Hard X-ray dark-field imaging with incoherent sample illumination
Hard X-ray dark-field imaging with incoherent sample illumination
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DOI：
10.1063/1.4861855
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发表时间：
2014-01-13
影响因子：
4
通讯作者：
Olivo, Alessandro
中科院分区：
文献类型：
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作者：
Endrizzi, Marco;Diemoz, Paul C.;Olivo, Alessandro
我们报告了一种非干涉技术，通过使用非相干照明和两个消色差光学元件实现暗场成像。同时检索的吸收和微分相位图像在硬x射线制度也提供。我们表明，三个投影图像足以分离三个信号：吸收，微分相位和散射。该方法是高效的，也在剂量递送到样品，灵活，抗环境振动，和可扩展。它可以很容易地在实验室中实现并转化为商业系统，使其具有广泛的应用范围。(C) 2014 AIP出版有限责任公司
We report on a non-interferometric technique enabling dark-field imaging by using incoherent illumination and two achromatic optical elements. The simultaneous retrieval of absorption and differential phase images in the hard X-ray regime is also provided. We show that three projection images are sufficient to separate three signals: absorption, differential phase, and scattering. The method is highly efficient, also in terms of the dose delivered to the sample, flexible, robust against environmental vibrations, and scalable. It can be easily implemented in laboratories and translated into commercial systems, lending itself to a wide range of applications. (C) 2014 AIP Publishing LLC.