PROBLEM TO BE SOLVED: To provide a radiation imaging device and a program which prevent lowering of determination accuracy of radiation irradiation even when a pixel for radiation detection after shipment becomes defective.SOLUTION: An electronic cassette 20 includes a plurality of TFTs 102b which are provided for reading out electric signals of a plurality of pixels 100b exclusive for detection for detecting whether radiation 16 is emitted, a first readout control part 140 which drives the plurality of TFTs 102b and reads out the electric signals of the pixels 100b exclusive for detection, and a defective pixel determining part 144 which determines whether or not the pixels 100b are defective, based on the electric signals of the pixels 100b. The electric signals of the plurality of pixels 100b exclusive for detection are read out from one output signal line 126, and the first readout control part 140 prohibits readout of the electric signals of the pixels 100b exclusive for detection which are determined as defective.COPYRIGHT: (C)2012,JPO&INPIT【課題】出荷後における放射線検知用の画素が欠陥画素となった場合であっても、放射線照射の判定精度の低下を防止する放射線撮像装置及びプログラムを提供する。【解決手段】電子カセッテ20は、放射線16が照射されたかを検知するための複数の検知専用画素100bの電気信号を読み出すための複数のTFT102bと、複数のTFT102bを駆動して、複数の検知専用画素100bの電気信号を読み出す第1読出制御部140と、検知専用画素100bの電気信号に基づいて、検知専用画素100bが欠陥画素であるか否かを判定する欠陥画素判定部144とを備え、複数の検知専用画素100bの電気信号は1本の出力信号線126から読み出され、第1読出制御部140は、欠陥画素であると判定された検知専用画素100bの電気信号の読み出しを禁止する。【選択図】図4
