期刊
X-RAY SPECTROMETRY
卷 49, 期 2, 页码 267-273出版社
WILEY
DOI: 10.1002/xrs.3106
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类别
资金
- National Natural Science Foundation of China [11675019, 11875087]
Confocal three-dimensional micro-X-ray fluorescence (3D-mu XRF) spectroscopy based on laboratory X-ray tube was employed to unravel the three-dimensional (3D) distribution of metal element (Fe) inner the paper. According the distribution of the Fe in the paper, the information covered in the printed paper could be retrieved. Before the experiment, the performance of the confocal 3D-mu XRF setup was described. The two-dimensional (2D) mapping of printed character covered by the opaque tape and contaminated by the black ink was scanned by confocal 3D-mu XRF setup. Furthermore, 2D and 3D mapping of a printed number covered by the paper with printed character was performed by micro-X-ray fluorescence and confocal 3D-mu XRF setup, respectively. The scanning results indicated that confocal 3D-mu XRF was more suitable for retrieving the information covered in the paper. Furthermore, the confocal 3D-mu XRF setup has potential application on the identification of unseen letter or painting that was covered by others, such as ink.
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