PROBLEM TO BE SOLVED: To provide an X-ray CT device and its controlling method capable of effectively using regenerative energy stored in a regenerative resistance.SOLUTION: The X-ray computerized tomography device is equipped with an X-ray generating means for exposure of X-rays toward a test subject, a detecting means for detecting the X-ray exposure from the X-ray generating means and passed through the test subject, a supporting means for supporting the X-ray generating means and the detecting means, a driving means for rotating and driving the support means, and a controlling means for controlling the driving means, storing the regenerative energy formed as the rotary speed of the supporting means is reduced, and supplying the stored regenerative energy to the driving means to use it for rotating and driving the supporting means.COPYRIGHT: (C)2007,JPO&INPIT【課題】回生抵抗に蓄積された回生エネルギーを有効利用することができるX線CT装置及びその制御方法を提供すること。【解決手段】被検体に向けてX線を曝射するX線発生手段と、前記X線発生手段から曝射され前記被検体を透過したX線を検出する検出手段と、前記X線発生手段と前記検出手段とを支持する支持手段と、前記支持手段を回転駆動する駆動手段と、前記駆動手段を制御し、前記支持手段の回転速度が減速されたときに生成される回生エネルギーを蓄積し、その蓄積された回生エネルギーを前記駆動手段に供給して前記支持手段の回転駆動に用いる制御手段とを備えた。【選択図】 図2
