传统X-ray成像到此为止,它所成的像实际上是垂直于射线方向的所有特征的重叠,不同深度的信息被叠加在同一张图片上,这有时很难分辨。X-ray tomography,或称micro-CT,的做法更加高明:它让X-ray源绕着试样旋转,拍一系列图片,再通过数学手段对这些图片重组,最终可以得到3D的模型。注意这里的旋转是相对的,在材料表征...
X-Ray micro-TomographyMacdowell, Alastair
X-ray microtomography (microCT) using phase contrast for the investigation of organic matter. We show that microtomography (μCT) using synchrotron radiation (SR) can be extended to include X-ray phase contrast, which is two to three orders of magni... F Beckmann,U Bonse,F Busch,... - ...
X-ray tomography devices consist primarily of an X-ray source and a detector as schematically shown in Fig. 1. In early and some large devices, the X-ray source, which produces an X-ray cone beam (Lin & Miller, 2001), rotates simultaneously with the detector in order to obtain multiple...
Measurements of fracture apertures were done with high-resolution Micro-Computed Tomography (MCT) with a voxel resolution of about 0.05mm in three dimensions... ZT Karpyn,A Alajmi,F Radaelli,... - 《Engineering Geology》 被引量: 50发表: 2009年 Experimental Investigation of Crack Extension Patter...
ZEISS has now extended its range of lab X-ray imaging instruments with an advanced micro-computed tomography (microCT) system called ZEISS Xradia Context microCT. This instrument will expand the offering with high throughput imaging, and full context, large field of view, whilst ZEISS Xradia Ultr...
采用微纳米X-Ray断面成像技术,通过对含有CaCl2生物淀粉膨化结构材料三维成像规律的研究,确定了胞元体结构形态,并分析了断层胞元分布规律。 X-Ray tomography is used in order to obtain 3D image in the process of studyin...
Propagation-based phase-contrast computed tomography (PPCT) utilizes highly sensitive phase-contrast technology applied to X-ray micro-tomography, especially with the extensive use of synchrotron radiation (SR). Performing phase retrieva... H Liu,X Ji,L Sun,... - 《Sci Rep》 被引量: 1发表:...
Computational flattening algorithms have been successfully applied to X-ray microtomography scans of damaged historical documents, but have so far been limited to scrolls, books, and documents with one or two folds. The challenge tackled here is to recon
The image resolution of industrial X-ray computed microtomography (CMT)with focal spot of X-ray source less than 5 micrometer is quite better than that of conventional focal spot CT.In petroleum exploration and development research computed microtomgraphy was used to many technological areas with ...