| 摘要 |
PROBLEM TO BE SOLVED: To arrange a vacuum pump so as to exhibit its original function without being affected by the inclination of a system main body in a multiple radiation source X-ray CT system. SOLUTION: The multiple radiation source R-ray CT system is provided with the system main body which has a central space to locate an object to be examined and is inclined with a horizontal line across the central axial line of the object to be examined as its center, a vacuum container provided in the system main body while annularly surrounding the object to be examined, a number of X-ray generating means parallel provided inside the vacuum container in a circumferential direction for irradiating the object to be examined with X-rays, a detector provided in the system main body while annularly surrounding the object to be examined on the inner peripheral side of the vacuum container for detecting X-rays transmitted through the object to be examined, and the vacuum pump provided in the system main body for evacuating the inside of the vacuum container, and the vacuum pump is positioned so that the rotation axial line of its rotator is parallel with the inclination center axial line of the system main body. COPYRIGHT: (C)2004,JPO
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