PROBLEM TO BE SOLVED: To perform the processing of the radiation stopping of X rays of a radiation source controller side by an AEC without a delay.SOLUTION: A source controller unit 11 for controlling an x-ray source is provided with: a detection signal I/F 26 for receiving detection signals from detective pixels 65 of an electronic cassette 13 or an integrated value of the detection signals only, or an I/F 120 for receiving a radiation stopping signal only and a radiation signal I/F 27 for receiving other radiation signals than the radiation stopping signal, such as a radiation admitting signal. Since an I/F for receiving an automatic exposure control signal only is provided, the source controller unit 11 does not need signal sorting operation in which the kind of a signal is determined to decide the process corresponding the same, nor receive different kinds of signals at the same time, thereby improving the speed of radiation stopping procedure of X rays.COPYRIGHT: (C)2013,JPO&INPIT【課題】AECによる線源制御装置側のX線の照射停止の処理を遅延なく行う。【解決手段】線源制御装置11は、電子カセッテ13の検出画素65からの検出信号またはその積算値を専用に受信する検出信号I/F26、もしくはX線の照射停止信号を専用に受信する照射停止信号専用I/F120と、照射許可信号等の照射停止信号以外の照射信号を受信する照射信号I/F27とを備える。自動露出制御用信号を専用に受信するI/Fを設けたことで、信号の種類を判断してそれに応じた処理を決定する分岐処理を行う必要がなくなり、タイミングを同じくして異なる種類の信号を受信することもなくなるので、X線の照射停止の処理を迅速化することができる。【選択図】図19
