RADIATION DETECTION DEVICE

To provide a radiation detection device capable of preventing occurrence of image unevenness even in a configuration having multiple pieces of potential with different purposes on a circuit board.SOLUTION: A radiation detection device includes: a radiation detection section 11 for detecting radiation; a conductive pedestal 12 for supporting the radiation detection section 11; a circuit board 14 that has a first earthed electrode (ground (R-GND) G1) and a second earthed electrode (ground (G-GND) G2) different from the first earthed electrode, and processes a signal read from the radiation detection section 11; and insulating members (a first insulating member 35 and a second insulating member 36) for shutting off conduction between the second earthed electrode and the pedestal 12.SELECTED DRAWING: Figure 3 【課題】回路基板上に複数の異なる目的の電位を有する構成であっても、画像ムラの発生を防止することが可能な放射線検出装置を提供する。【解決手段】放射線を検出する放射線検出部１１と、放射線検出部１１を支持する導電性の基台１２と、第１接地電極（グランド（Ｒ－ＧＮＤ）Ｇ１）及び第１接地電極とは異なる第２接地電極（グランド（Ｇ－ＧＮＤ）Ｇ２）を有し、放射線検出部１１から読み出された信号を処理する回路基板１４と、第２接地電極と基台１２との導通を遮断する絶縁部材（第１絶縁部材３５、第２絶縁部材３６）と、を備える。【選択図】図３