| 摘要 |
PROBLEM TO BE SOLVED: To make uniform detection characteristics of each detection cell in a radiation detector in which a radiation detector and a collimator device are configured by arraying a plurality of modules.SOLUTION: A plurality of detector modules and collimator modules are disposed with the joints thereof shifted to a channel direction so that the detection elements adjacent to the joint between the detector modules, and sectioned regions adjacent to the joint between the collimator modules may not overlap one another in the channel direction. Detection characteristics of detection cells corresponding to the detection elements and sectioned regions adjacent to the joint are easy to deteriorate, but can be dispersed avoiding the overlapping of the deterioration. |
