| 摘要 |
PROBLEM TO BE SOLVED: To properly position an area of interest of a test object within a narrow field-of-view range restricted by a size of a diffraction grating when capturing a phase-contrast image by using the diffraction grating.SOLUTION: A radiographic imaging method includes: preliminarily capturing an image of the test object over a range wider than a field-of-view range restricted by first and second absorption-type gratings before actual imaging where phase-contrast image is captured; erasing a shadow 53b of the first and second absorption-type gratings from the preliminarily captured image 53 by correction; displaying, on a monitor, the preliminarily captured image 53 whose shadow 53b is erased and a field-of-view frame 55 created from a contour of the shadow 53b; setting the area of interest where the actual imaging is conducted by moving the field-of-view frame 55 on the preliminarily captured image 53; and relatively moving a capturing system, comprising an X-ray source and a capturing unit, and the test object based on a moving position of the field-of-view frame 55. |
