New lensless diffractive X-ray technic for micro-scale imaging of biological tissue is based on quantitative information on the phase. This method yields improved contrast compared to purely absorption-based tomography but involves a phase retrieval problem since of physical limitation of detectors. An analytic method is proposed in the paper for reconstruction of the ray projection of complex refraction index from intensity distribution of one hologram.

中文翻译：

---

X射线相位对比成像的相位提取解析方法

用于生物组织微观成像的新的无透镜衍射X射线技术基于相位上的定量信息。与纯粹基于吸收的层析成像相比，该方法产生了改进的对比度，但是由于探测器的物理限制，因此存在相位恢复问题。本文提出了一种解析方法，用于从一个全息图的强度分布重建复折射率的光线投影。