PROBLEM TO BE SOLVED: To provide a radiation image photographing device that can accurately detect a radiation ray by suppressing influence of noises even when noises occur due to disturbance factors.SOLUTION: The radiation image photographing device includes, on an insulating substrate 1, a radiation ray detection sensor unit 103 that generates charges by receiving the radiation ray or light converted from the radiation ray, a D6 signal wiring 3 which is connected to the radiation ray detection sensor unit 103 and in which an electric signal according to the charges generated in the radiation ray detection sensor unit flows, and a D7 signal wiring 3 with a substantially same wiring pattern as a first wiring. The radiation ray is detected based on a difference between the electric signal flowing in the D6 signal wiring 3 and the electric signal flowing in the D7 signal wiring 3, or a difference between values of digital data respectively obtained by digital conversion of the electric signal flowing in the D6 signal wiring 3 and the electric signal flowing in the D7 signal wiring 3.COPYRIGHT: (C)2012,JPO&INPIT【課題】外乱要因などに起因してノイズが発生する場合でも、ノイズの影響を抑えて精度良く放射線を検出できる放射線画像撮影装置を提供する。【解決手段】絶縁性基板1に、放射線または放射線が変換された光を受けて電荷を発生する放射線検出用のセンサ部103、当該放射線検出用のセンサ部103に接続され、当該放射線検出用のセンサ部に発生した電荷に応じた電気信号が流れるD6の信号配線3と共に、第1配線と略同一の配線パターンのD7の信号配線3を設け、D6の信号配線3を流れる電気信号とD7の信号配線3を流れる電気信号との差、又は、D6の信号配線3を流れる電気信号とD7の信号配線3を流れる電気信号とを各々デジタル変換したデジタルデータの値の差に基づいて放射線の検出を行う。【選択図】図10
