用于X射线成像的菲涅耳波带片望远镜I：准平行光束实验
Fresnel zone plate telescopes for X-ray imaging I: experiments with a quasi-parallel beam
摘要：
菲涅耳波带片（FZP）的组合可以成为一个优秀的X射线成像望远镜。我们在这里提出的结果，我们的实验与几对钨制成的菲涅耳波带片的存在下，X射线源保持在约45英尺的距离。准平行光束使我们能够研究放置在轴上以及离开望远镜轴的源。本文对波带片在准平行光源作用下产生的条纹图进行了理论研究。我们比较了从实验中获得的图案与我们的蒙特卡罗模拟。还通过从这两种图案去卷积来重建图像。我们比较这样的望远镜与其他X射线成像设备在空间天文学的性能。
英文摘要：
Combination of Fresnel Zone Plates (FZP) can make an excellent telescope for imaging in X-rays. We present here the results of our experiments with several pairs of tungsten made Fresnel Zone plates in presence of an X-ray source kept at a distance of about 45 feet. The quasi-parallel beam allowed us to study sources placed on the axis as well as off the axis of the telescope. We present theoretical study of the fringe patterns produced by the zone plates in presence of a quasi-parallel source. We compare the patterns obtained from experiments with those obtained by our Monte-Carlo simulations. The images are also reconstructed by deconvolution from both the patterns. We compare the performance of such a telescope with other X-ray imaging devices used in space-astronomy.
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