| 能量色散型X荧光分析仪光管、样品、探测器距离的蒙特卡罗优化 |
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| 引用本文： | 刘艳芳,赖万昌,谢希成,张江云,周良平.能量色散型X荧光分析仪光管、样品、探测器距离的蒙特卡罗优化[J].核电子学与探测技术,2011,31(9):1038-1041,1061. |
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| 作者姓名： | 刘艳芳 赖万昌 谢希成 张江云 周良平 |
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| 作者单位： | 1. 成都理工大学核技术与自动化工程学院,四川成都,610059
2. 四川大学原子核科学技术研究所,四川成都,610064 |
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| 基金项目： | 国家863计划课题(2006AA09Z219) |
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| 摘 要： | 在EDXRF分析中,X射线荧光计数率与待测元素有密切关系.由理论可知,在能量色散型X荧光分析仪设计时,优化X光管、样品和探测器的相对几何位置对荧光计数率的改善有很大的帮助.在前期模拟的最佳角度基础上,采用MCNP程序,建立几何模型,模拟了X光管、样品和探测器之间不同距离时的X荧光计数率,得到了这三者之间的最佳距离.
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| 关 键 词： | EDXRF 计数率 最佳距离 |
Optimization of the Distance Among the Detector,Tube and Samples in the EDXRF Analyzer by the Monte Carlo Method |
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| LIU Yan-fang,LAI Wan-chang,XIE Xi-cheng,ZHANG Jiang-yun,ZHOU Liang-ping.Optimization of the Distance Among the Detector,Tube and Samples in the EDXRF Analyzer by the Monte Carlo Method[J].Nuclear Electronics & Detection Technology,2011,31(9):1038-1041,1061. |
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| Authors: | LIU Yan-fang LAI Wan-chang XIE Xi-cheng ZHANG Jiang-yun ZHOU Liang-ping |
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| Affiliation: | LIU Yan-fang1,LAI Wan-chang1,XIE Xi-cheng1,ZHANG Jiang-yun2,ZHOU Liang-ping1(1.College of Nuclear Technology and Automation Engineering,Chengdu University of Technology,Cheng du,610059,China,2.Institute of Nuclear Science and Technology,Sichuan University,Chengdu,610064,China) |
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| Abstract: | X-ray fluorescence count rate have closed relationship with analyze when EDXRF analysis.We know from the theory,the optimization of X-ray tube,sample and detector geometry on the relative improvement in fluorescent count rate which is very helpful when the energy dispersive X-ray fluorescence analyzer design.Pre-simulation based on the best angle,we use of MCNP program to obtain the X fluorescence count rate from building the geometry model to simulate among the X-ray tube,sample and detector at different d... |
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| Keywords: | EDXRF count rate best distance |
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