PROBLEM TO BE SOLVED: To provide an X-ray computed tomography device capable of improving the image resolution and a diagnostic function while preventing the upsizing and complication of the device.SOLUTION: The X-ray computed tomography device, including a rotor that has an X-ray generating part and an X-ray detection section, and a fixing rack that supports the rotor rotatably, includes two or more magnetic bearings that support the rotor, and a focal shifting mechanism which shifts a focal point of X-rays exposed from the X-ray generating part by adjusting the suction power between the rotor and those magnetic bearings.COPYRIGHT: (C)2012,JPO&INPIT【課題】装置の大型化・複雑化を防止しつつ、画像分解能や診断機能を向上させることが可能なX線コンピュータ断層撮影装置を提供する。【解決手段】X線発生部及びX線検出部を有する回転体と、前記回転体を回転可能に支持する固定架台とを備えたX線コンピュータ断層撮影装置であって、前記回転体を支持する複数の磁気軸受と、前記回転体と前記磁気軸受間の吸引力を調整することによりX線発生部から曝射されるX線の焦点を移動させる焦点移動機構と、を備える。【選択図】図4
