RADIATION DETECTION MODULE, AND RADIATION DETECTOR AND X-RAY CT APPARATUS USING THE SAME

PROBLEM TO BE SOLVED: To provide a radiation detection module that can be easily manufactured and realizes uniform detection accuracy among radiation detection elements.SOLUTION: Each collimator plate 13 has an upper protrusion and a lower protrusion at each end. Support parts 161 and 162 are disposed on both sides of radiation detection elements and have plural upper grooves 163 and plural lower grooves 164, respectively. Inserting the upper protrusions and lower protrusions of the collimator plate 13 into the upper grooves 163 and lower grooves 164 supports the collimator plate 13 at a predetermined tilt angle. The upper grooves 163 and lower grooves 164 are perpendicular to a principal plane of a base plate 15 in a longitudinal direction D. The positions of the upper grooves 163 and lower grooves 164 are shifted in a principal plane direction of the base plate 15 in accordance with the tilt angle of the supported collimator plate 13.