PROBLEM TO BE SOLVED: To improve maintainability.SOLUTION: An X-ray computer tomography apparatus according to an embodiment includes a rotating frame and a moving mechanism provided on the rotating frame. Lest a first member being a maintenance target and a second member other than this interfere with each other, the moving mechanism supports, movably with respect to the rotating frame, the first member and the second member between a first arrangement for photographing and a second arrangement for maintenance.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】メンテナンス性を改善すること。【解決手段】実施形態に係るX線コンピュータ断層撮影装置は、回転フレームと、前記回転フレームに設けられた移動機構とを含む。移動機構は、メンテナンス対象の第1部材と他の第2部材とが干渉しないように、前記第1部材及び前記第2部材を撮影用の第1配置と保守用の第2配置との間で前記回転フレームに対して移動可能に支持する。【選択図】 図2