PROBLEM TO BE SOLVED: To improve the cooling effect for a heat-generating electric part and achieve stable performance maintenance of an X-ray detector even when taking a moving image in which continuous drive lasts for a long time period.SOLUTION: A radiation imaging device includes: a housing (1207-1209) for housing an X-ray detector 1201 for detecting an X-ray transmitted through a subject as an image signal and an electric part 1204 for processing the image signal detected by the X-ray detector 1201 an exterior cover 1210 formed so as to cover the outside of the housing a fan motor 1230 disposed inside the housing for stirring the air inside the housing and a fan motor 1213 disposed outside the housing being inside the exterior cover 1210 for cooling the housing.COPYRIGHT: (C)2011,JPO&INPIT【課題】連続駆動が長時間続く動画撮影などを行う場合であっても、発熱する電気部品の冷却効果を向上させるとともに、X線検出器の安定した性能維持を実現する。【解決手段】被写体を透過したX線を画像信号として検出するX線検出器1201と、X線検出器1201で検出した画像信号の処理を行う電気部品1204とを内部に格納する筐体(1207~1209)と、当該筐体の外側を覆うように形成された外装カバー1210と、筐体の内部に設けられ、当該筐体の内部の空気を攪拌するファンモータ1230と、筐体の外側であって、外装カバー1210の内側に設けられ、筐体の冷却を行うファンモータ1213を備える。【選択図】図1
