PROBLEM TO BE SOLVED: To facilitate repair work of a flexible circuit board and suppress noise in a signal transmitted through the flexible circuit board. A radiation imaging apparatus 1 according to an embodiment includes a first surface 31a on which a detection region R is formed and an electrode pad 33 is formed outside the detection region R, and a first surface 31a on the opposite side of the first surface 31a. A radiation detection panel 30 having a second surface 31b, a base substrate 20 having a support surface 20a that faces the second surface 31b of the radiation detection panel 30 and supports the radiation detection panel 30, and a connecting member 70. The flexible circuit board 40 connected to the electrode pad 33 is provided, and the end portion 21a of the base substrate 20 is flexible with the electrode pad 33, the connection member 70, and the flexible member when viewed from the Z direction orthogonal to the support surface 20a. It is located inside the inner end A1 of the connection region A where the circuit board 40 overlaps. [Selection diagram] Figure 2【課題】可撓性回路基板のリペア作業を容易化すると共に可撓性回路基板を介して伝達される信号におけるノイズを抑制することができる。【解決手段】一実施形態の放射線撮像装置１は、検出領域Ｒが形成されると共に検出領域Ｒの外側に電極パッド３３が形成された第１面３１ａと、第１面３１ａとは反対側の第２面３１ｂと、を有する放射線検出パネル３０と、放射線検出パネル３０の第２面３１ｂに対向すると共に放射線検出パネル３０を支持する支持面２０ａを有するベース基板２０と、接続部材７０を介して電極パッド３３に接続された可撓性回路基板４０と、を備え、ベース基板２０の端部２１ａは、支持面２０ａに直交するＺ方向から見て、電極パッド３３と接続部材７０と可撓性回路基板４０とが重なる接続領域Ａの内側端部Ａ１よりも内側に位置している。【選択図】図２
