The feasibility of a new design and measurement concept of a combined optical and x-ray interferometer (COXI) is demonstrated here. Mechanical noise in the x-ray interferometer can be cancelled efficiently with fast and synchronous detection of the optical interferometer phase and x-ray counts. The scan-length requirement of the decadic step method of conventional COXI setups is reduced by more than one order of magnitude due to the correlation between single-photon interference events. The actual scan length of the shown setup is limited to 4 µm. It is estimated that a future update will enable us to measure the lattice parameter of 28 Si, at least with the targeted relative statistical reproducibility of 3 × 10 −9 .

中文翻译：

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连续扫描单晶单光子X射线干涉仪

此处展示了结合光学和X射线干涉仪（COXI）的新设计和测量概念的可行性。通过快速，同步地检测光学干涉仪的相位和X射线计数，可以有效地消除X射线干涉仪中的机械噪声。由于单光子干扰事件之间的相关性，传统COXI设置的十年步进方法的扫描长度要求降低了一个数量级以上。所示设置的实际扫描长度限制为4 µm。估计未来的更新将使我们能够至少以目标相对统计重复性为3×10 -9来测量28 Si的晶格参数。