CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Nondestructive Imaging of Elements Distribution in Biomedical Samples by X-Ray Fluorescence Computed Tomography
Yang Qun(杨群); Deng Biao(邓彪); Lu Wei-wei; Du Guo-hao(杜国浩); Yan Fu-hua; Xiao Ti-qiao(肖体乔); Xu Hong-jie(徐洪杰)
2011
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
Volume31Issue:10Pages:2753
AbstractX-ray fluorescence computed tomography is a stimulated emission tomography that allows nondestructive reconstruction of the elements distribution in the sample, which is important for biomedical investigations. Owing to the high flux density and easy energy tunability of highly collimated synchrotron X-rays, it is possible to apply X-ray fluorescence CT to biomedical samples. Reported in the present paper, an X-ray fluorescence CT system was established at Shanghai Synchrotron Radiation Facility for the investigations of trace elements distribution inside biomedical samples. By optimizing the experiment setup, the spatial resolution was improved and the data acquisition process was obviously speeded up. The maximum-likelihood expectation-maximization algorithm was introduced for the image reconstruction, which remarkably improved the imaging accuracy of element distributions. The developed system was verified by the test sample and medical sample respectively. The results showed that the distribution of interested elements could be imaged correctly, and the spatial resolution of 150 m was achieved. In conclusion, the developed system could be applied to the research on large-size biomedical samples, concerning imaging accuracy, spatial resolution and data collection time.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000295556300036
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9557
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Yang Qun,Deng Biao,Lu Wei-wei,et al. Nondestructive Imaging of Elements Distribution in Biomedical Samples by X-Ray Fluorescence Computed Tomography[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2011,31(10):2753.
APA Yang Qun.,Deng Biao.,Lu Wei-wei.,Du Guo-hao.,Yan Fu-hua.,...&Xu Hong-jie.(2011).Nondestructive Imaging of Elements Distribution in Biomedical Samples by X-Ray Fluorescence Computed Tomography.SPECTROSCOPY AND SPECTRAL ANALYSIS,31(10),2753.
MLA Yang Qun,et al."Nondestructive Imaging of Elements Distribution in Biomedical Samples by X-Ray Fluorescence Computed Tomography".SPECTROSCOPY AND SPECTRAL ANALYSIS 31.10(2011):2753.
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