PROBLEM TO BE SOLVED: To detect an abnormality in any of a radiation image generating means, a radiation dose information detector or a radiation source without mounting other measuring devices such as a radiometer.SOLUTION: A mammography apparatus 12 as the radiation image photographing apparatus includes the radiation source 33 for emitting radiation a solid detector 46 for detecting the radiation emitted from the radiation source 33 and generating a radiation image a radiation source control part 76 for controlling the dose of radiation emitted from the radiation source 33 based on the output of an AEC (Automatic Exposure Control) sensor 49 for detecting the dose of radiation emitted from the radiation source 33 a reference output storage part 90 for storing the range of reference output which defines the range of reference output for the solid detector 46 and the AEC sensor 49 and an abnormality detecting part 88 capable of detecting an abnormality in any of the solid detector 46 or the AEC sensor 49 or the radiation source 33 by comparing the output and the reference output range of the solid detector 46 and the AEC sensor 49.COPYRIGHT: (C)2009,JPO&INPIT【課題】線量計等の測定器を別途設けることなく、前記放射線画像生成手段、放射線量情報検出器又は放射線源のいずれかの異常を検出する。【解決手段】放射線画像撮影装置であるマンモグラフィ装置12は、放射線を照射する放射線源33と、放射線源33から照射される放射線を検出し放射線画像を生成する固体検出器46と、放射線源33から照射される放射線量を検出するAECセンサ49の出力に基づき、放射線源33から照射する放射線量を制御する放射線源制御部76と、固体検出器46及びAECセンサ49の基準となる出力の範囲を規定した基準出力範囲が記憶される基準出力記憶部90と、固体検出器46及びAECセンサ49の出力と基準出力範囲とを比較して、固体検出器46、AECセンサ49又は放射線源33のいずれかの異常を検出可能な異常検出部88とを備える。【選択図】図5
