| 摘要 |
PROBLEM TO BE SOLVED: To provide a means for surely making radiation come into the imaging region of a radiation receiving means in an X-ray imaging apparatus. SOLUTION: In the apparatus, an X-ray beam 11 is directed to pass an object to be imaged. The X-ray imaging apparatus 1 comprises an X-ray source 5 disposed in front of the object to be imaged, a first collimator 6 connected to the X-ray source, the radiation receiving means 15 disposed behind the object being imaged, and also discriminating means 20-22 reacting to the radiation of the X-ray beam. The discriminating means 20-22 make the radiation surely come into the imaging region of the radiation receiving means 15.
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