PROBLEM TO BE SOLVED: To provide a high-quality radiation image while suppressing power consumption.SOLUTION: A radiation imaging apparatus (20) is provided with: a radiation conversion panel (52) capable of converting radiation to a radiation image a signal readout unit (82) for reading out an image signal from the radiation conversion panel (52) a power supply unit (64) which supplies power to the radiation conversion panel (52)and the signal readout unit (82) and readout control units (98 and 108) which control reading out of the image signal by the signal readout unit (82) on the basis of the state of the power supply unit (64).COPYRIGHT: (C)2012,JPO&INPIT【課題】電力消費を抑えつつ、高画質の放射線画像を取得する。【解決手段】放射線撮像装置(20)は、放射線を放射線画像に変換可能な放射線変換パネル(52)と、前記放射線変換パネル(52)から画像信号を読み出す信号読出部(82)と、前記放射線変換パネル(52)及び前記信号読出部(82)に電力を供給する電源部(64)と、前記電源部(64)の状態に基づいて前記信号読出部(82)での前記画像信号の読み出しを制御する読出制御部(98、108)とを備える。【選択図】図3
