PROBLEM TO BE SOLVED: To provide a radiation image detector maintaining the resolution in six directions before and after binning of four pixels.SOLUTION: In a radiation detector 42, the TFT switch 4a of each pixel is turned on in response to a control signal from a plurality of first scanning lines G1, and a charge signal corresponding to the stored charges is transmitted to a data line D. In response to a control signal from a plurality of second scanning lines G2, the TFT switches 4b of pixels constituting each pixel group are turned on for each pixel group combining a plurality of adjoining pixels, and binning for simultaneously reading and compounding the charges of four pixels in the radiation detection element of the radiation detector 42 is performed, before transmitting a charge signal corresponding to the amount of charges to the data line D.COPYRIGHT: (C)2013,JPO&INPIT【課題】４画素のビニング処理の前後で６方向の解像度を維持した放射線画像検出器を提供する。【解決手段】放射線検出器４２において、複数の第１スキャン配線Ｇ１からの制御信号に応じて各画素のＴＦＴスイッチ４ａをオンにして、蓄積された電荷に応じた電荷信号をデータ配線Ｄに伝送する。また、複数の第２スキャン配線Ｇ２からの制御信号に応じて、隣接する複数の画素を組み合わせた画素群毎に、各画素群を構成する画素のＴＦＴスイッチ４ｂをオンして、放射線検出器４２の放射線検出素子内で４画素分の電荷を同時に読み取って合成するビニング処理を行い、その電荷量に応じた電荷信号をデータ配線Ｄに伝送する。【選択図】図２
