Abstract: A method is provided for assembling a collimator module including a plurality of first collimator plates arrayed in a first direction, each first collimator plate having a plurality of slots formed on a plate surface, and a plurality of second collimator plates arrayed in a second direction orthogonal to the first direction, wherein each second collimator plate penetrates respective slots along the first direction so as to form a lattice-shape. The method includes positioning the plurality of first collimator plates by moving a first collimator plate in one direction along the second direction, so that a side wall of a first cutout formed on an edge of a radiation incident side or a radiation output side of the first collimator plate contacts a member extending in the first direction.

Abstract: A method is provided for assembling a collimator module including a plurality of first collimator plates arrayed in a first direction, each first collimator plate having a plurality of slots formed on a plate surface, and a plurality of second collimator plates arrayed in a second direction orthogonal to the first direction, wherein each second collimator plate penetrates respective slots along the first direction so as to form a lattice-shape. The method includes positioning the plurality of first collimator plates by moving a first collimator plate in one direction along the second direction, so that a side wall of a first cutout formed on an edge of a radiation incident side or a radiation output side of the first collimator plate contacts a member extending in the first direction.

Abstract: 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.

Abstract: 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.

Abstract: A method is provided for assembling a collimator module including a plurality of first collimator plates arrayed in a first direction, each first collimator plate having a plurality of slots formed on a plate surface, and a plurality of second collimator plates arrayed in a second direction orthogonal to the first direction, wherein each second collimator plate penetrates respective slots along the first direction so as to form a lattice-shape. The method includes positioning the plurality of first collimator plates by moving a first collimator plate in one direction along the second direction, so that a side wall of a first cutout formed on an edge of a radiation incident side or a radiation output side of the first collimator plate contacts a member extending in the first direction.