PROBLEM TO BE SOLVED: To reduce noise in image signals by suppressing influence imparted onto image signals being read out from a radiation detector by wireless communication signals in a radiation imaging apparatus that generates confirmation image signals having lower resolution than radiation images on the basis of the radiation image signals obtained by imaging and transmits the confirmation image signals prior to the transmission of the radiation image signals.SOLUTION: The signal strength of communications of a cassette transmitter/receiver 48 is set to be lower during the transmission of the confirmation image signals, that is, during the readout of image signals from a radiation detector 40, than the signal strength of communications of the cassette transmitter/receiver 48 at times other than during the readout.COPYRIGHT: (C)2009,JPO&INPIT【課題】撮影により得られた放射線画像信号に基づいて、放射線画像信号よりも解像度が低い確認用画像信号を生成し、放射線画像信号の送信に先立って確認用画像信号を送信する放射線画像撮影装置において、放射線検出器から読取中の画像信号に対して無線通信信号が与える影響を抑制し、画像信号におけるノイズを減少させる。【解決手段】確認用画像信号を送信する際、すなわち放射線検出器40から画像信号の読取中におけるカセッテ送受信機48の通信出力の大きさを、上記読取中以外におけるカセッテ送受信機48の通信出力の大きさよりも下げる。【選択図】図4
