PROBLEM TO BE SOLVED: To suppress influence by wireless communication signals exerted to radiation image signals during read from a radiation detector and to reduce noise in the radiation image signals, in a radiation image detector for reading the radiation image signals from a radiation detection part which detects radiation transmitted through an object and outputting the radiation image signals as the wireless communication signals.SOLUTION: The carrier frequency of a cassette transmitter-receiver 48 during the read of the radiation image signals from the radiation detector 40 is made lower than the carrier frequency of the cassette transmitter-receiver 48 at the time other than the time of the read.COPYRIGHT: (C)2009,JPO&INPIT【課題】被写体を透過した放射線を検出する放射線検出部から放射線画像信号を読み取り、その放射線画像信号を無線通信信号として出力する放射線画像検出装置おいて、放射線検出器から読取中の放射線画像信号に対して無線通信信号が与える影響を抑制し、放射線画像信号におけるノイズを減少させる。【解決手段】放射線検出器40から放射線画像信号の読取中におけるカセッテ送受信機48の搬送周波数を、上記読取中以外におけるカセッテ送受信機48の搬送周波数よりも下げる。【選択図】図4
