Source apportionment of aerosol particles using polycapillary slightly focusing X-ray lens

被引：7
|
作者：
Sun, Tianxi [1 ,2 ,3 ]
Liu, Zhiguo [1 ,2 ,3 ]
Zhu, Guanghua [1 ,2 ,3 ]
Liu, Hui [1 ,2 ,3 ]
Ma, Yongzhong [5 ]
Xu, Qing [4 ]
Li, Yude [1 ,2 ,3 ]
Wang, Guangpu [1 ,2 ,3 ]
Luo, Ping [1 ,2 ,3 ]
Pan, Qiuli [1 ,2 ,3 ]
Ding, Xunliang [1 ,2 ,3 ]
机构：
[1] Beijing Normal Univ, Key Lab Beam Technol & Mat Modificat, Minist Educ, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Inst Low Energy Nucl Phys, Beijing 100875, Peoples R China
[3] Beijing Radiat Ctr, Beijing 100875, Peoples R China
[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
[5] Ctr Dis Control & Prevent Beijing, Beijing 100013, Peoples R China
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 604卷 / 03期
基金：
高等学校博士学科点专项科研基金;
关键词：
Micro-XRF; Capillary X-ray optics; Single aerosol particle analysis; Source apportionment; FLUORESCENCE; MICROSCOPE;
D O I：
10.1016/j.nima.2009.01.009
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A micro-X-ray fluorescence (Micro-XRF) spectrometer based on a polycapillary Slightly focusing X-ray lens (PSFXRL) and laboratory X-ray source was designed to carry out the Source apportionment of aerosol particles. In the distribution curve of the X-ray intensity in the focal spot of PSFXRL, there was a plateau with a diameter of about 65 mu m. The uniformity of this plateau was about 3%. This was helpful in measuring the XRF spectrum of a single aerosol particle in which the element distributions are not uniform. The minimum detection limit (MDL) of this Micro-XRF spectrometer was 15 ppm for the Fe-K-alpha. The origins of the aerosol particles at the exit of a subway station and a construction site were apportioned. This Micro-XRF spectrometer has potential applications in analysis of single aerosol particles. (C) 2009 Published by Elsevier B.V.
引用
收藏
页码：755 / 759
页数：5
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