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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research >Size-resolved source apportionment of aerosol particles using polycapillary X-ray lens with a plateau in its focal spot
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Size-resolved source apportionment of aerosol particles using polycapillary X-ray lens with a plateau in its focal spot

机译：使用多毛细管X射线透镜对气溶胶颗粒进行尺寸分辨的源分配

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摘要

A laboratory micro X-ray fluorescence spectrometer based on a special polycapillary X-ray lens (PXRL) was used to carry out the source apportionment of aerosol particles. In the curve of the distribution of the X-ray intensity in the focal spot of the special PXRL, there was a plateau with a diameter of 21.3 urn in which the distribution of the X-ray intensity was homogeneous. The gain in flux density in the plateau of the PXRL is 1490. The uniformity of this plateau was 2.9%. This was helpful for the quantitative X-ray fluorescence analysis of a single aerosol particle with smaller size than that of the plateau of the PXRL. The fingerprint database of aerosol particles with given sizes from various air pollution sources was established with the single particle analysis method. The size-resolved source apportionment of aerosol particles in haze in Beijing city was performed with this fingerprint database.
机译：基于特殊的多毛细管X射线透镜（PXRL）的实验室微型X射线荧光光谱仪用于进行气溶胶颗粒的源分配。在特殊PXRL的焦点处的X射线强度的分布曲线中，存在直径为21.3μm的平台，其中X射线强度的分布是均匀的。 PXRL平台的通量密度增益为1490。该平台的均匀度为2.9％。这有助于对单个粒径小于PXRL高原的气溶胶颗粒进行X射线荧光定量分析。利用单颗粒分析方法建立了来自各种空气污染源的给定尺寸的气溶胶颗粒的指纹数据库。使用该指纹数据库进行了北京市雾霾中气溶胶颗粒的尺寸分辨源分配。

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  • 来源
    《Nuclear Instruments & Methods in Physics Research》 |2010年第24期|p.3554-3560|共7页
  • 作者

    Tianxi Sun; Zhiguo Liu; Yude Li; Guangpu Wang; Guanghua Zhu; Qing Xu; Yongzhong Ma; Xiaoyan Lin; Hui Liu; Ping Luo; Qiuli Pan; Yuepeng Teng; XunliangDing;

  • 作者单位

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China;

    Center for Disease Control and Prevention of Beijing, Beijing 100013, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

    The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China,The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China,Beijing Radiation Center, Beijing 100875, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    polycapillary x-ray lens; micro x-ray fluorescence; quantitative analysis of single aerosol; particle;

    机译：多毛细管X射线镜头;显微X射线荧光;单一气雾剂的定量分析;粒子;

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