Ultrafast limited-angle-type x-ray tomography
Ultrafast limited-angle-type x-ray tomography
复制标题
超快有限角度型X射线断层扫描
DOI：
10.1063/1.2787879
复制
发表时间：
2007
影响因子：
4
通讯作者：
H. Mayer
中科院分区：
文献类型：
--
作者：
M. Bieberle;F. Fischer;E. Schleicher;U. Hampel;D. Koch;K. S. D. C. Aktay;H.;H. Mayer
作者提出了一种超快电子束X射线计算机断层扫描技术，可用于快速过程的成像，例如技术或生物对象中的多相流或运动部件。该装置由一个具有快速偏转能力的电子束单元和一个超快多元素X射线探测器组成，并实现了10000帧闪烁成像速率。由于氡空间的全采样需要源路径和探测器的角度重叠，这大大降低了轴向分辨率，作者设计了一种有限角度型层析成像。作为演示，他们可视化了颗粒和气泡在停滞液体中上升的运动。
The authors present an ultrafast electron beam x-ray computed tomography technique usable for imaging of fast processes, such as multiphase flows or moving parts in technical or biological objects. The setup consists of an electron beam unit with fast deflection capability and an ultrafast multielement x-ray detector and achieves 10000frames∕s image rate. Since full sampling of the Radon space requires an angular overlap of source path and detector which strongly decreases axial resolution, the authors devised a limited-angle-type tomography. As a demonstration they visualized the movement of particles and gas bubbles rising in a stagnant liquid.