Noninterferometric phase-contrast images obtained with incoherent x-ray sources
Noninterferometric phase-contrast images obtained with incoherent x-ray sources
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DOI：
10.1364/ao.50.001765
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发表时间：
2011-04-20
期刊：
影响因子：
1.9
通讯作者：
Speller, Robert D.
中科院分区：
文献类型：
--
作者：
Olivo, Alessandro;Ignatyev, Konstantin;Speller, Robert D.
我们报告什么被认为是第一个全尺寸的图像获得的编码孔径的概念，它使用传统的X射线源，而不需要准直/孔径的输出。我们讨论了与其他方法的基础物理原理的差异，并解释了为什么这些可能会导致更有效地利用源。特别是，我们讨论了如何评估的第一成像系统提供了有前途的迹象上的方法的潜力，以检测传统的吸收方法不可见的细节，使用增加的平均X射线能量，并减少曝光时间-所有重要方面与现实世界的实现。(C)2011年美国光学学会
We report on what are believed to be the first full-scale images obtained with the coded aperture concept, which uses conventional x-ray sources without the need to collimate/aperture their output. We discuss the differences in the underpinning physical principles with respect to other methods, and explain why these might lead to a more efficient use of the source. In particular, we discuss how the evaluation of the first imaging system provided promising indications on the method's potential to detect details invisible to conventional absorption methods, use an increased average x-ray energy, and reduce exposure times-all important aspects with regards to real-world implementations. (C) 2011 Optical Society of America