper coupling with generation image intensifier and CCD is expatiated. Inspection result shows that the resolution of imaging system is 41 pixel/mm and the expeiment for radiographic image of people hand bones indicates that imaging system can be used to medical diagnoses. |
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| Keywords: | optical fiber taper X-ray generation image intensifier CCD spatial resolution |
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