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Diffraction enhanced imaging: a simple model

2006; Institute of Physics; Volume: 39; Issue: 19 Linguagem: Inglês

10.1088/0022-3727/39/19/004

1361-6463

Peiping Zhu, Qingxi Yuan, Wanxia Huang, Junyue Wang, Hang Shu, Bo Chen, Yijin Liu, Enrong Li, Ziyu Wu,

Advanced X-ray and CT Imaging

Based on pinhole imaging and conventional x-ray projection imaging, a more general DEI (diffraction enhanced imaging) equation is derived using simple concepts in this paper. Not only can the new DEI equation explain all the same problems as with the DEI equation proposed by Chapman, but also some problems that cannot be explained with the old DEI equation, such as the noise background caused by small angle scattering diffracted by the analyser.