| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent deterioration of image quality of a phase contrast image caused by stripe-like noise occurring in a direction corresponding to signal lines of an X-ray image detector. <P>SOLUTION: The X-ray imaging system 10 includes an X-ray source 11, first and second absorption type gratings 21, 22, and a flat panel detector (FPD) 20, and a plurality of pieces of imaging are performed while moving the second absorption type grating 22 in an x-direction to the first absorption type grating 21. Upon the FPD 20, pixels are arranged in the x-direction and in a y-direction perpendicular thereto, and pixel groups arranged in the x-direction are connected in common by charge-reading signal lines. A phase differential image generation part 30 generates a phase differential image based on data on a plurality of images obtained by the plurality of pieces of the imaging. A phase contrast image generation part 31 generates the phase contrast image by integrating the phase differential image generated by the phase differential image generation part 30 in the direction corresponding to the signal lines of the FPD 20. <P>COPYRIGHT: (C)2012,JPO&INPIT |
