PROBLEM TO BE SOLVED: To provide a technique advantageous to improvement of reliability of a radiation imaging apparatus comprising two sensor panels and improvement of quality of a radiation image.SOLUTION: The radiation imaging apparatus comprises: a first panel in which a plurality of radiation detection elements are arranged on a first substrate； a second panel in which a plurality of radiation detection elements are arranged on a second substrate； and a sheet-like adhesion part which adheres a surface of the first panel side of the second panel with a surface of the second panel side of the first panel so that the first panel and the second panel are overlapped mutually in a plane view for a top face of the first substrate. The adhesion part is configured so as to maintain their adhesion while allowing changes in a relative position of the first panel in a plane direction parallel with the top face of the first substrate and the second panel.SELECTED DRAWING: Figure 4【課題】２つのセンサパネルを備える放射線撮像装置の信頼性の向上および放射線画像の品質の向上に有利な技術を提供する。【解決手段】放射線撮像装置は、第１基板上に複数の放射線検出素子が配列された第１パネルと、第２基板上に複数の放射線検出素子が配列された第２パネルと、前記第１基板の上面に対する平面視において前記第１パネル及び前記第２パネルが互いに重なるように、前記第１パネルの前記第２パネル側の面と前記第２パネルの前記第１パネル側の面とを接着するシート状の接着部と、を備え、前記接着部は、前記第１基板の前記上面と平行な平面方向における前記第１パネルと前記第２パネルとの相対位置の変化を許容しつつそれらの接着を維持するように構成されている。【選択図】図４
