X-ray imaging with ultra-small-angle X-ray scattering as a contrast mechanism
X-ray imaging with ultra-small-angle X-ray scattering as a contrast mechanism
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DOI：
10.1107/s0021889804016073
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发表时间：
2004-10-01
影响因子：
6.1
通讯作者：
Long, GG
中科院分区：
文献类型：
--
作者：
Levine, LE;Long, GG
介绍了一种利用超小角X射线散射（USAXS）作为对比度机制的透射X射线成像新技术。USAXS成像有时可以在射线照相术和相衬成像不成功的情况下提供对比度。在不同的散射矢量产生的图像突出不同的微观结构特征在相同的样品体积。当与USAXS扫描结合使用时，USAXS成像提供了关于散射物体的大小、形状和空间排列的大量定量和定性三维信息。该成像技术在金属和生物样品上进行了演示。
A new transmission X-ray imaging technique using ultra-small-angle X-ray scattering (USAXS) as a contrast mechanism is described. USAXS imaging can sometimes provide contrast in cases where radiography and phase-contrast imaging are unsuccessful. Images produced at different scattering vectors highlight different microstructural features within the same sample volume. When used in conjunction with USAXS scans, USAXS imaging provides substantial quantitative and qualitative three-dimensional information on the sizes, shapes and spatial arrangements of the scattering objects. The imaging technique is demonstrated on metal and biological samples.