X-ray imaging system and method based on grating phase contrast and photon counting
A photon counting and imaging system technology, applied in the field of medical imaging, can solve the problems of small luminous flux, narrow beam, long exposure time of the detector, etc., and achieve the effect of improving the detection rate
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[0059] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0060] The basic idea of the present invention is to use photon counting technology, phase contrast imaging technology and three-dimensional reconstruction technology to perform non-destructive detection on weakly absorbing substances, so as to observe and identify the internal tissue structure of the sample. The following is a detailed description of this.
[0061] figure 2 It is a schematic diagram of the overall structure of the X-ray imaging system in one embodiment of the present invention. The X-ray imaging system includes components such as an X-ray source, a light source grating, a sample scanning platform, a phase grating, an analysis grating, a photon counting detector, and a three-dimensional reconstruction system (not shown in the figure). The above light source grating, phase grating and analysis grating have a plana...
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