硬X射线泽尼克型相位对比成像的双块晶体系统
Hard X-Ray Zernike-Type Phase-Contrast Imaging with a Two-Block Crystal System
AI总结：
本文提出了一种基于双块晶体系统的硬X射线相位对比成像方法，通过引入π/2相位移器实现紧凑型成像，无需传统聚焦光学。
摘要：
本文提出了一种新型的泽尼克型硬X射线相位对比成像方案。该方案依赖于在两个等厚平行晶体板构成的双块晶体系统中进行X射线动力学衍射。在晶体系统中块间间隙处放置一个提供π/2相位移的相位移器。该方法采用扫描几何方式工作。所提出的成像装置紧凑，不需要常规聚焦光学系统。进行了相位对比图像形成过程的数值模拟。
英文摘要：
A novel scheme for Zernike-type hard X-ray phase-contrast imaging is proposed. The scheme relies on X-ray dynamical diffraction in a two-block crystal system with parallel crystal plates of equal thickness. A phase shifter providing a $π/2$ phase shift is placed in the inter-block gap of the crystal system. The method operates in a scanning geometry. The proposed imaging setup is compact and does not require conventional focusing optics. Numerical simulations of phase-contrast image formation are performed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
