光学学报, 2010, 30 (4): 1106, 网络出版: 2010-04-20
基于玻恩近似相位恢复的X射线显微CT实验研究
Experimental Investigation on X-Ray Micro-Computed Tomography by Phase Retrieval with Born Approximations
摘要
结合同轴X射线相位衬度成像(XPCI)中的Born近似相位恢复法和CT技术,实现了基于单一物像距同轴X射线相位衬度CT(IL-XPCT)投影图像的相位恢复切片重构方法。利用上海光源X射线成像及生物医学应用光束线站的单色光开展模型和生物样品(蝗虫)IL-XPCT研究。对比显示,进行相位恢复后,能获得更好的IL-XPCT重构切片和三维重建图像。实验结果表明,本方法具有用于生物活体样品三维无损成像研究的潜力。
Abstract
Phase retrieval of in line X-ray phase contrast computed tomography (IL-XPCT) with Born approximations is achieved by using images recorded at single sample-to-detector distance. Experiments are carried out at X-ray imaging and biomedical application beamline,by taking a phantom and a locust as the samples. After phase retrieval,much better IL-XPCT slices and three-dimensional rendered images are obtained. The results show that the potential application of the proposed method to three-dimensional non-destructive imaging of biological samples.
陈荣昌, 谢红兰, 杜国浩, 邓彪, 朱佩平, 佟亚军, 王玉丹, 肖体乔. 基于玻恩近似相位恢复的X射线显微CT实验研究[J]. 光学学报, 2010, 30(4): 1106. Chen Rongchang, Xie Honglan, Du Guohao, Deng Biao, Zhu Peiping, Tong Yajun, Wang Yudan, Xiao Tiqiao. Experimental Investigation on X-Ray Micro-Computed Tomography by Phase Retrieval with Born Approximations[J]. Acta Optica Sinica, 2010, 30(4): 1106.