CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Soft X-ray spectromicroscopy dual-energy contrast image for element spatial distribution analysis
Zhang Xiang-Zhi(张祥志); Xu Zi-Jian(许子健); Zhen Xiang-Jun; Wang Yong(王勇); Guo Zhi(郭智); Yan Rui(严睿); Chang Rui(常睿); Zhou Ran-Ran; Tai Ren-Zhong(邰仁忠)
2010
Source PublicationACTA PHYSICA SINICA
ISSN1000-3290
Volume59Issue:7Pages:4535
AbstractThe detection of chemical speciation with spatial resolution of 30 nm has been implemented at BL08U soft X-ray spectromicroscopy endstation of Shanghai Synchrotron Radiation Facility. For each specimen, we scan two absorption images separately at two energies E(1) and E(2) near the absorption edge of the element with E(1) > E(2). After calculating the signal ratio of each pair of the corresponding pixels' optical density in the two absorption images, we can obtain the map of the spatial distribution of that element. Compared with the conventional analysis method of K-edge subtraction (KES), our ratio analysis method is more sensitive and accurate in identifying the spatial distribution of the interested elements, and the definition of the contrast threshold determining whether a pixel contains the interested element, is simpler and clearer in physics. Through the analysis and calculation of the spatial distributions of the oxygen element on a pre-oxidized polyacrylonitrile fiber cross-section, we can verify the effectiveness of the ratio analysis method compared to the traditional KES method. This ratio method provides a new analysis tool for fast mapping the distribution of trace elements.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000280168700021
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13055
Collection中科院上海应用物理研究所2004-2010年
Recommended Citation
GB/T 7714
Zhang Xiang-Zhi,Xu Zi-Jian,Zhen Xiang-Jun,et al. Soft X-ray spectromicroscopy dual-energy contrast image for element spatial distribution analysis[J]. ACTA PHYSICA SINICA,2010,59(7):4535.
APA Zhang Xiang-Zhi.,Xu Zi-Jian.,Zhen Xiang-Jun.,Wang Yong.,Guo Zhi.,...&Tai Ren-Zhong.(2010).Soft X-ray spectromicroscopy dual-energy contrast image for element spatial distribution analysis.ACTA PHYSICA SINICA,59(7),4535.
MLA Zhang Xiang-Zhi,et al."Soft X-ray spectromicroscopy dual-energy contrast image for element spatial distribution analysis".ACTA PHYSICA SINICA 59.7(2010):4535.
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