Patent ID: 8859975

Claim:
A radiation detector module comprising: a scintillator for converting radiation made incident from a predetermined direction to light; a photoelectric conversion device having a plurality of photoelectric conversion regions arrayed two-dimensionally, and for receiving light from the scintillator at the photoelectric conversion regions; a connection substrate formed by stacking a plurality of dielectric layers, and mounted with the photoelectric conversion device on one substrate surface thereof; and an integrated circuit device mounted on the other substrate surface of the connection substrate, and for individually reading out electrical signals output from each of the plurality of photoelectric conversion regions of the photoelectric conversion device, the integrated circuit device having a plurality of unit circuit regions arrayed two-dimensionally and separated from each other, the plurality of unit circuit regions including a plurality of readout circuits corresponding to the plurality of photoelectric conversion regions, respectively, the connection substrate having a plurality of metallic through conductors provided penetrating through at least three dielectric layers adjacent to each other out of the plurality of dielectric layers, and for serving as a part of paths for the electric signals, wherein a plurality of metallic radiation shielding films are formed integrally with each of the plurality of through conductors and separated from each other, the radiation shielding films being provided at two or more interlayer parts in the at least three dielectric layers, and each of a plurality of first regions of projection of the plurality of radiation shielding films onto a virtual plane normal to the predetermined direction includes each of a plurality of second regions of projection of the plurality of unit circuit regions onto the virtual plane.