| 摘要 |
PROBLEM TO BE SOLVED: To reduce the weight of a radiation detector. SOLUTION: The radiation detector comprises a photoelectric conversion elements for converting light based on radiation into charges and control elements for controlling read out of the converted charges arranged on a plane in a pixel area wherein a substrate having a circuit for driving the control elements and a substrate having a circuit for processing the charges read out by the control element are disposed along one side of the pixel area while being superposed in the incident direction of light and a material for shielding radiation to the drive circuit and the processing circuit is provided above the substrate on the upper side.
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