| 摘要 |
PROBLEM TO BE SOLVED: To reduce influence of read noise occurring in time of X-ray detection for performing alignment, upon an imaging result of a subject, in an X-ray imaging apparatus performing the alignment based on a detection result of X-rays during subject imaging.SOLUTION: An X-ray imaging apparatus 1 includes: optical elements forming a periodic pattern by using X-rays from an X-ray source 101; alignment marks of the optical elements; a first detector 108; a second detector 109; and movement means moving at least one of a position and an angle of each of the optical elements on the basis of a detection result of the second detector 109. The first detector 108 detects X-rays passing through the optical elements and a subject 103, and the second detector 109 detects X-rays from the alignment marks. The movement means has: a movement instruction part 206 giving an instruction of movements of the optical elements on the basis of the detection result of the second detector; and movement parts 201-205 moving the optical elements on the basis of the instruction of the movement instruction part. |
