Pelliccia Daniele, Olbinado Margie P, Rack Alexander, Kingston Andrew M, Myers Glenn R, Paganin David M
Instruments and Data Tools Pty Ltd, Victoria 3178, Australia.
School of Science, RMIT University, Victoria 3001, Australia.
IUCrJ. 2018 Jun 7;5(Pt 4):428-438. doi: 10.1107/S205225251800711X. eCollection 2018 Jul 1.
An experimental procedure for transmission X-ray ghost imaging using synchrotron light is presented. Hard X-rays from an undulator were divided by a beamsplitter to produce two copies of a speckled incident beam. Both beams were simultaneously measured on an indirect pixellated detector and the intensity correlation between the two copies was used to retrieve the ghost image of samples placed in one of the two beams, without measuring the samples directly. Aiming at future practical uses of X-ray ghost imaging, the authors discuss details regarding data acquisition, image reconstruction strategies and measure the point-spread function of the ghost-imaging system. This approach may become relevant for applications of ghost imaging with X-ray sources such as undulators in storage rings, free-electron lasers and lower-coherence laboratory facilities.
本文介绍了一种利用同步加速器光进行透射式X射线鬼成像的实验方法。来自波荡器的硬X射线被分束器分成两束，形成两束有散斑的入射光束。两束光同时在间接像素探测器上进行测量，利用两束光之间的强度相关性来获取放置在其中一束光中的样品的鬼成像，而无需直接测量样品。针对X射线鬼成像未来的实际应用，作者讨论了数据采集、图像重建策略的细节，并测量了鬼成像系统的点扩散函数。这种方法可能适用于利用诸如储存环中的波荡器、自由电子激光器和低相干实验室设备等X射线源进行鬼成像的应用。
