PROBLEM TO BE SOLVED: To provide an X-ray fluoroscope capable of quickly performing radioscopy regardless of arrangement of a treatment beam irradiation part.SOLUTION: A control unit 30 includes: an imaging system selection information storage part 32 that stores imaging system selection information representing a relationship between a position of a treatment beam irradiation part in a treatment beam irradiation device 90, and two X-ray imaging systems out of four X-ray imaging systems to be used when the treatment beam irradiation part is at the position and an imaging system selection part 33 that selects the two X-ray imaging systems out of the four X-ray imaging systems on the basis of the position information of the treatment beam irradiation part acquired from the treatment beam irradiation device 90, and the imaging system selection information stored in the imaging system selection information storage part 32.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】 治療ビーム照射部の配置にかかわらず、迅速にX線透視を実行することが可能なX線透視装置を提供する。【解決手段】 制御部30は、治療ビーム照射装置90における治療ビーム照射部の位置と、治療ビーム照射部がその位置にあるときに使用すべき4個のX線撮影系のうちの2個のX線撮影系との関係を示す撮影系選択情報を記憶する撮影系選択情報記憶部32と、治療ビーム照射装置90から取得した治療ビーム照射部の位置情報と、撮影系選択情報記憶部32に記憶した撮影系選択情報とに基づいて、4個のX線撮影系のうちの2個のX線撮影系を選択する撮影系選択部33とを備える。【選択図】 図2
