PROBLEM TO BE SOLVED: To provide a two-dimensional collimator module which can remove scattered rays in a channel direction and a slice direction, and facilitates assembly and alignment.;SOLUTION: In the two-dimensional collimator module including a first module 10A which supports a plurality of first collimator plates 11 arranged in a channel (x) direction while sandwiching the collimator plates in a slice (z) direction with a pair of first blocks 12,and a second module 30A which has a plurality of second collimator plates 31 arranged in the z direction between a pair of second blocks 32 arranged so as to face each other in the z direction, and supports the second blocks 32 and the second collimator plate 31 in an X-ray incident side and an X-ray emission side with X-ray transmissive support members 33 and 35, the first block 12 has a column portion 12T extending in a predetermined side of the X-ray incident side or the X-ray emission side, the second module 30A is arranged in the predetermined side of the first module 10A, and one of the second blocks 32 is fixed onto the column portion 12T while abutting on the column portion in the z direction.;COPYRIGHT: (C)2012,JPO&INPIT
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