X-ray CT apparatus collimator, method of manufacturing the X-ray CT apparatus collimator, and X-ray CT apparatus

An X-ray computer tomography apparatus collimator manufacturing method of manufacturing a collimator which is used for an X-ray computer tomography apparatus comprising an X-ray exposing unit which exposes X-rays and an X-ray detection unit which is placed to face the X-ray exposing unit through a subject and detects X-rays striking a detection surface, and is provided on the detection surface to remove scattered X-rays, comprising:

• assembling, by using side surface members, a first support unit including a plurality of first grooves formed along an X-ray incident direction from the X-ray exposing unit to the detection surface and a second support unit including a plurality of second grooves formed along the X-ray incident direction from the X-ray exposing unit to the detection surface so as to correspond to said plurality of first grooves;
• fixing, to the detection surface side of the first support unit and second support unit, a first support unit including a plurality of third grooves for fitting of peripheries of the collimator plates fitted in the first grooves and the second grooves which face each other which are located on the detection surface side;
• fitting collimator plates in the first grooves, the second grooves, and the third grooves which face each other;
• and
• bonding said each collimator plate to the first groove, the second groove, and the third groove which correspond to said each collimator plate.

An X-ray computer tomography apparatus collimator manufacturing method of manufacturing a collimator which is used for an X-ray computer tomography apparatus comprising an X-ray exposing unit which exposes X-rays and an X-ray detection unit which is placed to face the X-ray exposing unit through a subject and detects X-rays striking a detection surface, and is provided on the detection surface to remove scattered X-rays, comprising:

• assembling, by using side surface members, a first support unit including a plurality of first grooves formed along an X-ray incident direction from the X-ray exposing unit to the detection surface and a second support unit including a plurality of second grooves formed along the X-ray incident direction from the X-ray exposing unit to the detection surface so as to correspond to said plurality of first grooves;
• fixing, to the detection surface side of the first support unit and second support unit, a first support unit including a plurality of third grooves for fitting of peripheries of the collimator plates fitted in the first grooves and the second grooves corresponding to each other which are located on the detection surface side;
• fixing the second support including slits which allow the collimator plates fitted in the first grooves and the second grooves which face each other to pass through the slits and support peripheries of the collimator plates which are on an X-ray incident side to the X-ray incident side of the first support unit and the second support unit;
• fitting collimator plates in the first grooves, the second grooves, and the third grooves which face each other upon making the collimator plates pass through the slits;
• and
• bonding the collimator plates to the first grooves, the second grooves, the third grooves, and the slits which correspond to each other.