| 摘要 |
PROBLEM TO BE SOLVED: To provide a relatively low-cost and high picture quality, and high speed X-ray CT device applying a small dynamic load to an X-ray source and producing low noise. SOLUTION: This X-ray CT device is disposed with 16 X-ray tubes 31 and a plurality of detectors 32 surrounding a subject 30, the X-ray tube 31 is rotated by 22.5°around the subject 30 within 0.3s, or a single scanning time, and the X-ray is irradiated from each X-ray tube 31 for 45 times in the single scanning time, so that 720 projection data are obtained. The X-ray tube 31 detects the position where the X-ray tube 31 irradiates the X-ray based on a time chart showing a timing when the X-ray tube 31 irradiates the X-ray, the projection data are reorganized, and the images are reconstructed. COPYRIGHT: (C)2003,JPO
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