PROBLEM TO BE SOLVED: To provide a radiation detector capable of saving space and improving the moisture-proof performance, and provide a manufacturing method of the detector.SOLUTION: A radiation detector of an embodiment includes: an array substrate having a plurality of photoelectric conversion elements a scintillator layer that is disposed on the plurality of photoelectric conversion elements, and converts radiation into fluorescent light a base portion that is disposed on the array substrate, has a frame shape in the plan view, and surrounds the scintillator layer an overhang portion that is disposed on the base portion integrally with the base portion, and projects from the base portion toward the scintillator layer and a moisture-proof body that covers the upside of the scintillator layer, and has a periphery whose vicinity is bonded to the top surface of at least the overhang portion.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】省スペース化と防湿性能の向上とを図ることができる放射線検出器及びその製造方法を提供することである。【解決手段】実施形態に係る放射線検出器は、複数の光電変換素子を有するアレイ基板と、前記複数の光電変換素子の上に設けられ、放射線を蛍光に変換するシンチレータ層と、前記アレイ基板の上に設けられ、平面視において枠状を呈し、前記シンチレータ層を囲む基部と、前記基部の上に前記基部と一体に設けられ、前記基部から前記シンチレータ層に向けて突出するオーバーハング部と、前記シンチレータ層の上方を覆い、周縁部近傍が前記少なくともオーバーハング部の上面に接合された防湿体と、を備えている。【選択図】図2
