PROBLEM TO BE SOLVED: To prevent image quality deterioration during imaging irrespectively of the presence of a power reception function.SOLUTION: A power supply device 91 supplies power for charging a built-in battery 41 of an electronic cassette in a non-contact state. When a detachment/attachment detection part detects that the cassette is mounted on a holder of an imaging table, an inquiry signal is transmitted from a power supply coil 92 under control of a power supply control part 97. When the cassette having no power reception function in the holder is mounted and when a response signal is not received for a predetermined time from the start of transmission of the inquiry signal, the transmission of the inquiry signal is stopped by the power supply control part 97.COPYRIGHT: (C)2013,JPO&INPIT【課題】受電機能をもつカセッテでももたないカセッテでも画質劣化を引き起こすことなく撮影ができるようにする。【解決手段】給電装置91は、電子カセッテの内蔵バッテリ41を充電するための電力を非接触で給電する。着脱検知部でカセッテが撮影台のホルダに装着されていると検知されたとき、給電制御部97の制御の下、給電コイル92から問い合わせ信号が送信される。ホルダに受電機能をもたないカセッテが装着されていて、問い合わせ信号の送信開始から所定時間応答信号が受信されない場合は給電制御部97により問い合わせ信号の送信が停止される。【選択図】図4
