PROBLEM TO BE SOLVED: To reduce the size of a housing and power consumption in wireless communication with a controller.SOLUTION: An electronic cassette includes: a radiation detection part for detecting the start/end of irradiation and a radio communication part which communicates with a console by multiple communication methods. As shown in Fig.(A), communication with the console is performed in a low-power consumption communication mode at a lower speed until the start of irradiation is detected. When the start of irradiation is detected, radiation image capturing is started. When the end of irradiation is detected, a captured image is read, and image data is written in a memory. During the above period, communication with the console is suspended. The image data is transmitted to the console in a high-speed communication mode after writing the data.COPYRIGHT: (C)2012,JPO&INPIT【課題】制御装置との間の通信を無線によって行う構成において、筐体の小型化と消費電力の低減を両立する。【解決手段】電子カセッテには、放射線の照射開始/終了を検出する放射線検出部と、複数の通信方式でコンソールと無線通信可能な無線通信部と、が設けられており、選択図(A)に示すように、放射線の照射開始が検出される迄の期間は、低速で低消費電力の通信モードでコンソールとの通信を行う。放射線の照射開始が検出されると放射線画像の撮影を開始し、放射線の照射終了が検出されると撮影画像の読み出し/メモリへの画像データの書き込みを行うが、この間はコンソールとの通信を停止し、データ書込後は高速通信モードでコンソールへ画像データを送信する。【選択図】図8
