| 基于ARM的软件延迟符合法氡同位素 |
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| 引用本文： | 颜拥军,周剑良,杨彬,丘寿康. 基于ARM的软件延迟符合法氡同位素[J]. 原子能科学技术, 2011, 45(12): 1527-1531. DOI: 10.7538/yzk.2011.45.12.1527 |
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| 作者姓名： | 颜拥军 周剑良 杨彬 丘寿康 |
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| 作者单位： | 南华大学 ;核科学技术学院，湖南 ;衡阳421001 |
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| 基金项目： | 国家自然科学基金资助项目，湖南省科技厅资助项目 |
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| 摘 要： | 本文探讨了一种基于嵌入式系统的软件延迟符合分辨测量氡同位素技术，建立基于ARM嵌入式微处理器试验装置，记录核脉冲序列的时序信息，利用氡同位素的短寿命子体钋半衰期不同的特性，用一种软件延迟符合测量法分辨测量了219Rn和220Rn源。实验结果表明，软件延迟符合系统能分辨测量低水平219Rn和220Rn，操作简便，达到了设计目的。
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| 关 键 词： | 氡同位素测量 延迟符合测量 ARM |
Development of Radon Isotopes Discrimination Device by Software Delayed Coincidence Method Based on ARM |
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| YAN Yong-jun,ZHOU Jian-liang,YANG bin,QIU Shou-kang. Development of Radon Isotopes Discrimination Device by Software Delayed Coincidence Method Based on ARM[J]. Atomic Energy Science and Technology, 2011, 45(12): 1527-1531. DOI: 10.7538/yzk.2011.45.12.1527 |
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| Authors: | YAN Yong-jun ZHOU Jian-liang YANG bin QIU Shou-kang |
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| Affiliation: | School of Nuclear Science and Technology, University of South China, Hengyang 421001, China |
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| Abstract: | The software delayed coincidence counting technology was researched based on embedded system.The device based on ARM processor was constructed to record time serials information of nuclear pulse.According to the different half-lifes of Po short-life daughters of radon isotopes,a method of software delayed coincidence counting was used to discriminate radon isotopes.Experiment results of 220Rn and 219Rn standard source measurement show that the software delayed coincidence counting method is practical for di... |
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| Keywords: | measurement of radon isotopes delayed coincidence counting ARM |
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