| 基于Micro-PIXE能谱的大气单颗粒物污染源模式识别研究 |
| |
| 引用本文： | 万天敏,李晓林,岳伟生,李燕,张桂林.基于Micro-PIXE能谱的大气单颗粒物污染源模式识别研究[J].核技术,2005,28(12):904-908. |
| |
| 作者姓名： | 万天敏 李晓林 岳伟生 李燕 张桂林 |
| |
| 作者单位： | 中国科学院上海应用物理研究所,上海,201800;中国科学院研究生院,北京,100049;中国科学院上海应用物理研究所,上海,201800 |
| |
| 基金项目： | 中国科学院创新工程项目（KJCX2-SW-No.1）和国家自然科学基金项目（10375084）共同资助 |
| |
| 摘 要： | 来自不同排放源的大气气溶胶，其化学组成特别是微量元素组成具有各自的特征，在Micro-PIXE上呈现不同的特征峰。因此单个气溶胶颗粒物的Micro-PIXE能谱特征可作为其指纹，查找污染源。本文提出了适应于Micro-PIXE谱的模式识别算法，并对这种以Micro-PIXE能谱特征溯源的方法进行了可靠性检验。结果表明以此种方法进行源解析具有较高的可信度。相应的模式识别算法具有准确，快速的特点。
|
| 关 键 词： | 大气颗粒物 能谱特征 PIXE 模式识别 |
| 收稿时间： | 09 9 2004 12:00AM |
| 修稿时间： | 2004-09-092004-11-12 |
Study of pattern recognition method for source identification of aerosol particles by micro-PIXE spectrum |
| |
| WAN Tianmin,LI Xiaolin,YUE Weisheng,LI Yan,ZHANG Guilin.Study of pattern recognition method for source identification of aerosol particles by micro-PIXE spectrum[J].Nuclear Techniques,2005,28(12):904-908. |
| |
| Authors: | WAN Tianmin LI Xiaolin YUE Weisheng LI Yan ZHANG Guilin |
| |
| Affiliation: | 1 Shanghai Institute of Applied Physics ,the Chinese Academy of Sciences, Shanghai 201800, China ; 2 Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
| |
| Abstract: | The micro-PIXE spectra of aerosol particles from different emitter sources have different characteristic peaks, due to different chemical compositions of these particles. Thus, the micro-PIXE spectra can be considered as fingerprints of the aerosol particles. In order to identify the sources of aerosol particles, a pattern recognition method was developed and the method was examined and the result shows that the method is reliable and efficient. |
| |
| Keywords: | Aerosol particle Spectrum feature PIXE Pattern recognition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
