PROBLEM TO BE SOLVED: To provide a gantry device for X-ray CT allowing the reduction of air flow noise, while sufficiently radiating heat from an X-ray tube.SOLUTION: A gantry device for X-ray CT includes: a casing and a rotor provided with an X-ray tube and an X-ray detector oppositely arranged with a subject interposed, and stored inside the casing rotatably around the body axis of the subject. The gantry device includes recessed/projecting parts in at least one of the outer face of the rotor and the inner face of the casing facing thereto, and includes closing members disposed such that the closing members close the recessed parts of the recessed/projecting parts.COPYRIGHT: (C)2013,JPO&INPIT【課題】X線管球からの熱を十分に放熱した上で、風切り音を低減することが可能なX線CT用の架台装置を提供する。【解決手段】実施形態のX線CT用の架台装置は、筐体と、被検体を間にして対向配置されたX線管球及びX線検出器が設けられ、被検体の体軸を中心に回転可能に筐体の内部に収納された回転体とを有し、回転体の外面とそれに対向する筐体の内面との少なくとも一方に凹凸部が設けられ、凹凸部の凹部を塞ぐように配置された閉塞部材を有する。【選択図】図1
