RADIATION DETECTION DEVICE AND RADIATION TOMOGRAPHIC APPARATUS, AND METHOD FOR ASSEMBLING RADIATION DETECTION DEVICE

摘要

A radiation detection device is provided. The radiation detection device includes a pair of rails spaced in a slice direction and extending parallel to a channel direction, and a plurality of collimator modules arranged along the channel direction on a radiation exit side of the pair of rails, wherein at least one of the pair of rails extending along the channel direction includes a plate member with a plurality of notches formed along the radiation exit side, and wherein the collimator modules each include a first pin protruding on a radiation incidence side and attached to the pair of rails with the first pin fitted in one of the notches of the plate member.