X-ray fan beam coded aperture transmission and diffraction imaging for fast material analysis.
X-ray fan beam coded aperture transmission and diffraction imaging for fast material analysis.
复制标题
DOI：
10.1038/s41598-021-90163-0
复制
发表时间：
2021-05-19
影响因子：
4.6
通讯作者：
Kapadia AJ
中科院分区：
文献类型：
--
作者：
Stryker S;Greenberg JA;McCall SJ;Kapadia AJ
x射线透射成像已用于各种基于形状和密度的高分辨率测量应用中。同样，x射线衍射（XRD）成像已广泛用于基于分子结构的材料鉴定。结合这些x射线方法有可能提供高分辨率的材料识别，超过单独使用任何一种方式的能力。然而，XRD成像方法测量时间长，空间分辨率差，限制了其应用，这通常阻碍了x射线透射和衍射的快速组合测量。在这项工作中，我们提出了一种新的x射线扇形光束编码孔径传输和衍射成像系统，该系统使用商用组件开发，用于工业和生物医学样品的快速准确无损成像。该成像系统使用160 kV轫致辐射x射线源，空间分辨率约为1 × 1 mm2，光谱精度为> 95%，每150 mm扇形光束片仅曝光15 s。据报道，该技术在地质成像、药物检测和医学诊断等方面的应用。成像系统的性能表明，在适合各种工业和生物医学应用的扫描时间内，相对于单独的传输成像，改进了材料分化。
X-ray transmission imaging has been used in a variety of applications for high-resolution measurements based on shape and density. Similarly, X-ray diffraction (XRD) imaging has been used widely for molecular structure-based identification of materials. Combining these X-ray methods has the potential to provide high-resolution material identification, exceeding the capabilities of either modality alone. However, XRD imaging methods have been limited in application by their long measurement times and poor spatial resolution, which has generally precluded combined, rapid measurements of X-ray transmission and diffraction. In this work, we present a novel X-ray fan beam coded aperture transmission and diffraction imaging system, developed using commercially available components, for rapid and accurate non-destructive imaging of industrial and biomedical specimens. The imaging system uses a 160 kV Bremsstrahlung X-ray source while achieving a spatial resolution of ≈ 1 × 1 mm2 and a spectral accuracy of > 95% with only 15 s exposures per 150 mm fan beam slice. Applications of this technology are reported in geological imaging, pharmaceutical inspection, and medical diagnosis. The performance of the imaging system indicates improved material differentiation relative to transmission imaging alone at scan times suitable for a variety of industrial and biomedical applications.
登录
查看更多内容
影响因子：
4.6
作者：
Fabregat-Safont D;Carbón X;Ventura M;Fornís I;Guillamón E;Sancho JV;Hernández F;Ibáñez M
通讯作者：
Ibáñez M
影响因子：
3.8
作者：
Greenberg, Joel A.;Krishnamurthy, Kalyani;Brady, David
通讯作者：
Brady, David
影响因子：
6.1
作者：
Drakos, Ireneos;Kenny, Peter;Speller, Robert
通讯作者：
Speller, Robert
影响因子：
3.8
作者：
Hassan, Mehadi;Greenberg, Joel A.;Brady, David J.
通讯作者：
Brady, David J.
影响因子：
4.2
作者：
Lazzari, Olivier;Jacques, Simon;Barnes, Paul
通讯作者：
Barnes, Paul