| 工业CT阵列探测器串扰率的蒙卡模拟 |
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| 引用本文： | 林俏露,李公平,王玮,刘星.工业CT阵列探测器串扰率的蒙卡模拟[J].甘肃科学学报,2012,24(4):29-31. |
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| 作者姓名： | 林俏露 李公平 王玮 刘星 |
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| 作者单位： | 兰州大学核科学与技术学院,甘肃兰州,730000 |
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| 基金项目： | 兰州大学自然科学类中央高校基本科研专项 |
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| 摘 要： | 阵列探测器的串扰率对工业CT系统图像重建有重要影响,通过构建W金属隔板的X射线阵列探测器的物理模型,用蒙特卡罗法模拟了阵列探测的串扰率.结果表明:在X射线能量分别为60keV、100keV、140keV时,W金属隔板能有效降低串扰率.结合MTF函数分析,得出射线能量小于140keV的最佳W金属隔板的厚度为0.3mm.
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| 关 键 词： | CsI(Tl)阵列探测器 蒙卡模拟 串扰率 金属隔板 |
Monte Carlo Simulation for the Crosstalk Rate of Industrial CT Array Detector |
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| LIN Qiao-lu
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LI Gong-ping
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WANG Wei
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LIU Xing.Monte Carlo Simulation for the Crosstalk Rate of Industrial CT Array Detector[J].Journal of Gansu Sciences,2012,24(4):29-31. |
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| Authors: | LIN Qiao-lu LI Gong-ping WANG Wei LIU Xing |
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| Institution: | (School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China) |
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| Abstract: | The crosstalk rate of the array detector had a significant effect on the of imaging reconstruction industrial CT system.The physical model of X-ray array detector using tungsten metal clapboard has been constructed.The array survey crosstalk rate was simulated by the Monte Carlo Method.Simulation results indicated that when the X-ray energy was 60 keV,100 keV and 140 keV respectively,the tungsten metal clapboard could reduce the crosstalk rate effectively.Combined with MTF function,the optimal thickness of W metal clapboard was 0.3 mm when X-ray energy was less than 140 keV. |
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| Keywords: | CsI（Tl） array detector Monte Carlo simulation crosstalk rate metal clapboard |
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