Collimator plate, collimator module, radiation detecting device, radiography apparatus and assembling method of collimator module

摘要

A collimator module having high precision is provided at low cost. A method for assembling a collimator module 200, the collimator module 200 comprising: a plurality of first collimator plates 11 arrayed in a first direction, having a plurality of slots 111 formed on each plate surface; and a plurality of second collimator plates 12 arrayed in a second direction orthogonal to the first direction, each second collimator plate 12 penetrates the respective slots in the first direction, the method comprises: a step of positioning the plurality of first collimator plates 11 by moving the first collimator plate 11 in one direction of the second direction, so that a side wall of a first cutout 112 formed on an edge of a radiation incident side or a radiation output side of the first collimator plate 11 is contacted to a member extending to the first direction.