Method for manufacturing radioactive ray detector and apparatus for manufacturing radioactive ray detector

The purpose of the present invention is to provide an apparatus and a method for manufacturing a radioactive ray detector capable of increasing luminance, resolution, and the utilization efficiency of a scintillator by performing alignment simply and with a high precision. A main purpose of the present invention is to provide the manufacturing of a radioactive ray detector and a device enabling such manufacturing, by: setting, on the basis of information acquired by an imaging means, at least two reference points satisfying the following condition, in a grid-shaped partition wall formed on a light emitting body panel and in a photoelectric conversion element formed in a photoelectric conversion panel; performing a calculation using information on the reference points; and performing, on the basis of a calculation result, a location adjusting step for operating a mount on which the light emitting body panel and/or the photoelectric conversion panel is placed.