Diffraction and imaging using X-rays and neutrons are widely utilized in different fields of engineering, biology, chemistry and/or materials science. The additional information gained from the diffraction signal by X-ray diffraction and computed tomography (XRD-CT) can give this method a distinct advantage in materials science applications compared to classical tomography. Its active development over the last decade revealed structural details in a non-destructive way with unprecedented sensitivity. In the current contribution an attempt to adopt the well-established XRD-CT technique for neutron diffraction computed tomography (ND-CT) is reported. A specially designed "phantom", an object displaying adaptable contrast sufficient for both XRD-CT and ND-CT, was used for method validation. The feasibility of ND-CT is demonstrated, and it is also shown that the ND-CT technique is capable to provide a non-destructive view into the interior of the "phantom" delivering structural information consistent with a reference XRD-CT experiment.

中文翻译：

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粉末衍射计算机断层扫描：同步加速器和中子联合研究

使用 X 射线和中子的衍射和成像被广泛用于工程、生物学、化学和/或材料科学的不同领域。与经典断层扫描相比，通过 X 射线衍射和计算机断层扫描 (XRD-CT) 从衍射信号中获得的附加信息可以使该方法在材料科学应用中具有明显的优势。它在过去十年的积极发展以前所未有的敏感性以非破坏性方式揭示了结构细节。在当前的贡献中，报告了采用成熟的 XRD-CT 技术进行中子衍射计算机断层扫描 (ND-CT) 的尝试。一个专门设计的“幻影”，一种显示出足以满足 XRD-CT 和 ND-CT 的适应性对比度的物体，用于方法验证。证明了ND-CT的可行性，