Ratio-contrast imaging of dual-energy absorption for element mapping with a scanning transmission X-ray microscope
文献类型：期刊论文
| 作者 | Zhang, X. Z.1; Xu, Z. J.1; Tai, R. Z.1; Zhen, X. J.1; Wang, Y.1; Guo, Z.1; Yan, R.1; Chang, R.1; Wang, B.2,3; Li, M.2,3 |
| 刊名 | JOURNAL OF SYNCHROTRON RADIATION
 |
| 出版日期 | 2010-11-01 |
| 卷号 | 17页码:804-809 |
| 关键词 | X-ray Absorption Edge X-ray Microscopy Element Microanalysis |
| ISSN号 | 0909-0495 |
| DOI | 10.1107/S0909049510031250 |
| 英文摘要 | The detection of chemical mapping with a spatial resolution of 30 nm has been achieved with a scanning transmission X-ray microscope at the Shanghai Synchrotron Radiation Facility. For each specimen, two absorption images were scanned separately with energies E (1) and E (2): E (1) was focused on the absorption edge of the chosen element and E (2) was focused below the edge. A K-edge division method is proposed and applied to obtain the element mapping. Compared with the frequently used K-edge subtraction method, this ratio-contrast method is shown to be more accurate and sensitive in identifying the elements of interest, where the definition of the contrast threshold is simple and clear in physics. Several examples are presented to illustrate the effectiveness of the method. |
| 语种 | 英语 |
| WOS记录号 | WOS:000283599600014 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/70387]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tai, R. Z. |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, CAS Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Analyt Tech, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, X. Z.,Xu, Z. J.,Tai, R. Z.,et al. Ratio-contrast imaging of dual-energy absorption for element mapping with a scanning transmission X-ray microscope[J]. JOURNAL OF SYNCHROTRON RADIATION,2010,17:804-809. |
| APA | Zhang, X. Z..,Xu, Z. J..,Tai, R. Z..,Zhen, X. J..,Wang, Y..,...&Gao, F..(2010).Ratio-contrast imaging of dual-energy absorption for element mapping with a scanning transmission X-ray microscope.JOURNAL OF SYNCHROTRON RADIATION,17,804-809. |
| MLA | Zhang, X. Z.,et al."Ratio-contrast imaging of dual-energy absorption for element mapping with a scanning transmission X-ray microscope".JOURNAL OF SYNCHROTRON RADIATION 17(2010):804-809. |
入库方式： OAI收割
来源：化学研究所
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