| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and a method for radiation tomographic imaging in which slice thickness can be dynamically switched during scanning and the center of radiation can be arbitrarily moved in the carrying-in direction of a subject. SOLUTION: This system is equipped with an X-ray tube moving part 21 enabled to move the radiation center of an X-ray tube 20 in the z-direction, a collimeter 22 which has an opening adjustable aperture and irradiates an X-ray beam 5 with prescribed width and thickness to a desired area of a detecting element alley 23, a data collecting part 24 which dynamically select detecting signals from the detecting element alley 23 corresponding to a control signal CTL303 during scanning or changes combinations to add detecting signals together, and a central processing unit 30 which changes the radiation center of the X-ray tube 20, an opening of the aperture of the collimeter 22, and data to be collected by the data collecting part 24 corresponding to condition information inputted from the input device 31.
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