| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce vibration of a frame of an X-ray CT apparatus. <P>SOLUTION: The X-ray CT apparatus in which a frame, an X-ray tube, and an X-ray detector are oppositely arranged, having a rotary part rotatably mounted on the frame for rotating around a subject includes: a storage unit for storing a natural vibration parameter relating to the frame in a stopped state of the rotary part; a vibration parameter detector for detecting a vibration parameter relating to the vibration of the frame generated based on the rotation of the rotary part; a resonance determiner for determining whether or not there is resonance in the frame by comparing the stored natural parameter and the vibration parameter detected by the vibration parameter detector; and a vibration parameter changer for changing the vibration parameter of the frame based on a result of the resonance determiner. <P>COPYRIGHT: (C)2012,JPO&INPIT |
