We demonstrate backscattering X-ray imaging using a Fresnel zone aperture (FZA), where the line width of the outermost circle is 100μm. The method is a lensless imaging technique employing an optical aperture instead of a lens. We successfully reconstructed test objects from four images observed using a series of FZAs without an iterative procedure during the reconstruction process. We also confirmed the successful reconstruction of a series of images by changing the focal plane in a short computer calculation time, indicating that 3D information can be obtained by measuring a single set of four images.

中文翻译：

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使用菲涅耳区孔径的背向散射 X 射线成像

我们展示了使用菲涅耳带孔径 (FZA) 的背向散射 X 射线成像，其中最外圈的线宽为 100 μ m。该方法是采用光学孔径代替透镜的无透镜成像技术。我们成功地从使用一系列 FZA 观察到的四个图像重建了测试对象，而在重建过程中没有迭代过程。我们还通过在较短的计算机计算时间内通过改变焦平面来确认一系列图像的成功重建，表明通过测量一组四幅图像可以获得3D信息。