The quest for imaging protocols with ever-reduced dose is one of the most powerful motivators driving the currently exploding field of ghost imaging (GI). Ghost tomography (GT) using single-pixel detection extends the burgeoning field of GI to 3D, with the use of penetrating radiation. For hard x-rays, GT has the potential to relax the constraints that dose rate and detector performance impose on image quality and resolution. In this work, spatially random x-ray intensity patterns illuminate a specimen from various view-angles; in each case, the total transmitted intensity is recorded by a single-pixel (or bucket) detector. These readings, combined with knowledge of the corresponding 2D illuminating patterns and specimen orientations, are sufficient for 3D specimen reconstruction. The experimental demonstration of GT is presented here using synchrotron hard x-rays. This result significantly expands the scope of GI to encompass volumetric imaging (i.e., tomography), of optically opaque objects using penetrating radiation.

中文翻译：

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幽门断层扫描

对剂量不断降低的成像协议的追求是推动鬼影成像（GI）当前爆炸领域的最强大动力之一。使用单像素检测的Ghost层析成像（GT）通过穿透辐射将GI的新兴领域扩展到3D。对于硬X射线，GT有可能放宽剂量率和检测器性能对图像质量和分辨率施加的约束。在这项工作中，空间随机的X射线强度模式从各种视角照亮了标本。在每种情况下，总透射强度都由一个单像素（或水桶）检测器记录。这些读数与相应2D照明模式和标本方向的知识相结合，足以进行3D标本重建。此处使用同步加速器硬X射线展示了GT的实验演示。该结果极大地扩展了GI的范围，使其涵盖了使用穿透辐射的不透明物体的体积成像（即断层扫描）。