A wireless communication control unit (204) controls a transmitting and receiving apparatus (48) so as to prohibit transmission of radiation image information to the outside by wireless communication or power supply from the outside to an electric power source (44) by wireless communication in accordance with an exposure detecting signal from an exposure detecting unit (200) or a conversion detecting signal from a conversion detecting unit (202). Thus, this can control the transmitting and receiving apparatus (48) not to carry out, at the same period of time, the irradiation of a radiation (X) to a radiation detector (40), a conversion operation of the radiation image information in the radiation detector (40), and wireless communication by the transmitting and receiving apparatus (48).
