X-ray computed tomography apparatus, radiation detector, and method of manufacturing radiation detector

A radiation detector comprising:

• a detector configured to detect radiation that has passed through a subject;
• and
• a collimator unit configured to eliminate scattered radiation from radiation that is incident on the detector,
• wherein the collimator unit includes:
• a plurality of collimator modules each configured to include a plurality of first collimator plates arranged in a grid along a channel direction and a slice direction that are orthogonal to each other;
• a supporter configured to support the collimator modules such that the collimator modules are aligned in a plurality of straight lines along the channel direction and in a plurality of straight lines along the slice direction;
• and
• a fixing unit provided to the supporter and configured to fixe positions of the collimator modules in the channel direction and the slice direction.

A method of manufacturing a radiation detector including a detector configured to detect radiation and a collimator unit configured to eliminate scattered radiation from radiation that is incident on the detector, the method comprising:

• forming a plurality of collimator modules by arranging a plurality of first collimator plates in a grid along a channel direction and a slice direction that are orthogonal to each other;
• supporting, by using a supporter, such that the collimator modules are aligned in a plurality of straight lines along the channel direction and in a plurality of straight lines along the slice direction;
• and
• forming the collimator unit by fixing, by using a fixing unit provided to the supporter, positions of the collimator modules in the channel direction and the slice direction.