外文题目: Correcting Intensity Drift in X-ray Grating-based Phase Contrast Imaging
作者: Zhang, P.; Shao, Q.; Hu, R.; Wang, S.; Zan, G.; Wang, S.; Bao, Y.; Wali, F.; Tian, Y.; Liu, G.; Wang, Z.; Gao, K.
刊名: J. Instrum.
年: 2016 卷: 11 文章编号：C03055
会议名称: Symposium on Multi-Scale and Multi-Dimensional Synchrotron Radiation Imaging Techniques and Applications (MMSRI)
英文关键词:
Computerized Tomography (CT) and Computed Radiography (CR); Data processing methods; X-ray radiography and digital radiography (DR); Inspection with x-rays
TALBOT INTERFEROMETRY; COMPUTED-TOMOGRAPHY; SENSITIVITY; RETRIEVAL
英文摘要:
X-ray phase-contrast imaging has become an attractive technique because it can deliver additional information on weakly absorbing materials. Grating-based phase contrast imaging with conventional x-ray source is a breakthrough in x-ray phase contrast imaging because it provides attenuation, refraction and scattering information simultaneously. Therefore, it has potential to be applied in medical and industrial applications. However, in actual experiments, we found that the photon intensity drift of the x-ray source would influence the final images, especially the refraction images. After analyzing the phase-stepping curve, we proposed a correction method to fix the problem due to the effect of intensity drift. The proposed correction method is successfully applied to grating-based phase-contrast imaging setup having un-stable x-ray source. The experimental results show that our method could solve this problem.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1088/1748-0221/11/03/C03055


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