Patent ID: 8735829

Claim:
A radiographic image capturing system comprising: a radiographic image capturing device that comprises a radiation detector in which pixels having a sensitivity with respect to radiation or light into which radiation has been converted are disposed two-dimensionally at a predetermined pixel spacing, and that captures a radiographic image expressed by radiation applied to an imaging surface; a grid that is placed on a radiation source side of the radiation detector, the grid comprising absorbing members that are disposed at a predetermined spacing and absorb radiation; an acquiring unit that acquires an angle of inclination of the grid, with respect to an array direction of the pixels of the radiation detector, with which a spatial frequency of moiré fringes generated by the absorbing members of the grid in the radiographic image captured by the radiation detector is equal to or greater than a predetermined spatial frequency; and a processor that executes predetermined processing for making a relative angle between the grid and the radiation detector the acquired angle of inclination, wherein the predetermined spatial frequency is a spatial frequency of human body signals obtained by Fourier transforming, and mapping in a frequency space, a radiographic image representing a human body.