We report the initial demonstrations of the use of single crystals in indirect x-ray imaging for x-ray phase contrast imaging at the Washington University in St. Louis Computational Bioimaging Laboratory (CBL). Based on single Gaussian peak fits to the x-ray images, we observed a four times smaller system point spread function (21 {\mu}m (FWHM)) with the 25-mm diameter single crystals than the reference polycrystalline phosphor's 80-{\mu}m value. Potential fiber-optic plate depth-of-focus aspects and 33-{\mu}m diameter carbon fiber imaging are also addressed.
翻译:我们报告在圣路易斯州华盛顿大学生物成像实验室(CBL),在X射线级对比成像的间接X射线成像中使用单一晶体的初步示范。 根据单一高山峰与X射线成像相匹配,我们观察到的系统点扩散功能(21 mmu}m (FWHM))是25毫米直径单晶体的四倍,其直径比参考聚晶体磷的80 mmu}值还要小,还涉及了潜在光纤板面深度和33毫米直径碳纤维成像。