FSRC "Crystallography and Photonics" RAS, Leninskiy Prospekt 59, 119333 Moscow, Russia.
Smart Engines Service LLC, 60-Letiya Oktyabrya Avenue, 9, 117312 Moscow, Russia.
Sensors (Basel). 2020 Dec 6;20(23):6970. doi: 10.3390/s20236970.
This article demonstrates how a combination of well-known tools-a standard 2D detector (CCD (charge-coupled device) camera) and a crystal analyzer-can improve the multimodality of X-ray imaging and tomographic sensing. The use of a crystal analyzer allowed two characteristic lines of the molybdenum anode-Kα and Kβ-to be separated from the polychromatic radiation of the conventional X-ray tube. Thus, as a result of one measurement, three radiographic projections (images) were simultaneously recorded. The projection images at different wavelengths were separated in space and registered independently for further processing, which is of interest for the spectral tomography method. A projective transformation to compensate for the geometric distortions that occur during asymmetric diffraction was used. The first experimental results presented here appear promising.
本文展示了如何将一些知名工具（标准的二维探测器（CCD（电荷耦合器件）相机）和晶体分析仪）结合起来，以提高 X 射线成像和层析传感的多模态性能。使用晶体分析仪，可以将钼阳极的两条特征线（Kα 和 Kβ）与常规 X 射线管的多色辐射分离。因此，通过一次测量，可以同时记录三张射线照相投影（图像）。在不同波长的投影图像在空间中被分离，并独立记录以供进一步处理，这对光谱层析成像方法很有意义。使用了投影变换来补偿在非对称衍射过程中产生的几何变形。本文首次给出的实验结果很有前景。
