| 双能X射线检测技术的能谱滤波参数优化设计 |
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| 引用本文： | 项安,陈瑞焘. 双能X射线检测技术的能谱滤波参数优化设计[J]. 同济大学学报(自然科学版), 2014, 42(9): 1432-1436 |
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| 作者姓名： | 项安 陈瑞焘 |
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| 作者单位： | 同济大学电气工程系,同济大学电气工程系 |
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| 摘 要： | 提出了使用金属片过滤高能X射线的方法,并采用蒙特卡罗方法模拟双能X射线检测系统,结合建立的代价函数确定最佳滤波金属材料与金属片厚度.利用X射线安检机进行测试,结果表明使用本文提出的金属滤波方法及优化的滤波参数显著提高了X射线双能检测系统的性能,证明了该方法的有效性.
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| 关 键 词： | 双能X射线 金属滤波 蒙特卡罗方法 能谱重叠 代价函数 |
| 收稿时间： | 2014-01-15 |
| 修稿时间： | 2014-05-12 |
Optimization Design of Filter Parameters for Energy Spectrums Used in Dual energy X ray Inspection |
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| XIANG An and CHEN Ruitao. Optimization Design of Filter Parameters for Energy Spectrums Used in Dual energy X ray Inspection[J]. Journal of Tongji University(Natural Science), 2014, 42(9): 1432-1436 |
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| Authors: | XIANG An and CHEN Ruitao |
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| Affiliation: | College of Electronics and Information, Tongji University, Shanghai 201804, China;College of Electronics and Information, Tongji University, Shanghai 201804, China |
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| Abstract: | This paper puts forward a metal filter method to solve this problem. In order to eliminate the overlap as well as the unbalanced total energy between two energy spectrums as much as possible, this paper develops a dual-energy inspection system model based on the Monte Carlo method and creates a cost function to choose the optimum metal material and thickness. A practical X-ray inspection machine is used to test this method. The result indicates that this metal filter method and concerned filter parameters obviously contribute to the performance improvement of dual-energy inspection system, which attests to the effectiveness of this method |
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| Keywords: | Monte Carlo overlap of energy spectrums unbalance of total energy cost function metal |
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