PROBLEM TO BE SOLVED: To make a doctor or a radiological technologist set proper imaging conditions by making the doctor or the radiological technologist recognize an exposure dose of a subject in advance before manual imaging in order to prevent the exposure dose from being meaningless.SOLUTION: In a radiographic imaging system (10), an estimated exposure dose calculating part (70) calculates an estimated exposure dose, which is an estimate of the exposure dose of a subject (16) by irradiation of radiation (20), based on imaging conditions, and an exposure dose outputting part (66) outputs the calculated estimated exposure dose to the outside after the imaging conditions are set and prior to radiation imaging.【課題】マニュアル撮影前に被写体の被曝量を医師又は放射線技師に予め認識させることにより、医師又は放射線技師に対して、無意味な被曝量とならないように適正な撮影条件を設定させる。【解決手段】放射線画像撮影システム（１０）は、撮影条件の設定後で且つ放射線撮影の前に、推定被曝量算出部（７０）によって、放射線（２０）の照射による被写体（１６）の被曝量の推定値である推定被曝量を、撮影条件に基づき算出し、被曝量出力部（６６）によって、算出された推定被曝量を外部に出力する。【選択図】図１
