公开(公告)号：US10267752B2

公开(公告)日：2019-04-23

申请号：US15328437

申请日：2015-11-02

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： Li Zhang ,  Zhiqiang Chen ,  Xiaolei Jiang ,  Xiaohua Zhu ,  Xin Jin

IPC分类号： G01N23/04 ,  G01N23/046

摘要： The present disclosure relates to X-ray imaging systems and methods. An exemplary system may comprise a distributed X-ray source arrangement, a fixed grating module, an X-ray detecting device, and a computer workstation. In one illustrative implementation, X-ray sources of the distributed incoherent X-ray source arrangement may sequentially generate and emit X-rays to an object to be detected. Further, for each exposure, the X-ray detecting device may receive the X-rays, wherein after a series of stepping exposures and corresponding data acquisitions, at each pixel of the X-ray detecting device, X-ray intensities are represented as an intensity curve; the intensity curve may be compared to an intensity curve in the absence of the object to be detected, and a pixel value at each pixel may be obtained from a variation of the intensity curves; and image information of the object to be detected may be obtained according to such pixel values.

公开(公告)号：US10267753B2

公开(公告)日：2019-04-23

申请号：US15328881

申请日：2015-10-28

申请人： Nuctech Company Limited

发明人： Li Zhang ,  Zhiqiang Chen ,  Xiaolei Jiang ,  Xiaohua Zhu ,  Xin Jin

IPC分类号： G01N23/04 ,  G01N23/046 ,  G01N23/087 ,  A61B6/00 ,  A61B6/03

摘要： The present disclosure relates to a multi-spectrum X-ray grating-based imaging system and imaging method. In one illustrative implementation, an exemplary multi-spectrum X-ray grating-based imaging system according to the present disclosure may comprise an incoherent X-ray source for emitting X-rays to irradiate an object to be detected, a grating module comprising a first absorption grating and a second absorption grating which are disposed in parallel to each other and are sequentially arranged in an X-ray propagation direction, and an energy-resolved detecting device for receiving the X-rays that have passed through the first absorption grating and the second absorption grating.