PROBLEM TO BE SOLVED: To reduce power requirements of apparatus.SOLUTION: An X-ray CT apparatus according to the embodiment comprises an X-ray projection unit, an X-ray detection unit, a plurality of operation units, and a power source control unit. The X-ray projection unit projects X-rays onto a subject. The X-ray detection unit detects X-rays transmitted through the subject and outputs electric signals on the basis of the X-rays. The plurality of operation units execute the processes involved in the generation of images based on the electric signals. The power source control unit controls the power sources of the plurality of operation units according to conditions of examination.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】装置の省電力化を実現すること。【解決手段】実施形態に係るＸ線ＣＴ装置は、Ｘ線照射部と、Ｘ線検出部と、複数の処理部と、電源制御部とを備える。Ｘ線照射部は、被検体に対してＸ線を照射する。Ｘ線検出部は、被検体を透過したＸ線を検出し、当該Ｘ線に基づいた電気信号を出力する。複数の処理部は、電気信号に基づいて、画像生成に関する処理を行う。電源制御部は、検査条件に応じて複数の処理部の電源制御を行なう。【選択図】 図１
