Collimator, manufacturing method of collimator, and X-ray CT device

An X-ray CT device, comprising:

• a lattice structure comprising a material that substantially prevents transmission of X-rays, the lattice structure comprising a plurality of first plate-shaped parts disposed orthogonally to a plurality of second plate-shaped parts, each of the plurality of first plate-shaped parts interlocking with each of the plurality of second plate-shaped parts and defining a grid-like pattern of rectangular openings that are oriented toward a common point outside of the lattice structure, wherein:
• each of the plurality of first plate-shaped parts comprises a first slotted plate part having a plurality of first slits formed thereon that is fixed to each of the plurality of second plate-shaped parts;
• a second slotted plate part having a plurality of second slits formed thereon is coupled to a side of the second plate-shaped parts opposite to the first slotted plate part, and;
• an adjustment plate part is disposed between the first slotted plate part and the second slotted plate part;
• wherein
• each of the plurality of second plate-shaped parts includes a plurality of closed slits formed therein for receiving each of the first slotted plate part, the second slotted plate part, and the adjustment plate part therein.

A method for manufacturing a collimator, the method comprising:

• forming a plurality of first plate-shaped parts, each of the plurality of first plate-shaped parts comprising a first slotted plate part having a plurality of first slits formed thereon and a second slotted plate part having a plurality of second slits formed thereon;
• forming a plurality of second plate-shaped parts having a plurality of closed slits formed thereon;
• inserting each of the first slotted plate part and the second slotted plate part into each of the plurality of closed slits of the second plate-shaped parts;
• and
• inserting an adjustment plate into each of the plurality of closed slits of the second plate-shaped parts in a position between each of the first slotted plate part and the second slotted plate part to form a lattice structure.