PROBLEM TO BE SOLVED: To provide a radiation imaging system which can be controlled so as to appropriately perform imaging even in a situation where imaging is performed in a synchronous system or non-synchronous system at the time of imaging in an FPD (Flat Panel Detector) system.SOLUTION: A radiation imaging system 50 comprises a radiation generator 57 which makes a radiation source 52 emit radiation in response to an emission start signal by an exposure switch 56, and an FPD cassette 1F, and also comprises means 58 for switching imaging systems between a first imaging system in which the FPD cassette 1F is shifted to a charge storage state on the basis of the emission start signal before the start of radiation emission by the radiation generator 57 and a second imaging system in which the FPD cassette 1F is shifted to the charge storage state by detecting the start of emission of radiation after the start of radiation emission by the radiation generator 57. The FPD cassette 1F reads out image data by operating in accordance with the imaging system switched by the means 58.COPYRIGHT: (C)2015,JPO&INPIT【課題】FPD方式の撮影の際に同期方式や非同期方式で撮影を行うような状況においても、適切に撮影を行うことができるように制御することが可能な放射線画像撮影システムを提供する。【解決手段】曝射スイッチ56による照射開始信号に応答して放射線源52から放射線を照射させる放射線発生装置57と、FPDカセッテ1Fと、を備える放射線画像撮影システム50において、FPDカセッテ1Fを放射線発生装置57による放射線照射開始前に照射開始信号に基づいて電荷蓄積状態に移行させる第一の撮影方式と、FPDカセッテ1Fを放射線発生装置57による放射線照射開始後に放射線の照射が開始されたことを検出して電荷蓄積状態に移行させる第二の撮影方式との間で撮影方式を切り替える手段58を有し、FPDカセッテ1Fは、手段58により切り替えられた撮影方式に対応して動作して画像データを読み出す。【選択図】図1
