Patent ID: 9629601
Date: 2017-04-25
CPC Classifications: A61B,G01T

Claim:
1. A radiation image detecting device being able to perform photography with using an anti-scatter grid where radiation absorbing sections which absorb radiation and radiation transmitting sections which transmit radiation are arranged in a periodic alternating manner in a first direction, said radiation image detecting device comprising: a detection panel having an imaging surface where plural pixels for receiving radiation from a radiation source are provided, a radiation image of an object being detected by said pixels receiving radiation which penetrated an object; and a plurality of dose measuring sensors provided to perform exposure control of said radiation image, being arranged in said imaging surface in said first direction periodically with keeping a space, and detecting radiation dose which penetrated said object to output a signal depending on said dose, wherein said plural dose measuring sensors are arranged so that an arrangement period of said plural dose measuring sensors in said first direction in said imaging surface differs from a fluctuation period of a grid detection signal representing an image of said anti-scatter grid which is obtained when radiation is irradiated equally to said imaging surface and said anti-scatter grid is photographed by said detection panel, an output value of said grid detection signal fluctuating periodically by reflecting an arrangement state in said first direction of said radiation absorbing section and said radiation transmitting section.