Zhao Wenyang, Sakurai Kenji
University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-0006, Japan.
J Synchrotron Radiat. 2019 Jan 1;26(Pt 1):230-233. doi: 10.1107/S1600577518014273.
For many years, X-ray movies have been considered a promising tool for exploring and providing insights into chemical reactions. A simultaneous multi-element X-ray movie can further clarify the behavior difference of various elements and help investigate their interactions. The present short communication illustrates how to conduct multi-element X-ray movie imaging in a synchrotron facility solely by placing a micro-pinhole in front of a visible-light complementary metal-oxide semiconductor (CMOS) camera. It has been found that the CMOS camera can resolve X-ray fluorescence spectra when it is specially operated. In this work, a spatial resolution of ∼15 µm was achieved. In the X-ray movie, a movie frame acquisition time of 2 min and a spatial resolution of ∼50 µm were simultaneously achieved. It is clear that the CMOS camera can be a cost-efficient option for many researchers who wish to establish their own setup for visualizing chemical diffusion in various reactions.
多年来，X射线成像一直被认为是探索化学反应并深入了解其过程的一种很有前景的工具。同步多元素X射线成像能够进一步阐明各种元素的行为差异，并有助于研究它们之间的相互作用。本简短通讯阐述了如何仅通过在可见光互补金属氧化物半导体（CMOS）相机前放置一个微针孔，在同步加速器装置中进行多元素X射线成像。研究发现，CMOS相机在经过特殊操作后能够分辨X射线荧光光谱。在这项工作中，实现了约15微米的空间分辨率。在X射线成像中，同时实现了2分钟的图像帧采集时间和约50微米的空间分辨率。显然，对于许多希望建立自己的装置以可视化各种反应中化学扩散过程的研究人员来说，CMOS相机是一种经济高效的选择。
