PROBLEM TO BE SOLVED: To provide a radiation imaging apparatus that can accurately detect irradiation with radiation by suppressing an influence of noise caused by a radio wave emitted from an antenna.SOLUTION: The radiation imaging apparatus almost uniformly arranges a plurality of radiation detection pixels 32A for detecting the radiation in a photographing area 31 and divides the photographing area 31 into a plurality of areas 33 according to the degree of separation from the antenna 6 for enlarging the area near the antenna 66 as communication strength becomes stronger and changes a detection algorithm between an area 31A near the antenna and an area 31B separating the antenna to detect the irradiation with the radiation based on a detection result of a detection part.COPYRIGHT: (C)2012,JPO&INPIT【課題】アンテナから照射される電波の影響によるノイズの影響を抑えて放射線の照射を精度よく検知できる放射線画像撮影装置を提供する。【解決手段】放射線を検出する複数の放射線検出用画素32Aを撮影領域31に略均一に配置し、通信強度が強いほどアンテナ66に近い領域を大きくするものとして撮影領域31をアンテナ6からの離間度合いに応じて複数の領域33に分け、アンテナに近い領域31Aと離れた領域31Bとで検出アルゴリズムを変えて検出部の検出結果に基づき放射線の照射の検知を行う。【選択図】図9
